Author name code: janssen
ADS astronomy entries on 2022-09-14
=author:"Janssen, K." OR =author:"Janssen, Katja"
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Title: Gaia Data Release 3: Summary of the content and survey
properties
Authors: Gaia Collaboration; Vallenari, A.; Brown, A. G. A.; Prusti,
T.; de Bruijne, J. H. J.; Arenou, F.; Babusiaux, C.; Biermann, M.;
Creevey, O. L.; Ducourant, C.; Evans, D. W.; Eyer, L.; Guerra, R.;
Hutton, A.; Jordi, C.; Klioner, S. A.; Lammers, U. L.; Lindegren,
L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Soubiran, C.; Tanga, P.; Walton, N. A.; Bailer-Jones,
C. A. L.; Bastian, U.; Drimmel, R.; Jansen, F.; Katz, D.; Lattanzi,
M. G.; van Leeuwen, F.; Bakker, J.; Cacciari, C.; Castañeda, J.;
De Angeli, F.; Fabricius, C.; Fouesneau, M.; Frémat, Y.; Galluccio,
L.; Guerrier, A.; Heiter, U.; Masana, E.; Messineo, R.; Mowlavi, N.;
Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo, P.; Riclet,
F.; Roux, W.; Seabroke, G. M.; Sordoørcit, R.; Thévenin, F.;
Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann, M.; Andrae, R.;
Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme,
R.; Burgess, P. W.; Busonero, D.; Busso, G.; Cánovas, H.; Carry,
B.; Cellino, A.; Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson,
M.; de Teodoro, P.; Nuñez Campos, M.; Delchambre, L.; Dell'Oro,
A.; Esquej, P.; Fernández-Hernández, J.; Fraile, E.; Garabato, D.;
García-Lario, P.; Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly,
N. C.; Harrison, D. L.; Hernández, J.; Hestroffer, D.; Hodgkin,
S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle, G.; Jordan,
S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Marchal, O.;
Marrese, P. M.; Moitinho, A.; Muinonen, K.; Osborne, P.; Pancino,
E.; Pauwels, T.; Recio-Blanco, A.; Reylé, C.; Riello, M.; Rimoldini,
L.; Roegiers, T.; Rybizki, J.; Sarro, L. M.; Siopis, C.; Smith, M.;
Sozzetti, A.; Utrilla, E.; van Leeuwen, M.; Abbas, U.; Ábrahám, P.;
Abreu Aramburu, A.; Aerts, C.; Aguado, J. J.; Ajaj, M.; Aldea-Montero,
F.; Altavilla, G.; Álvarez, M. A.; Alves, J.; Anders, F.; Anderson,
R. I.; Anglada Varela, E.; Antoja, T.; Baines, D.; Baker, S. G.;
Balaguer-Núñez, L.; Balbinot, E.; Balog, Z.; Barache, C.; Barbato,
D.; Barros, M.; Barstow, M. A.; Bartolomé, S.; Bassilana, J. -L.;
Bauchet, N.; Becciani, U.; Bellazzini, M.; Berihuete, A.; Bernet, M.;
Bertone, S.; Bianchi, L.; Binnenfeld, A.; Blanco-Cuaresma, S.; Blazere,
A.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.;
Bramante, L.; Breedt, E.; Bressan, A.; Brouillet, N.; Brugaletta, E.;
Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carnerero, M. I.; Carrasco, J. M.; Casamiquela, L.; Castellani, M.;
Castro-Ginard, A.; Chaoul, L.; Charlot, P.; Chemin, L.; Chiaramida,
V.; Chiavassa, A.; Chornay, N.; Comoretto, G.; Contursi, G.; Cooper,
W. J.; Cornez, T.; Cowell, S.; Crifo, F.; Cropper, M.; Crosta, M.;
Crowley, C.; Dafonte, C.; Dapergolas, A.; David, M.; David, P.; de
Laverny, P.; De Luise, F.; De March, R.; De Ridder, J.; de Souza, R.;
de Torres, A.; del Peloso, E. F.; del Pozo, E.; Delbo, M.; Delgado,
A.; Delisle, J. -B.; Demouchy, C.; Dharmawardena, T. E.; Di Matteo,
P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.; Edvardsson,
B.; Enke, H.; Fabre, C.; Fabrizio, M.; Faigler, S.; Fedorets, G.;
Fernique, P.; Fienga, A.; Figueras, F.; Fournier, Y.; Fouron, C.;
Fragkoudi, F.; Gai, M.; Garcia-Gutierrez, A.; Garcia-Reinaldos, M.;
García-Torres, M.; Garofalo, A.; Gavel, A.; Gavras, P.; Gerlach,
E.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.;
Gomel, R.; Gomez, A.; González-Núñez, J.; González-Santamaría,
I.; González-Vidal, J. J.; Granvik, M.; Guillout, P.; Guiraud, J.;
Gutiérrez-Sánchez, R.; Guy, L. P.; Hatzidimitriou, D.; Hauser, M.;
Haywood, M.; Helmer, A.; Helmi, A.; Sarmiento, M. H.; Hidalgo, S. L.;
Hilger, T.; Hładczuk, N.; Hobbs, D.; Holland, G.; Huckle, H. E.;
Jardine, K.; Jasniewicz, G.; Jean-Antoine Piccolo, A.; Jiménez-Arranz,
Ó.; Jorissen, A.; Juaristi Campillo, J.; Julbe, F.; Karbevska, L.;
Kervella, P.; Khanna, S.; Kontizas, M.; Kordopatis, G.; Korn, A. J.;
Kóspál, Á; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Kun, M.;
Laizeau, P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.;
Lebreton, Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi,
I.; Liao, S.; Licata, E. L.; Lindstrøm, H. E. P.; Lister, T. A.;
Livanou, E.; Lobel, A.; Lorca, A.; Loup, C.; Madrero Pardo, P.;
Magdaleno Romeo, A.; Managau, S.; Mann, R. G.; Manteiga, M.; Marchant,
J. M.; Marconi, M.; Marcos, J.; Marcos Santos, M. M. S.; Marín Pina,
D.; Marinoni, S.; Marocco, F.; Marshall, D. J.; Polo, L. Martin;
Martín-Fleitas, J. M.; Marton, G.; Mary, N.; Masip, A.; Massari,
D.; Mastrobuono-Battisti, A.; Mazeh, T.; McMillan, P. J.; Messina,
S.; Michalik, D.; Millar, N. R.; Mints, A.; Molina, D.; Molinaro, R.;
Molnár, L.; Monari, G.; Monguió, M.; Montegriffo, P.; Montero, A.;
Mor, R.; Mora, A.; Morbidelli, R.; Morel, T.; Morris, D.; Muraveva, T.;
Murphy, C. P.; Musella, I.; Nagy, Z.; Noval, L.; Ocaña, F.; Ogden, A.;
Ordenovic, C.; Osinde, J. O.; Pagani, C.; Pagano, I.; Palaversa, L.;
Palicio, P. A.; Pallas-Quintela, L.; Panahi, A.; Payne-Wardenaar, S.;
Peñalosa Esteller, X.; Penttilä, A.; Pichon, B.; Piersimoni, A. M.;
Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Prša, A.; Pulone,
L.; Racero, E.; Ragaini, S.; Rainer, M.; Raiteri, C. M.; Rambaux, N.;
Ramos, P.; Ramos-Lerate, M.; Re Fiorentin, P.; Regibo, S.; Richards,
P. J.; Rios Diaz, C.; Ripepi, V.; Riva, A.; Rix, H. -W.; Rixon, G.;
Robichon, N.; Robin, A. C.; Robin, C.; Roelens, M.; Rogues, H. R. O.;
Rohrbasser, L.; Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruz Mieres,
D.; Rybicki, K. A.; Sadowski, G.; Sáez Núñez, A.; Sagristà Sellés,
A.; Sahlmann, J.; Salguero, E.; Samaras, N.; Sanchez Gimenez, V.;
Sanna, N.; Santoveña, R.; Sarasso, M.; Schultheis, M.; Sciacca, E.;
Segol, M.; Segovia, J. C.; Ségransan, D.; Semeux, D.; Shahaf, S.;
Siddiqui, H. I.; Siebert, A.; Siltala, L.; Silvelo, A.; Slezak, E.;
Slezak, I.; Smart, R. L.; Snaith, O. N.; Solano, E.; Solitro, F.;
Souami, D.; Souchay, J.; Spagna, A.; Spina, L.; Spoto, F.; Steele,
I. A.; Steidelmüller, H.; Stephenson, C. A.; Süveges, M.; Surdej,
J.; Szabados, L.; Szegedi-Elek, E.; Taris, F.; Taylo, M. B.; Teixeira,
R.; Tolomei, L.; Tonello, N.; Torra, F.; Torra, J.; Torralba Elipe,
G.; Trabucchi, M.; Tsounis, A. T.; Turon, C.; Ulla, A.; Unger, N.;
Vaillant, M. V.; van Dillen, E.; van Reeven, W.; Vanel, O.; Vecchiato,
A.; Viala, Y.; Vicente, D.; Voutsinas, S.; Weiler, M.; Wevers, T.;
Wyrzykowski, L.; Yoldas, A.; Yvard, P.; Zhao, H.; Zorec, J.; Zucker,
S.; Zwitter, T.
Bibcode: 2022arXiv220800211G
Altcode:
We present the third data release of the European Space Agency's Gaia
mission, GDR3. The GDR3 catalogue is the outcome of the processing
of raw data collected with the Gaia instruments during the first
34 months of the mission by the Gaia Data Processing and Analysis
Consortium. The GDR3 catalogue contains the same source list, celestial
positions, proper motions, parallaxes, and broad band photometry in
the G, G$_{BP}$, and G$_{RP}$ pass-bands already present in the Early
Third Data Release. GDR3 introduces an impressive wealth of new data
products. More than 33 million objects in the ranges $G_{rvs} < 14$
and $3100 <T_{eff} <14500 $, have new determinations of their
mean radial velocities based on data collected by Gaia. We provide
G$_{rvs}$ magnitudes for most sources with radial velocities, and a
line broadening parameter is listed for a subset of these. Mean Gaia
spectra are made available to the community. The GDR3 catalogue includes
about 1 million mean spectra from the radial velocity spectrometer,
and about 220 million low-resolution blue and red prism photometer
BPRP mean spectra. The results of the analysis of epoch photometry are
provided for some 10 million sources across 24 variability types. GDR3
includes astrophysical parameters and source class probabilities for
about 470 million and 1500 million sources, respectively, including
stars, galaxies, and quasars. Orbital elements and trend parameters are
provided for some $800\,000$ astrometric, spectroscopic and eclipsing
binaries. More than $150\,000$ Solar System objects, including new
discoveries, with preliminary orbital solutions and individual epoch
observations are part of this release. Reflectance spectra derived
from the epoch BPRP spectral data are published for about 60\,000
asteroids. Finally, an additional data set is provided, namely the
Gaia Andromeda Photometric Survey (abridged)
Title: Gaia Data Release 3: Properties of the line broadening
parameter derived with the Radial Velocity Spectrometer (RVS)
Authors: Frémat, Y.; Royer, F.; Marchal, O.; Blomme, R.; Sartoretti,
P.; Guerrier, A.; Panuzzo, P.; Katz, D.; Seabroke, G. M.; Thévenin,
F.; Cropper, M.; Benson, K.; Damerdji, Y.; Haigron, R.; Lobel, A.;
Smith, M.; Baker, S. G.; Chemin, L.; David, M.; Dolding, C.; Gosset,
E.; Janßen, K.; Jasniewicz, G.; Plum, G.; Samaras, N.; Snaith,
O.; Soubiran, C.; Vanel, O.; Zorec, J.; Zwitter, T.; Brouillet, N.;
Caffau, E.; Crifo, F.; Fabre, C.; Fragkoudi, F.; Huckle, H. E.; Lasne,
Y.; Leclerc, N.; Mastrobuono-Battisti, A.; Jean-Antoine Piccolo, A.;
Viala, Y.
Bibcode: 2022arXiv220610986F
Altcode:
The third release of the Gaia catalogue contains the radial velocities
for 33,812,183 stars having effective temperatures ranging from
3100 K to 14,500 K. The measurements are based on the comparison
of the observed RVS spectrum (wavelength coverage: 846--870 nm,
median resolving power: 11,500) to synthetic data broadened
to the adequate Along-Scan Line Spread Function. The additional
line-broadening, fitted as it would only be due to axial rotation,
is also produced by the pipeline and is available in the catalogue
(field name gaia_source:vbroad). To describe the properties of the
line-broadening information extracted from the RVS and published in
the catalogue, as well as to analyse the limitations imposed by the
adopted method, wavelength range, and instrument. We use simulations
to express the link existing between the line broadening measurement
provided in Gaia Data Release 3 and Vsin(i). We then compare the
observed values to the measurements published by various catalogues
and surveys (GALAH, APOGEE, LAMOST, ...). While we recommend being
cautious in the interpretation of the vbroad measurement, we also
find a reasonable global agreement between the Gaia Data Release 3
line broadening values and those found in the other catalogues. We
discuss and establish the validity domain of the published vbroad
values. The estimate tends to be overestimated at the lower vsini
end, and at $T_\mathrm{eff}>7500\,\mathrm{K}$ its quality and
significance degrade rapidly when $G_\mathrm{RVS}>10$. Despite
all the known and reported limitations, the Gaia Data Release 3
line broadening catalogue contains the measurements obtained for
3,524,677 stars with $T_\mathrm{eff}$\ ranging from 3500 to 14,500 K,
and $G_\mathrm{RVS}<12$. It gathers the largest stellar sample ever
considered for the purpose, and allows a first mapping of the \Gaia\
line broadening parameter across the HR diagram.
Title: Gaia Data Release 3: G_RVS photometry from the RVS spectra
Authors: Sartoretti, P.; Marchal, O.; Babusiaux, C.; Jordi, C.;
Guerrier, A.; Panuzzo, P.; Katz, D.; Seabroke, G. M.; Thévenin, F.;
Cropper, M.; Benson, K.; Blomme, R.; Haigron, R.; Smith, M.; Baker,
S.; Chemin, L.; David, M.; Dolding, C.; Frémat, Y.; Janssen, K.;
Jasniewicz, G.; Lobel, A.; Plum, G.; Samaras, N.; Snaith, O.; Soubiran,
C.; Vanel, O.; Zwitter, T.; Brouillet, N.; Caffau, E.; Crifo, F.;
Fabre, C.; Frakgoudi, F.; Jean-Antoine Piccolo, A.; Huckle, H. E.;
Lasne, Y.; Leclerc, N.; Mastrobuono-Battisti, A.; Royer, F.; Viala,
Y.; Zorec, J.
Bibcode: 2022arXiv220605725S
Altcode:
Gaia Data Release 3 (DR3) contains the first release of magnitudes
estimated from the integration of Radial Velocity Spectrometer
(RVS) spectra for a sample of about 32.2 million stars brighter than
G_RVS~14 mag (or G~15 mag). In this paper, we describe the data used
and the approach adopted to derive and validate the G_RVS magnitudes
published in DR3. We also provide estimates of the G_RVS passband
and associated G_RVS zero-point. We derived G_RVS photometry from
the integration of RVS spectra over the wavelength range from 846
to 870 nm. We processed these spectra following a procedure similar
to that used for DR2, but incorporating several improvements that
allow a better estimation of G_RVS. These improvements pertain to the
stray-light background estimation, the line spread function calibration,
and the detection of spectra contaminated by nearby relatively bright
sources. We calibrated the G_RVS zero-point every 30 hours based on the
reference magnitudes of constant stars from the Hipparcos catalogue,
and used them to transform the integrated flux of the cleaned and
calibrated spectra into epoch magnitudes. The G_RVS magnitude of a
star published in DR3 is the median of the epoch magnitudes for that
star. We estimated the G_RVS passband by comparing the RVS spectra
of 108 bright stars with their flux-calibrated spectra from external
spectrophotometric libraries. The G_RVS magnitude provides information
that is complementary to that obtained from the G, G_BP, and G_RP
magnitudes, which is useful for constraining stellar metallicity and
interstellar extinction. The median precision of G_RVS measurements
ranges from about 0.006 mag for the brighter stars (i.e. with 3.5
< G_RVS < 6.5 mag) to 0.125 mag at the faint end. The derived
G_RVS passband shows that the effective transmittance of the RVS is
approximately 1.23 times better than the pre-launch estimate.
Title: Gaia Data Release 3: Mapping the asymmetric disc of the
Milky Way
Authors: Gaia Collaboration; Drimmel, R.; Romero-Gomez, M.; Chemin,
L.; Ramos, P.; Poggio, E.; Ripepi, V.; Andrae, R.; Blomme, R.;
Cantat-Gaudin, T.; Castro-Ginard, A.; Clementini, G.; Figueras,
F.; Fouesneau, M.; Fremat, Y.; Jardine, K.; Khanna, S.; Lobel, A.;
Marshall, D. J.; Muraveva, T.; Brown, A. G. A.; Vallenari, A.; Prusti,
T.; de Bruijne, J. H. J.; Arenou, F.; Babusiaux, C.; Biermann, M.;
Creevey, O. L.; Ducourant, C.; Evans, D. W.; Eyer, L.; Guerra, R.;
Hutton, A.; Jordi, C.; Klioner, S. A.; Lammers, U. L.; Lindegren,
L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Soubiran, C.; Tanga, P.; Walton, N. A.; Bailer-Jones,
C. A. L.; Bastian, U.; Jansen, F.; Katz, D.; Lattanzi, M. G.; van
Leeuwen, F.; Bakker, J.; Cacciari, C.; Castañeda, J.; De Angeli, F.;
Fabricius, C.; Galluccio, L.; Guerrier, A.; Heiter, U.; Masana, E.;
Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.;
Panuzzo, P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordoørcit, R.;
Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann,
M.; Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Burgess,
P. W.; Busonero, D.; Busso, G.; Cánovas, H.; Carry, B.; Cellino, A.;
Cheek, N.; Damerdji, Y.; Davidson, M.; de Teodoro, P.; Nuñez Campos,
M.; Delchambre, L.; Dell'Oro, A.; Esquej, P.; Fernández-Hernández,
J.; Fraile, E.; Garabato, D.; García-Lario, P.; Gosset, E.; Haigron,
R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.; Hernández,
J.; Hestroffer, D.; Hodgkin, S. T.; Holl, B.; Janßen, K.; Jevardat
de Fombelle, G.; Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.;
Löffler, W.; Marchal, O.; Marrese, P. M.; Moitinho, A.; Muinonen, K.;
Osborne, P.; Pancino, E.; Pauwels, T.; Recio-Blanco, A.; Reylé, C.;
Riello, M.; Rimoldini, L.; Roegiers, T.; Rybizki, J.; Sarro, L. M.;
Siopis, C.; Smith, M.; Sozzetti, A.; Utrilla, E.; van Leeuwen, M.;
Abbas, U.; Ábrahám, P.; Abreu Aramburu, A.; Aerts, C.; Aguado,
J. J.; Ajaj, M.; Aldea-Montero, F.; Altavilla, G.; Álvarez, M. A.;
Alves, J.; Anders, F.; Anderson, R. I.; Anglada Varela, E.; Antoja, T.;
Baines, D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog,
Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé,
S.; Bassilana, J. -L.; Bauchet, N.; Becciani, U.; Bellazzini, M.;
Berihuete, A.; Bernet, M.; Bertone, S.; Bianchi, L.; Binnenfeld, A.;
Blanco-Cuaresma, S.; Blazere, A.; Boch, T.; Bombrun, A.; Bossini, D.;
Bouquillon, S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.;
Brouillet, N.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.; Butkevich,
A. G.; Buzzi, R.; Caffau, E.; Cancelliere, R.; Carballo, R.; Carlucci,
T.; Carnerero, M. I.; Carrasco, J. M.; Casamiquela, L.; Castellani,
M.; Chaoul, L.; Charlot, P.; Chiaramida, V.; Chiavassa, A.; Chornay,
N.; Comoretto, G.; Contursi, G.; Cooper, W. J.; Cornez, T.; Cowell,
S.; Crifo, F.; Cropper, M.; Crosta, M.; Crowley, C.; Dafonte, C.;
Dapergolas, A.; David, M.; David, P.; de Laverny, P.; De Luise, F.;
De March, R.; De Ridder, J.; de Souza, R.; de Torres, A.; del Peloso,
E. F.; del Pozo, E.; Delbo, M.; Delgado, A.; Delisle, J. -B.; Demouchy,
C.; Dharmawardena, T. E.; Di Matteo, P.; Diakite, S.; Diener, C.;
Distefano, E.; Dolding, C.; Edvardsson, B.; Enke, H.; Fabre, C.;
Fabrizio, M.; Faigler, S.; Fedorets, G.; Fernique, P.; Fienga, A.;
Fournier, Y.; Fouron, C.; Fragkoudi, F.; Gai, M.; Garcia-Gutierrez,
A.; Garcia-Reinaldos, M.; García-Torres, M.; Garofalo, A.; Gavel,
A.; Gavras, P.; Gerlach, E.; Geyer, R.; Giacobbe, P.; Gilmore, G.;
Girona, S.; Giuffrida, G.; Gomel, R.; Gomez, A.; González-Núñez,
J.; González-Santamaría, I.; González-Vidal, J. J.; Granvik,
M.; Guillout, P.; Guiraud, J.; Gutiérrez-Sánchez, R.; Guy, L. P.;
Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Helmer, A.; Helmi, A.;
Sarmiento, M. H.; Hidalgo, S. L.; Hilger, T.; Hładczuk, N.; Hobbs,
D.; Holland, G.; Huckle, H. E.; Jasniewicz, G.; Jean-Antoine Piccolo,
A.; Jiménez-Arranz, Ó.; Jorissen, A.; Juaristi Campillo, J.; Julbe,
F.; Karbevska, L.; Kervella, P.; Kontizas, M.; Kordopatis, G.; Korn,
A. J.; Kóspál, Á; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Kun, M.;
Laizeau, P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.;
Lebreton, Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi,
I.; Liao, S.; Licata, E. L.; Lindstrøm, H. E. P.; Lister, T. A.;
Livanou, E.; Lorca, A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo,
A.; Managau, S.; Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi,
M.; Marcos, J.; Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni,
S.; Marocco, F.; Polo, L. Martin; Martín-Fleitas, J. M.; Marton, G.;
Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti, A.; Mazeh,
T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Mints,
A.; Molina, D.; Molinaro, R.; Molnár, L.; Monari, G.; Monguió,
M.; Montegriffo, P.; Montero, A.; Mor, R.; Mora, A.; Morbidelli, R.;
Morel, T.; Morris, D.; Murphy, C. P.; Musella, I.; Nagy, Z.; Noval,
L.; Ocaña, F.; Ogden, A.; Ordenovic, C.; Osinde, J. O.; Pagani, C.;
Pagano, I.; Palaversa, L.; Palicio, P. A.; Pallas-Quintela, L.; Panahi,
A.; Payne-Wardenaar, S.; Peñalosa Esteller, X.; Penttilä, A.; Pichon,
B.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Prša,
A.; Pulone, L.; Racero, E.; Ragaini, S.; Rainer, M.; Raiteri, C. M.;
Rambaux, N.; Ramos-Lerate, M.; Re Fiorentin, P.; Regibo, S.; Richards,
P. J.; Rios Diaz, C.; Riva, A.; Rix, H. -W.; Rixon, G.; Robichon, N.;
Robin, A. C.; Robin, C.; Roelens, M.; Rogues, H. R. O.; Rohrbasser,
L.; Rowell, N.; Royer, F.; Ruz Mieres, D.; Rybicki, K. A.; Sadowski,
G.; Sáez Núñez, A.; Sagristà Sellés, A.; Sahlmann, J.; Salguero,
E.; Samaras, N.; Sanchez Gimenez, V.; Sanna, N.; Santoveña, R.;
Sarasso, M.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.;
Ségransan, D.; Semeux, D.; Shahaf, S.; Siddiqui, H. I.; Siebert,
A.; Siltala, L.; Silvelo, A.; Slezak, E.; Slezak, I.; Smart, R. L.;
Snaith, O. N.; Solano, E.; Solitro, F.; Souami, D.; Souchay, J.;
Spagna, A.; Spina, L.; Spoto, F.; Steele, I. A.; Steidelmüller,
H.; Stephenson, C. A.; Süveges, M.; Surdej, J.; Szabados, L.;
Szegedi-Elek, E.; Taris, F.; Taylo, M. B.; Teixeira, R.; Tolomei,
L.; Tonello, N.; Torra, F.; Torra, J.; Torralba Elipe, G.; Trabucchi,
M.; Tsounis, A. T.; Turon, C.; Ulla, A.; Unger, N.; Vaillant, M. V.;
van Dillen, E.; van Reeven, W.; Vanel, O.; Vecchiato, A.; Viala, Y.;
Vicente, D.; Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, L.;
Yoldas, A.; Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zwitter, T.
Bibcode: 2022arXiv220606207G
Altcode:
With the most recent Gaia data release the number of sources with
complete 6D phase space information (position and velocity) has
increased to well over 33 million stars, while stellar astrophysical
parameters are provided for more than 470 million sources, in addition
to the identification of over 11 million variable stars. Using the
astrophysical parameters and variability classifications provided
in Gaia DR3, we select various stellar populations to explore and
identify non-axisymmetric features in the disc of the Milky Way in
both configuration and velocity space. Using more about 580 thousand
sources identified as hot OB stars, together with 988 known open
clusters younger than 100 million years, we map the spiral structure
associated with star formation 4-5 kpc from the Sun. We select over 2800
Classical Cepheids younger than 200 million years, which show spiral
features extending as far as 10 kpc from the Sun in the outer disc. We
also identify more than 8.7 million sources on the red giant branch
(RGB), of which 5.7 million have line-of-sight velocities, allowing
the velocity field of the Milky Way to be mapped as far as 8 kpc from
the Sun, including the inner disc. The spiral structure revealed by
the young populations is consistent with recent results using Gaia
EDR3 astrometry and source lists based on near infrared photometry,
showing the Local (Orion) arm to be at least 8 kpc long, and an outer
arm consistent with what is seen in HI surveys, which seems to be a
continuation of the Perseus arm into the third quadrant. Meanwhile,
the subset of RGB stars with velocities clearly reveals the large scale
kinematic signature of the bar in the inner disc, as well as evidence
of streaming motions in the outer disc that might be associated with
spiral arms or bar resonances. (abridged)
Title: Gaia Data Release 3: The extragalactic content
Authors: Gaia Collaboration; Bailer-Jones, C. A. L.; Teyssier, D.;
Delchambre, L.; Ducourant, C.; Garabato, D.; Hatzidimitriou, D.;
Klioner, S. A.; Rimoldini, L.; Bellas-Velidis, I.; Carballo, R.;
Carnerero, M. I.; Diener, C.; Fouesneau, M.; Galluccio, L.; Gavras,
P.; Krone-Martins, A.; Raiteri, C. M.; Teixeira, R.; Brown, A. G. A.;
Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Arenou, F.; Babusiaux,
C.; Biermann, M.; Creevey, O. L.; Evans, D. W.; Eyer, L.; Guerra,
R.; Hutton, A.; Jordi, C.; Lammers, U. L.; Lindegren, L.; Luri, X.;
Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti, P.;
Soubiran, C.; Tanga, P.; Walton, N. A.; Bastian, U.; Drimmel, R.;
Jansen, F.; Katz, D.; Lattanzi, M. G.; van Leeuwen, F.; Bakker, J.;
Cacciari, C.; Castañeda, J.; De Angeli, F.; Fabricius, C.; Frémat,
Y.; Guerrier, A.; Heiter, U.; Masana, E.; Messineo, R.; Mowlavi, N.;
Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo, P.; Riclet, F.;
Roux, W.; Seabroke, G. M.; Sordo, R.; Thévenin, F.; Gracia-Abril, G.;
Portell, J.; Altmann, M.; Andrae, R.; Audard, M.; Benson, K.; Berthier,
J.; Blomme, R.; Burgess, P. W.; Busonero, D.; Busso, G.; Cánovas,
H.; Carry, B.; Cellino, A.; Cheek, N.; Clementini, G.; Damerdji,
Y.; Davidson, M.; de Teodoro, P.; Nuñez Campos, M.; Dell'Oro, A.;
Esquej, P.; Fernández-Hernández, J.; Fraile, E.; García-Lario, P.;
Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Holl, B.;
Janßen, K.; Jevardat de Fombelle, G.; Jordan, S.; Lanzafame, A. C.;
Löffler, W.; Marchal, O.; Marrese, P. M.; Moitinho, A.; Muinonen,
K.; Osborne, P.; Pancino, E.; Pauwels, T.; Recio-Blanco, A.; Reylé,
C.; Riello, M.; Roegiers, T.; Rybizki, J.; Sarro, L. M.; Siopis, C.;
Smith, M.; Sozzetti, A.; Utrilla, E.; van Leeuwen, M.; Abbas, U.;
Ábrahám, P.; Abreu Aramburu, A.; Aerts, C.; Aguado, J. J.; Ajaj,
M.; Aldea-Montero, F.; Altavilla, G.; Álvarez, M. A.; Alves, J.;
Anderson, R. I.; Anglada Varela, E.; Antoja, T.; Baines, D.; Baker,
S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog, Z.; Barache, C.;
Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé, S.; Bassilana,
J. -L.; Bauchet, N.; Becciani, U.; Bellazzini, M.; Berihuete, A.;
Bernet, M.; Bertone, S.; Bianchi, L.; Binnenfeld, A.; Blanco-Cuaresma,
S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.;
Bramante, L.; Breedt, E.; Bressan, A.; Brouillet, N.; Brugaletta, E.;
Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cantat-Gaudin, T.; Carlucci, T.; Carrasco,
J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.; Chaoul,
L.; Charlot, P.; Chemin, L.; Chiaramida, V.; Chiavassa, A.; Chornay,
N.; Comoretto, G.; Contursi, G.; Cooper, W. J.; Cornez, T.; Cowell,
S.; Crifo, F.; Cropper, M.; Crosta, M.; Crowley, C.; Dafonte, C.;
Dapergolas, A.; David, P.; de Laverny, P.; De Luise, F.; De March,
R.; De Ridder, J.; de Souza, R.; de Torres, A.; del Peloso, E. F.;
del Pozo, E.; Delbo, M.; Delgado, A.; Delisle, J. -B.; Demouchy, C.;
Dharmawardena, T. E.; Diakite, S.; Distefano, E.; Dolding, C.; Enke,
H.; Fabre, C.; Fabrizio, M.; Faigler, S.; Fedorets, G.; Fernique,
P.; Figueras, F.; Fournier, Y.; Fouron, C.; Fragkoudi, F.; Gai,
M.; Garcia-Gutierrez, A.; Garcia-Reinaldos, M.; García-Torres, M.;
Garofalo, A.; Gavel, A.; Gerlach, E.; Geyer, R.; Giacobbe, P.; Gilmore,
G.; Girona, S.; Giuffrida, G.; Gomel, R.; Gomez, A.; González-Núñez,
J.; González-Santamaría, I.; González-Vidal, J. J.; Granvik,
M.; Guillout, P.; Guiraud, J.; Gutiérrez-Sánchez, R.; Guy, L. P.;
Hauser, M.; Haywood, M.; Helmer, A.; Helmi, A.; Sarmiento, M. H.;
Hidalgo, S. L.; Hładczuk, N.; Hobbs, D.; Holland, G.; Huckle, H. E.;
Jardine, K.; Jasniewicz, G.; Jean-Antoine Piccolo, A.; Jiménez-Arranz,
Ó.; Juaristi Campillo, J.; Julbe, F.; Karbevska, L.; Kervella, P.;
Khanna, S.; Kontizas, M.; Kordopatis, G.; Korn, A. J.; Kóspál,
Á; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Kun, M.; Laizeau, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Lebreton,
Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao,
S.; Licata, E. L.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.;
Lobel, A.; Lorca, A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo,
A.; Managau, S.; Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi,
M.; Marcos, J.; Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni, S.;
Marocco, F.; Marshall, D. J.; Polo, L. Martin; Martín-Fleitas, J. M.;
Marton, G.; Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti,
A.; Mazeh, T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar,
N. R.; Mints, A.; Molina, D.; Molinaro, R.; Molnár, L.; Monari,
G.; Monguió, M.; Montegriffo, P.; Montero, A.; Mor, R.; Mora, A.;
Morbidelli, R.; Morel, T.; Morris, D.; Muraveva, T.; Murphy, C. P.;
Musella, I.; Nagy, Z.; Noval, L.; Ocaña, F.; Ogden, A.; Ordenovic,
C.; Osinde, J. O.; Pagani, C.; Pagano, I.; Palaversa, L.; Palicio,
P. A.; Pallas-Quintela, L.; Panahi, A.; Payne-Wardenaar, S.; Peñalosa
Esteller, X.; Penttilä, A.; Pichon, B.; Piersimoni, A. M.; Pineau,
F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Prša, A.; Pulone, L.;
Racero, E.; Ragaini, S.; Rainer, M.; Ramos, P.; Ramos-Lerate, M.; Re
Fiorentin, P.; Regibo, S.; Richards, P. J.; Rios Diaz, C.; Ripepi, V.;
Riva, A.; Rix, H. -W.; Rixon, G.; Robichon, N.; Robin, A. C.; Robin,
C.; Roelens, M.; Rogues, H. R. O.; Rohrbasser, L.; Romero-Gómez, M.;
Rowell, N.; Royer, F.; Ruz Mieres, D.; Rybicki, K. A.; Sadowski, G.;
Sáez Núñez, A.; Sagristà Sellés, A.; Sahlmann, J.; Salguero, E.;
Samaras, N.; Sanchez Gimenez, V.; Sanna, N.; Santoveña, R.; Sarasso,
M.; Schultheis, M. S.; Sciacca, E.; Segol, M.; Segovia, J. C.;
Ségransan, D.; Semeux, D.; Shahaf, S.; Siddiqui, H. I.; Siebert,
A.; Siltala, L.; Silvelo, A.; Slezak, E.; Slezak, I.; Smart, R. L.;
Snaith, O. N.; Solano, E.; Solitro, F.; Souami, D.; Souchay, J.;
Spagna, A.; Spina, L.; Spoto, F.; Steele, I. A.; Steidelmüller,
H.; Stephenson, C. A.; Süveges, M.; Surdej, J.; Szabados, L.;
Szegedi-Elek, E.; Taris, F.; Taylor, M. B.; Tolomei, L.; Tonello,
N.; Torra, F.; Torra, J.; Torralba Elipe, G.; Trabucchi, M.; Tsounis,
A. T.; Turon, C.; Ulla, A.; Unger, N.; Vaillant, M. V.; van Dillen,
E.; van Reeven, W.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente, D.;
Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zwitter, T.
Bibcode: 2022arXiv220605681G
Altcode:
The Gaia Galactic survey mission is designed and optimized to obtain
astrometry, photometry, and spectroscopy of nearly two billion stars in
our Galaxy. Yet as an all-sky multi-epoch survey, Gaia also observes
several million extragalactic objects down to a magnitude of G~21
mag. Due to the nature of the Gaia onboard selection algorithms,
these are mostly point-source-like objects. Using data provided by
the satellite, we have identified quasar and galaxy candidates via
supervised machine learning methods, and estimate their redshifts using
the low resolution BP/RP spectra. We further characterise the surface
brightness profiles of host galaxies of quasars and of galaxies from
pre-defined input lists. Here we give an overview of the processing
of extragalactic objects, describe the data products in Gaia DR3,
and analyse their properties. Two integrated tables contain the main
results for a high completeness, but low purity (50-70%), set of
6.6 million candidate quasars and 4.8 million candidate galaxies. We
provide queries that select purer sub-samples of these containing 1.9
million probable quasars and 2.9 million probable galaxies (both 95%
purity). We also use high quality BP/RP spectra of 43 thousand high
probability quasars over the redshift range 0.05-4.36 to construct a
composite quasar spectrum spanning restframe wavelengths from 72-100 nm.
Title: Gaia Data Release 3: Reflectance spectra of Solar System
small bodies
Authors: Gaia Collaboration; Galluccio, L.; Delbo, M.; De Angeli, F.;
Pauwels, T.; Tanga, P.; Mignard, F.; Cellino, A.; Brown, A. G. A.;
Muinonen, K.; Penttila, A.; Jordan, S.; Vallenari, A.; Prusti,
T.; de Bruijne, J. H. J.; Arenou, F.; Babusiaux, C.; Biermann, M.;
Creevey, O. L.; Ducourant, C.; Evans, D. W.; Eyer, L.; Guerra, R.;
Hutton, A.; Jordi, C.; Klioner, S. A.; Lammers, U. L.; Lindegren,
L.; Luri, X.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti, P.;
Soubiran, C.; Walton, N. A.; Bailer-Jones, C. A. L.; Bastian, U.;
Drimmel, R.; Jansen, F.; Katz, D.; Lattanzi, M. G.; van Leeuwen, F.;
Bakker, J.; Cacciari, C.; Castaneda, J.; Fabricius, C.; Fouesneau,
M.; Frémat, Y.; Guerrier, A.; Heiter, U.; Masana, E.; Messineo, R.;
Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo,
P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.; Thévenin, F.;
Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann, M.; Andrae, R.;
Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.;
Burgess, P. W.; Busonero, D.; Busso, G.; Cánovas, H.; Carry, B.;
Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.; de Teodoro,
P.; Nunez Campos, M.; Delchambre, L.; Dell Oro, A.; Esquej, P.;
Fernández-Hernández, J.; Fraile, E.; Garabato, D.; García-Lario,
P.; Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.;
Harrison, D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.;
Holl, B.; Janssen, K.; Jevardat de Fombelle, G.; Krone-Martins, A.;
Lanzafame, A. C.; Löffler, W.; Marchal, O.; Marrese, P. M.; Moitinho,
A.; Osborne, P.; Pancino, E.; Recio-Blanco, A.; Reylé, C.; Riello,
M.; Rimoldini, L.; Roegiers, T.; Rybizki, J.; Sarro, L. M.; Siopis,
C.; Smith, M.; Sozzetti, A.; Utrilla, E.; van Leeuwen, M.; Abbas, U.;
Ábrahám, P.; Abreu Aramburu, A.; Aerts, C.; Aguado, J. J.; Ajaj,
M.; Aldea-Montero, F.; Altavilla, G.; Álvarez, M. A.; Alves, J.;
Anderson, R. I.; Anglada Varela, E.; Antoja, T.; Baines, D.; Baker,
S. G.; Balaguer-Núnez, L.; Balbinot, E.; Balog, Z.; Barache, C.;
Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé, S.; Bassilana,
J. -L.; Bauchet, N.; Becciani, U.; Bellazzini, M.; Berihuete, A.;
Bernet, M.; Bertone, S.; Bianchi, L.; Binnenfeld, A.; Blanco-Cuaresma,
S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.;
Bramante, L.; Breedt, E.; Bressan, A.; Brouillet, N.; Brugaletta, E.;
Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carnerero, M. I.; Carrasco, J. M.; Casamiquela, L.; Castellani, M.;
Castro-Ginard, A.; Chaoul, L.; Charlot, P.; Chemin, L.; Chiaramida,
V.; Chiavassa, A.; Chornay, N.; Comoretto, G.; Contursi, G.; Cooper,
W. J.; Cornez, T.; Cowell, S.; Crifo, F.; Cropper, M.; Crosta, M.;
Crowley, C.; Dafonte, C.; Dapergolas, A.; David, P.; de Laverny, P.;
De Luise, F.; De March, R.; De Ridder, J.; de Souza, R.; de Torres,
A.; del Peloso, E. F.; del Pozo, E.; Delgado, A.; Delisle, J. -B.;
Demouchy, C.; Dharmawardena, T. E.; Diakite, S.; Diener, C.; Distefano,
E.; Dolding, C.; Enke, H.; Fabre, C.; Fabrizio, M.; Faigler, S.;
Fedorets, G.; Fernique, P.; Figueras, F.; Fournier, Y.; Fouron, C.;
Fragkoudi, F.; Gai, M.; Garcia-Gutierrez, A.; Garcia-Reinaldos, M.;
García-Torres, M.; Garofalo, A.; Gavel, A.; Gavras, P.; Gerlach,
E.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.;
Gomel, R.; Gomez, A.; González-Núnez, J.; González-Santamaría,
I.; González-Vidal, J. J.; Granvik, M.; Guillout, P.; Guiraud, J.;
Gutiérrez-Sánchez, R.; Guy, L. P.; Hatzidimitriou, D.; Hauser,
M.; Haywood, M.; Helmer, A.; Helmi, A.; Sarmiento, M. H.; Hidalgo,
S. L.; Hadczuk, N.; Hobbs, D.; Holland, G.; Huckle, H. E.; Jardine,
K.; Jasniewicz, G.; Jean-Antoine Piccolo, A.; Jiménez-Arranz, Ó.;
Juaristi Campillo, J.; Julbe, F.; Karbevska, L.; Kervella, P.; Khanna,
S.; Kordopatis, G.; Korn, A. J.; Kospál, A; Kostrzewa-Rutkowska,
Z.; Kruszynska, K.; Kun, M.; Laizeau, P.; Lambert, S.; Lanza,
A. F.; Lasne, Y.; Le Campion, J. -F.; Lebreton, Y.; Lebzelter, T.;
Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao, S.; Licata, E. L.;
Lindstrom, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Lorca,
A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo, A.; Managau, S.;
Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi, M.; Marcos, J.;
Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni, S.; Marocco, F.;
Marshall, D. J.; Polo, L. Martin; Martín-Fleitas, J. M.; Marton, G.;
Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti, A.; Mazeh,
T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Mints,
A.; Molina, D.; Molinaro, R.; Molnár, L.; Monari, G.; Monguió, M.;
Montegriffo, P.; Montero, A.; Mor, R.; Mora, A.; Morbidelli, R.; Morel,
T.; Morris, D.; Muraveva, T.; Murphy, C. P.; Musella, I.; Nagy, Z.;
Noval, L.; Ocana, F.; Ogden, A.; Ordenovic, C.; Osinde, J. O.; Pagani,
C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Pallas-Quintela, L.;
Panahi, A.; Payne-Wardenaar, S.; Penalosa Esteller, X.; Petit, J. -M.;
Pichon, B.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.;
Poggio, E.; Prsa, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rainer, M.;
Raiteri, C. M.; Ramos, P.; Ramos-Lerate, M.; Re Fiorentin, P.; Regibo,
S.; Richards, P. J.; Rios Diaz, C.; Ripepi, V.; Riva, A.; Rix, H. -W.;
Rixon, G.; Robichon, N.; Robin, A. C.; Robin, C.; Roelens, M.; Rogues,
H. R. O.; Rohrbasser, L.; Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruz
Mieres, D.; Rybicki, K. A.; Sadowski, G.; Sáez Núnez, A.; Sagristà
Sellés, A.; Sahlmann, J.; Salguero, E.; Samaras, N.; Sanchez Gimenez,
V.; Sanna, N.; Santovena, R.; Sarasso, M.; Schultheis, M.; Sciacca,
E.; Segol, M.; Segovia, J. C.; Ségransan, D.; Semeux, D.; Shahaf,
S.; Siddiqui, H. I.; Siebert, A.; Siltala, L.; Silvelo, A.; Slezak,
E.; Slezak, I.; Smart, R. L.; Snaith, O. N.; Solano, E.; Solitro,
F.; Souami, D.; Souchay, J.; Spagna, A.; Spina, L.; Spoto, F.;
Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.; Süveges,
M.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Taris, F.; Taylor,
M. B.; Teixeira, R.; Tolomei, L.; Tonello, N.; Torra, F.; Torra, J.;
Torralba Elipe, G.; Trabucchi, M.; Tsounis, A. T.; Turon, C.; Ulla,
A.; Unger, N.; Vaillant, M. V.; van Dillen, E.; van Reeven, W.; Vanel,
O.; Vecchiato, A.; Viala, Y.; Vicente, D.; Voutsinas, S.; Weiler, M.;
Wevers, T.; Wyrzykowski, L.; Yoldas, A.; Yvard, P.; Zhao, H.; Zorec,
J.; Zucker, S.; Zwitter, T.
Bibcode: 2022arXiv220612174G
Altcode:
The Gaia mission of the European Space Agency (ESA) has been routinely
observing Solar System objects (SSOs) since the beginning of its
operations in August 2014. The Gaia data release three (DR3) includes,
for the first time, the mean reflectance spectra of a selected sample of
60 518 SSOs, primarily asteroids, observed between August 5, 2014, and
May 28, 2017. Each reflectance spectrum was derived from measurements
obtained by means of the Blue and Red photometers (BP/RP), which were
binned in 16 discrete wavelength bands. We describe the processing
of the Gaia spectral data of SSOs, explaining both the criteria used
to select the subset of asteroid spectra published in Gaia DR3,
and the different steps of our internal validation procedures. In
order to further assess the quality of Gaia SSO reflectance spectra,
we carried out external validation against SSO reflectance spectra
obtained from ground-based and space-borne telescopes and available
in the literature. For each selected SSO, an epoch reflectance was
computed by dividing the calibrated spectrum observed by the BP/RP
at each transit on the focal plane by the mean spectrum of a solar
analogue. The latter was obtained by averaging the Gaia spectral
measurements of a selected sample of stars known to have very similar
spectra to that of the Sun. Finally, a mean of the epoch reflectance
spectra was calculated in 16 spectral bands for each SSO. The agreement
between Gaia mean reflectance spectra and those available in the
literature is good for bright SSOs, regardless of their taxonomic
spectral class. We identify an increase in the spectral slope of S-type
SSOs with increasing phase angle. Moreover, we show that the spectral
slope increases and the depth of the 1 um absorption band decreases
for increasing ages of S-type asteroid families.
Title: Gaia Data Release 3: A Golden Sample of Astrophysical
Parameters
Authors: Gaia Collaboration; Creevey, O. L.; Sarro, L. M.; Lobel, A.;
Pancino, E.; Andrae, R.; Smart, R. L.; Clementini, G.; Heiter, U.;
Korn, A. J.; Fouesneau, M.; Frémat, Y.; De Angeli, F.; Vallenari, A.;
Harrison, D. L.; Thévenin, F.; Reylé, C.; Sordo, R.; Garofalo, A.;
Brown, A. G. A.; Eyer, L.; Prusti, T.; de Bruijne, J. H. J.; Arenou,
F.; Babusiaux, C.; Biermann, M.; Ducourant, C.; Evans, D. W.; Guerra,
R.; Hutton, A.; Jordi, C.; Klioner, S. A.; Lammers, U. L.; Lindegren,
L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Soubiran, C.; Tanga, P.; Walton, N. A.; Bailer-Jones,
C. A. L.; Bastian, U.; Drimmel, R.; Jansen, F.; Katz, D.; Lattanzi,
M. G.; van Leeuwen, F.; Bakker, J.; Cacciari, C.; Castañeda, J.;
Fabricius, C.; Galluccio, L.; Guerrier, A.; Masana, E.; Messineo, R.;
Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo, P.;
Riclet, F.; Roux, W.; Seabroke, G. M.; Gracia-Abril, G.; Portell, J.;
Teyssier, D.; Altmann, M.; Audard, M.; Bellas-Velidis, I.; Benson,
K.; Berthier, J.; Blomme, R.; Burgess, P. W.; Busonero, D.; Busso,
G.; Cánovas, H.; Carry, B.; Cellino, A.; Cheek, N.; Damerdji, Y.;
Davidson, M.; de Teodoro, P.; Nuñez Campos, M.; Delchambre, L.;
Dell'Oro, A.; Esquej, P.; Fernández-Hernández, J.; Fraile, E.;
Garabato, D.; García-Lario, P.; Gosset, E.; Haigron, R.; Halbwachs,
J. -L.; Hambly, N. C.; Hernández, J.; Hestroffer, D.; Hodgkin,
S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle, G.; Jordan,
S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Marchal, O.;
Marrese, P. M.; Moitinho, A.; Muinonen, K.; Osborne, P.; Pauwels, T.;
Recio-Blanco, A.; Riello, M.; Rimoldini, L.; Roegiers, T.; Rybizki,
J.; Siopis, C.; Smith, M.; Sozzetti, A.; Utrilla, E.; van Leeuwen,
M.; Abbas, U.; Ábrahám, P.; Abreu Aramburu, A.; Aerts, C.; Aguado,
J. J.; Ajaj, M.; Aldea-Montero, F.; Altavilla, G.; Álvarez, M. A.;
Alves, J.; Anders, F.; Anderson, R. I.; Anglada Varela, E.; Antoja, T.;
Baines, D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog,
Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé,
S.; Bassilana, J. -L.; Bauchet, N.; Becciani, U.; Bellazzini, M.;
Berihuete, A.; Bernet, M.; Bertone, S.; Bianchi, L.; Binnenfeld, A.;
Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon,
S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.;
Buzzi, R.; Caffau, E.; Cancelliere, R.; Cantat-Gaudin, T.; Carballo,
R.; Carlucci, T.; Carnerero, M. I.; Carrasco, J. M.; Casamiquela,
L.; Castellani, M.; Castro-Ginard, A.; Chaoul, L.; Charlot, P.;
Chemin, L.; Chiaramida, V.; Chiavassa, A.; Chornay, N.; Comoretto,
G.; Contursi, G.; Cooper, W. J.; Cornez, T.; Cowell, S.; Crifo, F.;
Cropper, M.; Crosta, M.; Crowley, C.; Dafonte, C.; Dapergolas, A.;
David, P.; de Laverny, P.; De Luise, F.; De March, R.; De Ridder, J.;
de Souza, R.; de Torres, A.; del Peloso, E. F.; del Pozo, E.; Delbo,
M.; Delgado, A.; Delisle, J. -B.; Demouchy, C.; Dharmawardena, T. E.;
Di Matteo, P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.;
Enke, H.; Fabre, C.; Fabrizio, M.; Faigler, S.; Fedorets, G.; Fernique,
P.; Figueras, F.; Fournier, Y.; Fouron, C.; Fragkoudi, F.; Gai, M.;
Garcia-Gutierrez, A.; Garcia-Reinaldos, M.; García-Torres, M.; Gavel,
A.; Gavras, P.; Gerlach, E.; Geyer, R.; Giacobbe, P.; Gilmore, G.;
Girona, S.; Giuffrida, G.; Gomel, R.; Gomez, A.; González-Núñez,
J.; González-Santamaría, I.; González-Vidal, J. J.; Granvik, M.;
Guillout, P.; Guiraud, J.; Gutiérrez-Sánchez, R.; Guy, L. P.;
Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Helmer, A.; Helmi,
A.; Sarmiento, M. H.; Hidalgo, S. L.; Hładczuk, N.; Hobbs, D.;
Holland, G.; Huckle, H. E.; Jardine, K.; Jasniewicz, G.; Jean-Antoine
Piccolo, A.; Jiménez-Arranz, Ó.; Juaristi Campillo, J.; Julbe, F.;
Karbevska, L.; Kervella, P.; Khanna, S.; Kordopatis, G.; Kóspál,
Á; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Kun, M.; Laizeau, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Lebreton,
Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao,
S.; Licata, E. L.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.;
Lorca, A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo, A.; Managau,
S.; Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi, M.; Marcos,
J.; Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni, S.; Marocco,
F.; Marshall, D. J.; Polo, L. Martin; Martín-Fleitas, J. M.; Marton,
G.; Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti, A.; Mazeh,
T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Mints,
A.; Molina, D.; Molinaro, R.; Molnár, L.; Monari, G.; Monguió, M.;
Montegriffo, P.; Montero, A.; Mor, R.; Mora, A.; Morbidelli, R.; Morel,
T.; Morris, D.; Muraveva, T.; Murphy, C. P.; Musella, I.; Nagy, Z.;
Noval, L.; Ocaña, F.; Ogden, A.; Ordenovic, C.; Osinde, J. O.; Pagani,
C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Pallas-Quintela, L.;
Panahi, A.; Payne-Wardenaar, S.; Peñalosa Esteller, X.; Penttilä, A.;
Pichon, B.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.;
Poggio, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rainer,
M.; Raiteri, C. M.; Ramos, P.; Ramos-Lerate, M.; Re Fiorentin,
P.; Regibo, S.; Richards, P. J.; Rios Diaz, C.; Ripepi, V.; Riva,
A.; Rix, H. -W.; Rixon, G.; Robichon, N.; Robin, A. C.; Robin, C.;
Roelens, M.; Rogues, H. R. O.; Rohrbasser, L.; Romero-Gómez, M.;
Rowell, N.; Royer, F.; Ruz Mieres, D.; Rybicki, K. A.; Sadowski, G.;
Sáez Núñez, A.; Sagristà Sellés, A.; Sahlmann, J.; Salguero,
E.; Samaras, N.; Sanchez Gimenez, V.; Sanna, N.; Santoveña, R.;
Sarasso, M.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.;
Ségransan, D.; Semeux, D.; Shahaf, S.; Siddiqui, H. I.; Siebert,
A.; Siltala, L.; Silvelo, A.; Slezak, E.; Slezak, I.; Snaith, O. N.;
Solano, E.; Solitro, F.; Souami, D.; Souchay, J.; Spagna, A.; Spina,
L.; Spoto, F.; Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.;
Süveges, M.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Taris,
F.; Taylor, M. B.; Teixeira, R.; Tolomei, L.; Tonello, N.; Torra,
F.; Torra, J.; Torralba Elipe, G.; Trabucchi, M.; Tsounis, A. T.;
Turon, C.; Ulla, A.; Unger, N.; Vaillant, M. V.; van Dillen, E.;
van Reeven, W.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente, D.;
Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zwitter, T.
Bibcode: 2022arXiv220605870G
Altcode:
Gaia Data Release 3 (DR3) provides a wealth of new data products for the
astronomical community to exploit, including astrophysical parameters
for a half billion stars. In this work we demonstrate the high
quality of these data products and illustrate their use in different
astrophysical contexts. We query the astrophysical parameter tables
along with other tables in Gaia DR3 to derive the samples of the stars
of interest. We validate our results by using the Gaia catalogue itself
and by comparison with external data. We have produced six homogeneous
samples of stars with high quality astrophysical parameters across
the HR diagram for the community to exploit. We first focus on three
samples that span a large parameter space: young massive disk stars
(~3M), FGKM spectral type stars (~3M), and UCDs (~20K). We provide
these sources along with additional information (either a flag or
complementary parameters) as tables that are made available in the
Gaia archive. We furthermore identify 15740 bone fide carbon stars,
5863 solar-analogues, and provide the first homogeneous set of stellar
parameters of the Spectro Photometric Standard Stars. We use a subset
of the OBA sample to illustrate its usefulness to analyse the Milky
Way rotation curve. We then use the properties of the FGKM stars to
analyse known exoplanet systems. We also analyse the ages of some
unseen UCD-companions to the FGKM stars. We additionally predict the
colours of the Sun in various passbands (Gaia, 2MASS, WISE) using the
solar-analogue sample.
Title: Gaia Data Release 3: Hot-star radial velocities
Authors: Blomme, R.; Fremat, Y.; Sartoretti, P.; Guerrier, A.; Panuzzo,
P.; Katz, D.; Seabroke, G. M.; Thevenin, F.; Cropper, M.; Benson, K.;
Damerdji, Y.; Haigron, R.; Marchal, O.; Smith, M.; Baker, S.; Chemin,
L.; David, M.; Dolding, C.; Gosset, E.; Janssen, K.; Jasniewicz, G.;
Lobel, A.; Plum, G.; Samaras, N.; Snaith, O.; Soubiran, C.; Vanel,
O.; Zwitter, T.; Brouillet, N.; Caffau, E.; Crifo, F.; Fabre, C.;
Frakgoudi, F.; Huckle, H. E.; Jean-Antoine Piccolo, A.; Lasne, Y.;
Leclerc, N.; Mastrobuono-Battisti, A.; Royer, F.; Viala, Y.; Zorec, J.
Bibcode: 2022arXiv220605486B
Altcode:
The second Gaia data release, DR2, contained radial velocities of stars
with effective temperatures up to Teff = 6900 K. The third data release,
Gaia DR3, extends this up to Teff = 14,500 K. We derive the radial
velocities for hot stars (i.e. in the Teff = 6900 - 14,500 K range)
from data obtained with the Radial Velocity Spectrometer (RVS) on board
Gaia. The radial velocities were determined by the standard technique
of measuring the Doppler shift of a template spectrum that was compared
to the observed spectrum. The RVS wavelength range is very limited. The
proximity to and systematic blueward offset of the calcium infrared
triplet to the hydrogen Paschen lines in hot stars can result in a
systematic offset in radial velocity. For the hot stars, we developed
a specific code to improve the selection of the template spectrum,
thereby avoiding this systematic offset. With the improved code, and
with the correction we propose to the DR3 archive radial velocities,
we obtain values that agree with reference values to within 3 km/s (in
median). Because of the required S/N for applying the improved code,
the hot star radial velocities in DR3 are mostly limited to stars with
a magnitude in the RVS wavelength band <= 12 mag.
Title: Gaia Data Release 3 Properties and validation of the radial
velocities
Authors: Katz, D.; Sartoretti, P.; Guerrier, A.; Panuzzo, P.; Seabroke,
G. M.; Thévenin, F.; Cropper, M.; Benson, K.; Blomme, R.; Haigron,
R.; Marchal, O.; Smith, M.; Baker, S.; Chemin, L.; Damerdji, Y.; David,
M.; Dolding, C.; Frémat, Y.; Gosset, E.; Janßen, K.; Jasniewicz, G.;
Lobel, A.; Plum, G.; Samaras, N.; Snaith, O.; Soubiran, C.; Vanel,
O.; Zwitter, T.; Antoja, T.; Arenou, F.; Babusiaux, C.; Brouillet,
N.; Caffau, E.; Di Matteo, P.; Fabre, C.; Fabricius, C.; Frakgoudi,
F.; Haywood, M.; Huckle, H. E.; Hottier, C.; Lasne, Y.; Leclerc, N.;
Mastrobuono-Battisti, A.; Royer, F.; Teyssier, D.; Zorec, J.; Crifo,
F.; Jean-Antoine Piccolo, A.; Turon, C.; Viala, Y.
Bibcode: 2022arXiv220605902K
Altcode:
Gaia Data Release 3 (Gaia DR3) contains the second release of the
combined radial velocities. It is based on the spectra collected during
the first 34 months of the nominal mission. The longer time baseline
and the improvements of the pipeline made it possible to push the
processing limit, from Grvs = 12 in Gaia DR2, to Grvs = 14 mag. In this
article, we describe the new functionalities implemented for Gaia DR3,
the quality filters applied during processing and post-processing and
the properties and performance of the published velocities. For Gaia
DR3, several functionalities were upgraded or added. (Abridged) Gaia
DR3 contains the combined radial velocities of 33 812 183 stars. With
respect to Gaia DR2, the interval of temperature has been expanded
from Teff \in [3600, 6750] K to Teff \in [3100, 14500] K for the
bright stars ( Grvs \leq 12 mag) and [3100, 6750] K for the fainter
stars. The radial velocities sample a significant part of the Milky
Way: they reach a few kilo-parsecs beyond the Galactic centre in the
disc and up to about 10-15 kpc vertically into the inner halo. The
median formal precision of the velocities is of 1.3 km/s at Grvs =
12 and 6.4 km/s at Grvs = 14 mag. The velocity zero point exhibits a
small systematic trend with magnitude starting around Grvs = 11 mag
and reaching about 400 m/s at Grvs = 14 mag. A correction formula
is provided, which can be applied to the published data. The Gaia
DR3 velocity scale is in satisfactory agreement with APOGEE, GALAH,
GES and RAVE, with systematic differences that mostly do not exceed
a few hundreds m/s. The properties of the radial velocities are also
illustrated with specific objects: open clusters, globular clusters as
well as the Large Magellanic Cloud (LMC). For example, the precision
of the data allows to map the line-of-sight rotational velocities of
the globular cluster 47 Tuc and of the LMC.
Title: Gaia Data Release 3: Pulsations in main sequence OBAF-type
stars
Authors: Gaia Collaboration; De Ridder, J.; Ripepi, V.; Aerts, C.;
Palaversa, L.; Eyer, L.; Holl, B.; Audard, M.; Rimoldini, L.; Brown,
A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Arenou, F.;
Babusiaux, C.; Biermann, M.; Creevey, O. L.; Ducourant, C.; Evans,
D. W.; Guerra, R.; Hutton, A.; Jordi, C.; Klioner, S. A.; Lammers,
U. L.; Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix,
D.; Randich, S.; Sartoretti, P.; Soubiran, C.; Tanga, P.; Walton,
N. A.; Bailer-Jones, C. A. L.; Bastian, U.; Drimmel, R.; Jansen, F.;
Katz, D.; Lattanzi, M. G.; van Leeuwen, F.; Bakker, J.; Cacciari, C.;
Castañeda, J.; De Angeli, F.; Fabricius, C.; Fouesneau, M.; Frémat,
Y.; Galluccio, L.; Guerrier, A.; Heiter, U.; Masana, E.; Messineo,
R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo,
P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.; Thévenin, F.;
Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann, M.; Andrae, R.;
Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.; Burgess,
P. W.; Busonero, D.; Busso, G.; Cánovas, H.; Carry, B.; Cellino, A.;
Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.; de Teodoro,
P.; Nuñez Campos, M.; Delchambre, L.; Dell'Oro, A.; Esquej, P.;
Fernández-Hernández, J.; Fraile, E.; Garabato, D.; García-Lario, P.;
Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hilger, T.; Hodgkin, S. T.;
Janßen, K.; Jevardat de Fombelle, G.; Jordan, S.; Krone-Martins, A.;
Lanzafame, A. C.; Löffler, W.; Marchal, O.; Marrese, P. M.; Moitinho,
A.; Muinonen, K.; Osborne, P.; Pancino, E.; Pauwels, T.; Recio-Blanco,
A.; Reylé, C.; Riello, M.; Roegiers, T.; Rybizki, J.; Sarro, L. M.;
Siopis, C.; Smith, M.; Sozzetti, A.; Utrilla, E.; van Leeuwen, M.;
Abbas, U.; Ábrahám, P.; Abreu Aramburu, A.; Aguado, J. J.; Ajaj,
M.; Aldea-Montero, F.; Altavilla, G.; Álvarez, M. A.; Alves, J.;
Anders, F.; Anderson, R. I.; Anglada Varela, E.; Antoja, T.; Baines,
D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog, Z.;
Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé,
S.; Bassilana, J. -L.; Bauchet, N.; Becciani, U.; Bellazzini, M.;
Berihuete, A.; Bernet, M.; Bertone, S.; Bianchi, L.; Binnenfeld, A.;
Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon,
S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.;
Buzzi, R.; Caffau, E.; Cancelliere, R.; Cantat-Gaudin, T.; Carballo,
R.; Carlucci, T.; Carnerero, M. I.; Carrasco, J. M.; Casamiquela,
L.; Castellani, M.; Castro-Ginard, A.; Chaoul, L.; Charlot, P.;
Chemin, L.; Chiaramida, V.; Chiavassa, A.; Chornay, N.; Comoretto,
G.; Contursi, G.; Cooper, W. J.; Cornez, T.; Cowell, S.; Crifo, F.;
Cropper, M.; Crosta, M.; Crowley, C.; Dafonte, C.; Dapergolas, A.;
David, P.; de Laverny, P.; De Luise, F.; De March, R.; de Souza, R.;
de Torres, A.; del Peloso, E. F.; del Pozo, E.; Delbo, M.; Delgado,
A.; Delisle, J. -B.; Demouchy, C.; Dharmawardena, T. E.; Diakite,
S.; Diener, C.; Distefano, E.; Dolding, C.; Enke, H.; Fabre, C.;
Fabrizio, M.; Faigler, S.; Fedorets, G.; Fernique, P.; Figueras, F.;
Fournier, Y.; Fouron, C.; Fragkoudi, F.; Gai, M.; Garcia-Gutierrez,
A.; Garcia-Reinaldos, M.; García-Torres, M.; Garofalo, A.; Gavel,
A.; Gavras, P.; Gerlach, E.; Geyer, R.; Giacobbe, P.; Gilmore, G.;
Girona, S.; Giuffrida, G.; Gomel, R.; Gomez, A.; González-Núñez,
J.; González-Santamaría, I.; González-Vidal, J. J.; Granvik,
M.; Guillout, P.; Guiraud, J.; Gutiérrez-Sánchez, R.; Guy, L. P.;
Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Helmer, A.; Helmi, A.;
Sarmiento, M. H.; Hidalgo, S. L.; Hładczuk, N.; Hobbs, D.; Holland,
G.; Huckle, H. E.; Jardine, K.; Jasniewicz, G.; Jean-Antoine Piccolo,
A.; Jiménez-Arranz, Ó.; Juaristi Campillo, J.; Julbe, F.; Karbevska,
L.; Kervella, P.; Khanna, S.; Kordopatis, G.; Korn, A. J.; Kóspál,
Á; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Kun, M.; Laizeau, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Lebreton,
Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao,
S.; Licata, E. L.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.;
Lobel, A.; Lorca, A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo,
A.; Managau, S.; Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi,
M.; Marcos, J.; Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni, S.;
Marocco, F.; Marshall, D. J.; Polo, L. Martin; Martín-Fleitas, J. M.;
Marton, G.; Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti, A.;
Mazeh, T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.;
Mints, A.; Molina, D.; Molinaro, R.; Molnár, L.; Monari, G.; Monguió,
M.; Montegriffo, P.; Montero, A.; Mor, R.; Mora, A.; Morbidelli,
R.; Morel, T.; Morris, D.; Muraveva, T.; Murphy, C. P.; Musella, I.;
Nagy, Z.; Noval, L.; Ocaña, F.; Ogden, A.; Ordenovic, C.; Osinde,
J. O.; Pagani, C.; Pagano, I.; Palicio, P. A.; Pallas-Quintela, L.;
Panahi, A.; Payne-Wardenaar, S.; Peñalosa Esteller, X.; Penttilä, A.;
Pichon, B.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.;
Poggio, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rainer, M.;
Raiteri, C. M.; Ramos, P.; Ramos-Lerate, M.; Re Fiorentin, P.; Regibo,
S.; Richards, P. J.; Rios Diaz, C.; Riva, A.; Rix, H. -W.; Rixon, G.;
Robichon, N.; Robin, A. C.; Robin, C.; Roelens, M.; Rogues, H. R. O.;
Rohrbasser, L.; Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruz Mieres,
D.; Rybicki, K. A.; Sadowski, G.; Sáez Núñez, A.; Sagristà Sellés,
A.; Sahlmann, J.; Salguero, E.; Samaras, N.; Sanchez Gimenez, V.;
Sanna, N.; Santoveña, R.; Sarasso, M.; Schultheis, M.; Sciacca, E.;
Segol, M.; Segovia, J. C.; Ségransan, D.; Semeux, D.; Shahaf, S.;
Siddiqui, H. I.; Siebert, A.; Siltala, L.; Silvelo, A.; Slezak, E.;
Slezak, I.; Smart, R. L.; Snaith, O. N.; Solano, E.; Solitro, F.;
Souami, D.; Souchay, J.; Spagna, A.; Spina, L.; Spoto, F.; Steele,
I. A.; Steidelmüller, H.; Stephenson, C. A.; Süveges, M.; Surdej, J.;
Szabados, L.; Szegedi-Elek, E.; Taris, F.; Taylor, M. B.; Teixeira,
R.; Tolomei, L.; Tonello, N.; Torra, F.; Torra, J.; Torralba Elipe,
G.; Trabucchi, M.; Tsounis, A. T.; Turon, C.; Ulla, A.; Unger, N.;
Vaillant, M. V.; van Dillen, E.; van Reeven, W.; Vanel, O.; Vecchiato,
A.; Viala, Y.; Vicente, D.; Voutsinas, S.; Weiler, M.; Wevers, T.;
Wyrzykowski, Ł.; Yoldas, A.; Yvard, P.; Zhao, H.; Zorec, J.; Zucker,
S.; Zwitter, T.
Bibcode: 2022arXiv220606075G
Altcode:
The third Gaia data release provides photometric time series covering
34 months for about 10 million stars. For many of those stars, a
characterisation in Fourier space and their variability classification
are also provided. This paper focuses on intermediate- to high-mass
(IHM) main sequence pulsators M >= 1.3 Msun) of spectral types O,
B, A, or F, known as beta Cep, slowly pulsating B (SPB), delta Sct,
and gamma Dor stars. These stars are often multi-periodic and display
low amplitudes, making them challenging targets to analyse with sparse
time series. All datasets used in this analysis are part of the Gaia DR3
data release. The photometric time series were used to perform a Fourier
analysis, while the global astrophysical parameters necessary for
the empirical instability strips were taken from the Gaia DR3 gspphot
tables, and the vsini data were taken from the Gaia DR3 esphs tables. We
show that for nearby OBAF-type pulsators, the Gaia DR3 data are
precise and accurate enough to pinpoint them in the Hertzsprung-Russell
diagram. We find empirical instability strips covering broader regions
than theoretically predicted. In particular, our study reveals the
presence of fast rotating gravity-mode pulsators outside the strips,
as well as the co-existence of rotationally modulated variables inside
the strips as reported before in the literature. We derive an extensive
period-luminosity relation for delta Sct stars and provide evidence that
the relation features different regimes depending on the oscillation
period. Finally, we demonstrate how stellar rotation attenuates the
amplitude of the dominant oscillation mode of delta Sct stars.
Title: Gaia Data Release 3: Stellar multiplicity, a teaser for the
hidden treasure
Authors: Gaia Collaboration; Arenou, F.; Babusiaux, C.; Barstow,
M. A.; Faigler, S.; Jorissen, A.; Kervella, P.; Mazeh, T.; Mowlavi,
N.; Panuzzo, P.; Sahlmann, J.; Shahaf, S.; Sozzetti, A.; Bauchet, N.;
Damerdji, Y.; Gavras, P.; Giacobbe, P.; Gosset, E.; Halbwachs, J. -L.;
Holl, B.; Lattanzi, M. G.; Leclerc, N.; Morel, T.; Pourbaix, D.; Re
Fiorentin, P.; Sadowski, G.; Ségransan, D.; Siopis, C.; Teyssier, D.;
Zwitter, T.; Planquart, L.; Brown, A. G. A.; Vallenari, A.; Prusti,
T.; de Bruijne, J. H. J.; Biermann, M.; Creevey, O. L.; Ducourant, C.;
Evans, D. W.; Eyer, L.; Guerra, R.; Hutton, A.; Jordi, C.; Klioner,
S. A.; Lammers, U. L.; Lindegren, L.; Luri, X.; Mignard, F.; Panem,
C.; Randich, S.; Sartoretti, P.; Soubiran, C.; Tanga, P.; Walton,
N. A.; Bailer-Jones, C. A. L.; Bastian, U.; Drimmel, R.; Jansen, F.;
Katz, D.; van Leeuwen, F.; Bakker, J.; Cacciari, C.; Castañeda, J.;
De Angeli, F.; Fabricius, C.; Fouesneau, M.; Frémat, Y.; Galluccio,
L.; Guerrier, A.; Heiter, U.; Masana, E.; Messineo, R.; Nicolas,
C.; Nienartowicz, K.; Pailler, F.; Riclet, F.; Roux, W.; Seabroke,
G. M.; Sordo, R.; Thévenin, F.; Gracia-Abril, G.; Portell, J.;
Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson,
K.; Berthier, J.; Blomme, R.; Burgess, P. W.; Busonero, D.; Busso,
G.; Cánovas, H.; Carry, B.; Cellino, A.; Cheek, N.; Clementini,
G.; Davidson, M.; de Teodoro, P.; Nuñez Campos, M.; Delchambre,
L.; Dell'Oro, A.; Esquej, P.; Fernández-Hernández, J.; Fraile,
E.; Garabato, D.; García-Lario, P.; Haigron, R.; Hambly, N. C.;
Harrison, D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.;
Janßen, K.; Jevardat de Fombelle, G.; Jordan, S.; Krone-Martins,
A.; Lanzafame, A. C.; Löffler, W.; Marchal, O.; Marrese, P. M.;
Moitinho, A.; Muinonen, K.; Osborne, P.; Pancino, E.; Pauwels, T.;
Recio-Blanco, A.; Reylé, C.; Riello, M.; Rimoldini, L.; Roegiers,
T.; Rybizki, J.; Sarro, L. M.; Smith, M.; Utrilla, E.; van Leeuwen,
M.; Abbas, U.; Ábrahám, P.; Abreu Aramburu, A.; Aerts, C.; Aguado,
J. J.; Ajaj, M.; Aldea-Montero, F.; Altavilla, G.; Álvarez, M. A.;
Alves, J.; Anders, F.; Anderson, R. I.; Anglada Varela, E.; Antoja, T.;
Baines, D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog,
Z.; Barache, C.; Barbato, D.; Barros, M.; Bartolomé, S.; Bassilana,
J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.; Bernet, M.;
Bertone, S.; Bianchi, L.; Binnenfeld, A.; Blanco-Cuaresma, S.; Blazere,
A.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.;
Bramante, L.; Breedt, E.; Bressan, A.; Brouillet, N.; Brugaletta, E.;
Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carnerero, M. I.; Carrasco, J. M.; Casamiquela, L.; Castellani, M.;
Castro-Ginard, A.; Chaoul, L.; Charlot, P.; Chemin, L.; Chiaramida,
V.; Chiavassa, A.; Chornay, N.; Comoretto, G.; Contursi, G.; Cooper,
W. J.; Cornez, T.; Cowell, S.; Crifo, F.; Cropper, M.; Crosta, M.;
Crowley, C.; Dafonte, C.; Dapergolas, A.; David, P.; de Laverny, P.;
De Luise, F.; De March, R.; De Ridder, J.; de Souza, R.; de Torres,
A.; del Peloso, E. F.; del Pozo, E.; Delbo, M.; Delgado, A.; Delisle,
J. -B.; Demouchy, C.; Dharmawardena, T. E.; Diakite, S.; Diener,
C.; Distefano, E.; Dolding, C.; Enke, H.; Fabre, C.; Fabrizio, M.;
Fedorets, G.; Fernique, P.; Figueras, F.; Fournier, Y.; Fouron, C.;
Fragkoudi, F.; Gai, M.; Garcia-Gutierrez, A.; Garcia-Reinaldos, M.;
García-Torres, M.; Garofalo, A.; Gavel, A.; Gerlach, E.; Geyer,
R.; Gilmore, G.; Girona, S.; Giuffrida, G.; Gomel, R.; Gomez, A.;
González-Núñez, J.; González-Santamaría, I.; González-Vidal,
J. J.; Granvik, M.; Guillout, P.; Guiraud, J.; Gutiérrez-Sánchez, R.;
Guy, L. P.; Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Helmer, A.;
Helmi, A.; Sarmiento, M. H.; Hidalgo, S. L.; Hładczuk, N.; Hobbs, D.;
Holland, G.; Huckle, H. E.; Jardine, K.; Jasniewicz, G.; Jean-Antoine
Piccolo, A.; Jiménez-Arranz, Ó.; Juaristi Campillo, J.; Julbe, F.;
Karbevska, L.; Khanna, S.; Kordopatis, G.; Korn, A. J.; Kóspál,
Á; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Kun, M.; Laizeau, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Lebreton, Y.;
Lebzelter, T.; Leccia, S.; Lecoeur-Taibi, I.; Liao, S.; Licata, E. L.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Lorca,
A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo, A.; Managau, S.;
Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi, M.; Marcos, J.;
Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni, S.; Marocco, F.;
Marshall, D. J.; Polo, L. Martin; Martín-Fleitas, J. M.; Marton, G.;
Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti, A.; McMillan,
P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.; Molina, D.;
Molinaro, R.; Molnár, L.; Monari, G.; Monguió, M.; Montegriffo, P.;
Montero, A.; Mor, R.; Mora, A.; Morbidelli, R.; Morris, D.; Muraveva,
T.; Murphy, C. P.; Musella, I.; Nagy, Z.; Noval, L.; Ocaña, F.; Ogden,
A.; Ordenovic, C.; Osinde, J. O.; Pagani, C.; Pagano, I.; Palaversa,
L.; Palicio, P. A.; Pallas-Quintela, L.; Panahi, A.; Payne-Wardenaar,
S.; Peñalosa Esteller, X.; Penttilä, A.; Pichon, B.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Prša, A.;
Pulone, L.; Racero, E.; Ragaini, S.; Rainer, M.; Raiteri, C. M.; Ramos,
P.; Ramos-Lerate, M.; Regibo, S.; Richards, P. J.; Rios Diaz, C.;
Ripepi, V.; Riva, A.; Rix, H. -W.; Rixon, G.; Robichon, N.; Robin,
A. C.; Robin, C.; Roelens, M.; Rogues, H. R. O.; Rohrbasser, L.;
Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruz Mieres, D.; Rybicki,
K. A.; Sáez Núñez, A.; Sagristà Sellés, A.; Salguero, E.; Samaras,
N.; Sanchez Gimenez, V.; Sanna, N.; Santoveña, R.; Sarasso, M.;
Schultheis, M. S.; Sciacca, E.; Segol, M.; Segovia, J. C.; Semeux,
D.; Siddiqui, H. I.; Siebert, A.; Siltala, L.; Silvelo, A.; Slezak,
E.; Slezak, I.; Smart, R. L.; Snaith, O. N.; Solano, E.; Solitro,
F.; Souami, D.; Souchay, J.; Spagna, A.; Spina, L.; Spoto, F.;
Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.; Süveges,
M.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Taris, F.; Taylor,
M. B.; Teixeira, R.; Tolomei, L.; Tonello, N.; Torra, F.; Torra, J.;
Torralba Elipe, G.; Trabucchi, M.; Tsounis, A. T.; Turon, C.; Ulla,
A.; Unger, N.; Vaillant, M. V.; van Dillen, E.; van Reeven, W.; Vanel,
O.; Vecchiato, A.; Viala, Y.; Vicente, D.; Voutsinas, S.; Weiler,
M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Yvard, P.; Zhao, H.;
Zorec, J.; Zucker, S.
Bibcode: 2022arXiv220605595G
Altcode:
The Gaia DR3 Catalogue contains for the first time about eight
hundred thousand solutions with either orbital elements or trend
parameters for astrometric, spectroscopic and eclipsing binaries, and
combinations of them. This paper aims to illustrate the huge potential
of this large non-single star catalogue. Using the orbital solutions
together with models of the binaries, a catalogue of tens of thousands
of stellar masses, or lower limits, partly together with consistent
flux ratios, has been built. Properties concerning the completeness
of the binary catalogues are discussed, statistical features of the
orbital elements are explained and a comparison with other catalogues
is performed. Illustrative applications are proposed for binaries
across the H-R diagram. The binarity is studied in the RGB/AGB and a
search for genuine SB1 among long-period variables is performed. The
discovery of new EL CVn systems illustrates the potential of combining
variability and binarity catalogues. Potential compact object companions
are presented, mainly white dwarf companions or double degenerates,
but one candidate neutron star is also presented. Towards the bottom of
the main sequence, the orbits of previously-suspected binary ultracool
dwarfs are determined and new candidate binaries are discovered. The
long awaited contribution of Gaia to the analysis of the substellar
regime shows the brown dwarf desert around solar-type stars using true,
rather than minimum, masses, and provides new important constraints on
the occurrence rates of substellar companions to M dwarfs. Several
dozen new exoplanets are proposed, including two with validated
orbital solutions and one super-Jupiter orbiting a white dwarf, all
being candidates requiring confirmation. Beside binarity, higher order
multiple systems are also found.
Title: Gaia Data Release 3: Chemical cartography of the Milky Way
Authors: Gaia Collaboration; Recio-Blanco, A.; Kordopatis, G.; de
Laverny, P.; Palicio, P. A.; Spagna, A.; Spina, L.; Katz, D.; Re
Fiorentin, P.; Poggio, E.; McMillan, P. J.; Vallenari, A.; Lattanzi,
M. G.; Seabroke, G. M.; Casamiquela, L.; Bragaglia, A.; Antoja,
T.; Bailer-Jones, C. A. L.; Andrae, R.; Fouesneau, M.; Cropper, M.;
Cantat-Gaudin, T.; Heiter, U.; Bijaoui, A.; Brown, A. G. A.; Prusti,
T.; de Bruijne, J. H. J.; Arenou, F.; Babusiaux, C.; Biermann, M.;
Creevey, O. L.; Ducourant, C.; Evans, D. W.; Eyer, L.; Guerra, R.;
Hutton, A.; Jordi, C.; Klioner, S. A.; Lammers, U. L.; Lindegren,
L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Soubiran, C.; Tanga, P.; Walton, N. A.; Bastian, U.;
Drimmel, R.; Jansen, F.; van Leeuwen, F.; Bakker, J.; Cacciari, C.;
Castañeda, J.; De Angeli, F.; Fabricius, C.; Frémat, Y.; Galluccio,
L.; Guerrier, A.; Masana, E.; Messineo, R.; Mowlavi, N.; Nicolas,
C.; Nienartowicz, K.; Pailler, F.; Panuzzo, P.; Riclet, F.; Roux, W.;
Sordo, R.; Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier, D.;
Altmann, M.; Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier,
J.; Blomme, R.; Burgess, P. W.; Busonero, D.; Busso, G.; Cánovas,
H.; Carry, B.; Cellino, A.; Cheek, N.; Clementini, G.; Damerdji,
Y.; Davidson, M.; de Teodoro, P.; Nuñez Campos, M.; Delchambre,
L.; Dell'Oro, A.; Esquej, P.; Fernández-Hernández, J.; Fraile, E.;
Garabato, D.; García-Lario, P.; Gosset, E.; Haigron, R.; Halbwachs,
J. -L.; Hambly, N. C.; Harrison, D. L.; Hernández, J.; Hestroffer,
D.; Hodgkin, S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle, G.;
Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Marchal,
O.; Marrese, P. M.; Moitinho, A.; Muinonen, K.; Osborne, P.; Pancino,
E.; Pauwels, T.; Reylé, C.; Riello, M.; Rimoldini, L.; Roegiers,
T.; Rybizki, J.; Sarro, L. M.; Siopis, C.; Smith, M.; Sozzetti,
A.; Utrilla, E.; van Leeuwen, M.; Abbas, U.; Ábrahám, P.; Abreu
Aramburu, A.; Aerts, C.; Aguado, J. J.; Ajaj, M.; Aldea-Montero, F.;
Altavilla, G.; Álvarez, M. A.; Alves, J.; Anders, F.; Anderson, R. I.;
Anglada Varela, E.; Baines, D.; Baker, S. G.; Balaguer-Núñez, L.;
Balbinot, E.; Balog, Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow,
M. A.; Bartolomé, S.; Bassilana, J. -L.; Bauchet, N.; Becciani, U.;
Bellazzini, M.; Berihuete, A.; Bernet, M.; Bertone, S.; Bianchi, L.;
Binnenfeld, A.; Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini,
D.; Bouquillon, S.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.;
Buzzi, R.; Caffau, E.; Cancelliere, R.; Carballo, R.; Carlucci, T.;
Carnerero, M. I.; Carrasco, J. M.; Castellani, M.; Castro-Ginard,
A.; Chaoul, L.; Charlot, P.; Chemin, L.; Chiaramida, V.; Chiavassa,
A.; Chornay, N.; Comoretto, G.; Contursi, G.; Cooper, W. J.; Cornez,
T.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Dafonte, C.;
Dapergolas, A.; David, P.; De Luise, F.; De March, R.; De Ridder,
J.; de Souza, R.; de Torres, A.; del Peloso, E. F.; del Pozo, E.;
Delbo, M.; Delgado, A.; Delisle, J. -B.; Demouchy, C.; Dharmawardena,
T. E.; Di Matteo, P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding,
C.; Edvardsson, B.; Enke, H.; Fabre, C.; Fabrizio, M.; Faigler, S.;
Fedorets, G.; Fernique, P.; Figueras, F.; Fournier, Y.; Fouron, C.;
Fragkoudi, F.; Gai, M.; Garcia-Gutierrez, A.; Garcia-Reinaldos, M.;
García-Torres, M.; Garofalo, A.; Gavel, A.; Gavras, P.; Gerlach,
E.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.;
Gomel, R.; Gomez, A.; González-Núñez, J.; González-Santamaría,
I.; González-Vidal, J. J.; Granvik, M.; Guillout, P.; Guiraud, J.;
Gutiérrez-Sánchez, R.; Guy, L. P.; Hatzidimitriou, D.; Hauser,
M.; Haywood, M.; Helmer, A.; Helmi, A.; Sarmiento, M. H.; Hidalgo,
S. L.; Hładczuk, N.; Hobbs, D.; Holland, G.; Huckle, H. E.; Jardine,
K.; Jasniewicz, G.; Jean-Antoine Piccolo, A.; Jiménez-Arranz,
Ó.; Juaristi Campillo, J.; Julbe, F.; Karbevska, L.; Kervella,
P.; Khanna, S.; Korn, A. J.; Kóspál, Á; Kostrzewa-Rutkowska,
Z.; Kruszyńska, K.; Kun, M.; Laizeau, P.; Lambert, S.; Lanza,
A. F.; Lasne, Y.; Le Campion, J. -F.; Lebreton, Y.; Lebzelter, T.;
Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao, S.; Licata, E. L.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Lorca,
A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo, A.; Managau, S.;
Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi, M.; Marcos, J.;
Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni, S.; Marocco, F.;
Marshall, D. J.; Polo, L. Martin; Martín-Fleitas, J. M.; Marton, G.;
Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti, A.; Mazeh,
T.; Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.; Molina, D.;
Molinaro, R.; Molnár, L.; Monari, G.; Monguió, M.; Montegriffo, P.;
Montero, A.; Mor, R.; Mora, A.; Morbidelli, R.; Morel, T.; Morris, D.;
Muraveva, T.; Murphy, C. P.; Musella, I.; Nagy, Z.; Noval, L.; Ocaña,
F.; Ogden, A.; Ordenovic, C.; Osinde, J. O.; Pagani, C.; Pagano, I.;
Palaversa, L.; Pallas-Quintela, L.; Panahi, A.; Payne-Wardenaar, S.;
Peñalosa Esteller, X.; Penttilä, A.; Pichon, B.; Piersimoni, A. M.;
Pineau, F. -X.; Plachy, E.; Plum, G.; Prša, A.; Pulone, L.; Racero,
E.; Ragaini, S.; Rainer, M.; Raiteri, C. M.; Ramos, P.; Ramos-Lerate,
M.; Regibo, S.; Richards, P. J.; Rios Diaz, C.; Ripepi, V.; Riva,
A.; Rix, H. -W.; Rixon, G.; Robichon, N.; Robin, A. C.; Robin, C.;
Roelens, M.; Rogues, H. R. O.; Rohrbasser, L.; Romero-Gómez, M.;
Rowell, N.; Royer, F.; Ruz Mieres, D.; Rybicki, K. A.; Sadowski, G.;
Sáez Núñez, A.; Sagristà Sellés, A.; Sahlmann, J.; Salguero,
E.; Samaras, N.; Sanchez Gimenez, V.; Sanna, N.; Santoveña, R.;
Sarasso, M.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.;
Ségransan, D.; Semeux, D.; Shahaf, S.; Siddiqui, H. I.; Siebert,
A.; Siltala, L.; Silvelo, A.; Slezak, E.; Slezak, I.; Smart, R. L.;
Snaith, O. N.; Solano, E.; Solitro, F.; Souami, D.; Souchay, J.;
Spoto, F.; Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.;
Süveges, M.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Taris,
F.; Taylor, M. B.; Teixeira, R.; Tolomei, L.; Tonello, N.; Torra,
F.; Torra, J.; Torralba Elipe, G.; Trabucchi, M.; Tsounis, A. T.;
Turon, C.; Ulla, A.; Unger, N.; Vaillant, M. V.; van Dillen, E.;
van Reeven, W.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente, D.;
Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zwitter, T.
Bibcode: 2022arXiv220605534G
Altcode:
Gaia DR3 opens a new era of all-sky spectral analysis of stellar
populations thanks to the nearly 5.6 million stars observed by the RVS
and parametrised by the GSP-spec module. The all-sky Gaia chemical
cartography allows a powerful and precise chemo-dynamical view of
the Milky Way with unprecedented spatial coverage and statistical
robustness. First, it reveals the strong vertical symmetry of the
Galaxy and the flared structure of the disc. Second, the observed
kinematic disturbances of the disc -- seen as phase space correlations
-- and kinematic or orbital substructures are associated with chemical
patterns that favour stars with enhanced metallicities and lower
[alpha/Fe] abundance ratios compared to the median values in the radial
distributions. This is detected both for young objects that trace the
spiral arms and older populations. Several alpha, iron-peak elements
and at least one heavy element trace the thin and thick disc properties
in the solar cylinder. Third, young disc stars show a recent chemical
impoverishment in several elements. Fourth, the largest chemo-dynamical
sample of open clusters analysed so far shows a steepening of the
radial metallicity gradient with age, which is also observed in the
young field population. Finally, the Gaia chemical data have the
required coverage and precision to unveil galaxy accretion debris
and heated disc stars on halo orbits through their [alpha/Fe] ratio,
and to allow the study of the chemo-dynamical properties of globular
clusters. Gaia DR3 chemo-dynamical diagnostics open new horizons before
the era of ground-based wide-field spectroscopic surveys. They unveil
a complex Milky Way that is the outcome of an eventful evolution,
shaping it to the present day (abridged).
Title: Gaia Early Data Release 3: The celestial reference frame
(Gaia-CRF3)
Authors: Gaia Collaboration; Klioner, S. A.; Lindegren, L.; Mignard,
F.; Hernández, J.; Ramos-Lerate, M.; Bastian, U.; Biermann, M.;
Bombrun, A.; de Torres, A.; Gerlach, E.; Geyer, R.; Hilger, T.; Hobbs,
D.; Lammers, U. L.; McMillan, P. J.; Steidelmüller, H.; Teyssier, D.;
Raiteri, C. M.; Bartolomé, S.; Bernet, M.; Castañeda, J.; Clotet,
M.; Davidson, M.; Fabricius, C.; Garralda Torres, N.; González-Vidal,
J. J.; Portell, J.; Rowell, N.; Torra, F.; Torra, J.; Brown, A. G. A.;
Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Arenou, F.; Babusiaux,
C.; Creevey, O. L.; Ducourant, C.; Evans, D. W.; Eyer, L.; Guerra, R.;
Hutton, A.; Jordi, C.; Luri, X.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Soubiran, C.; Tanga, P.; Walton, N. A.; Bailer-Jones,
C. A. L.; Drimmel, R.; Jansen, F.; Katz, D.; Lattanzi, M. G.; van
Leeuwen, F.; Bakker, J.; Cacciari, C.; De Angeli, F.; Fouesneau, M.;
Frémat, Y.; Galluccio, L.; Guerrier, A.; Heiter, U.; Masana, E.;
Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler,
F.; Panuzzo, P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.;
Thévenin, F.; Gracia-Abril, G.; Altmann, M.; Andrae, R.; Audard, M.;
Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.; Burgess,
P. W.; Busonero, D.; Busso, G.; Cánovas, H.; Carry, B.; Cellino, A.;
Cheek, N.; Clementini, G.; Damerdji, Y.; de Teodoro, P.; Nuñez Campos,
M.; Delchambre, L.; Dell'Oro, A.; Esquej, P.; Fernández-Hernández,
J.; Fraile, E.; Garabato, D.; García-Lario, P.; Gosset, E.; Haigron,
R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.; Hestroffer,
D.; Hodgkin, S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle,
G.; Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.;
Marchal, O.; Marrese, P. M.; Moitinho, A.; Muinonen, K.; Osborne,
P.; Pancino, E.; Pauwels, T.; Recio-Blanco, A.; Reylé, C.; Riello,
M.; Rimoldini, L.; Roegiers, T.; Rybizki, J.; Sarro, L. M.; Siopis,
C.; Smith, M.; Sozzetti, A.; Utrilla, E.; van Leeuwen, M.; Abbas, U.;
Ábrahám, P.; Abreu Aramburu, A.; Aerts, C.; Aguado, J. J.; Ajaj, M.;
Aldea-Montero, F.; Altavilla, G.; Álvarez, M. A.; Alves, J.; Anderson,
R. I.; Anglada Varela, E.; Antoja, T.; Baines, D.; Baker, S. G.;
Balaguer-Núñez, L.; Balbinot, E.; Balog, Z.; Barache, C.; Barbato,
D.; Barros, M.; Barstow, M. A.; Bassilana, J. -L.; Bauchet, N.;
Becciani, U.; Bellazzini, M.; Berihuete, A.; Bertone, S.; Bianchi, L.;
Binnenfeld, A.; Blanco-Cuaresma, S.; Boch, T.; Bossini, D.; Bouquillon,
S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.; Butkevich, A. G.;
Buzzi, R.; Caffau, E.; Cancelliere, R.; Cantat-Gaudin, T.; Carballo,
R.; Carlucci, T.; Carnerero, M. I.; Carrasco, J. M.; Casamiquela,
L.; Castellani, M.; Castro-Ginard, A.; Chaoul, L.; Charlot, P.;
Chemin, L.; Chiaramida, V.; Chiavassa, A.; Chornay, N.; Comoretto,
G.; Contursi, G.; Cooper, W. J.; Cornez, T.; Cowell, S.; Crifo, F.;
Cropper, M.; Crosta, M.; Crowley, C.; Dafonte, C.; Dapergolas, A.;
David, P.; de Laverny, P.; De Luise, F.; De March, R.; De Ridder, J.;
de Souza, R.; del Peloso, E. F.; del Pozo, E.; Delbo, M.; Delgado,
A.; Delisle, J. -B.; Demouchy, C.; Dharmawardena, T. E.; Diakite, S.;
Diener, C.; Distefano, E.; Dolding, C.; Enke, H.; Fabre, C.; Fabrizio,
M.; Faigler, S.; Fedorets, G.; Fernique, P.; Fienga, A.; Figueras, F.;
Fournier, Y.; Fouron, C.; Fragkoudi, F.; Gai, M.; Garcia-Gutierrez,
A.; Garcia-Reinaldos, M.; García-Torres, M.; Garofalo, A.; Gavel,
A.; Gavras, P.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.;
Gomel, R.; Gomez, A.; González-Núñez, J.; González-Santamaría,
I.; Granvik, M.; Guillout, P.; Guiraud, J.; Gutiérrez-Sánchez, R.;
Guy, L. P.; Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Helmer, A.;
Helmi, A.; Sarmiento, M. H.; Hidalgo, S. L.; Hładczuk, N.; Holland,
G.; Huckle, H. E.; Jardine, K.; Jasniewicz, G.; Jean-Antoine Piccolo,
A.; Jiménez-Arranz, Ó.; Juaristi Campillo, J.; Julbe, F.; Karbevska,
L.; Kervella, P.; Khanna, S.; Kordopatis, G.; Korn, A. J.; Kóspál,
Á; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Kun, M.; Laizeau, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Lebreton,
Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao,
S.; Licata, E. L.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.;
Lobel, A.; Lorca, A.; Loup, C.; Madrero Pardo, P.; Magdaleno Romeo,
A.; Managau, S.; Mann, R. G.; Manteiga, M.; Marchant, J. M.; Marconi,
M.; Marcos, J.; Marcos Santos, M. M. S.; Marín Pina, D.; Marinoni, S.;
Marocco, F.; Marshall, D. J.; Polo, L. Martin; Martín-Fleitas, J. M.;
Marton, G.; Mary, N.; Masip, A.; Massari, D.; Mastrobuono-Battisti, A.;
Mazeh, T.; Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.; Molina,
D.; Molinaro, R.; Molnár, L.; Monari, G.; Monguió, M.; Montegriffo,
P.; Montero, A.; Mor, R.; Mora, A.; Morbidelli, R.; Morel, T.; Morris,
D.; Muraveva, T.; Murphy, C. P.; Musella, I.; Nagy, Z.; Noval, L.;
Ocaña, F.; Ogden, A.; Ordenovic, C.; Osinde, J. O.; Pagani, C.;
Pagano, I.; Palaversa, L.; Palicio, P. A.; Pallas-Quintela, L.;
Panahi, A.; Payne-Wardenaar, S.; Peñalosa Esteller, X.; Penttilä,
A.; Pichon, B.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum,
G.; Poggio, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.;
Rainer, M.; Rambaux, N.; Ramos, P.; Re Fiorentin, P.; Regibo, S.;
Richards, P. J.; Rios Diaz, C.; Ripepi, V.; Riva, A.; Rix, H. -W.;
Rixon, G.; Robichon, N.; Robin, A. C.; Robin, C.; Roelens, M.; Rogues,
H. R. O.; Rohrbasser, L.; Romero-Gómez, M.; Royer, F.; Ruz Mieres, D.;
Rybicki, K. A.; Sadowski, G.; Sáez Núñez, A.; Sagristà Sellés, A.;
Sahlmann, J.; Salguero, E.; Samaras, N.; Sanchez Gimenez, V.; Sanna,
N.; Santoveña, R.; Sarasso, M.; Schultheis, M.; Sciacca, E.; Segol,
M.; Segovia, J. C.; Ségransan, D.; Semeux, D.; Shahaf, S.; Siddiqui,
H. I.; Siebert, A.; Siltala, L.; Silvelo, A.; Slezak, E.; Slezak,
I.; Smart, R. L.; Snaith, O. N.; Solano, E.; Solitro, F.; Souami,
D.; Souchay, J.; Spagna, A.; Spina, L.; Spoto, F.; Steele,
I. A.; Stephenson, C. A.; Süveges, M.; Surdej, J.; Szabados, L.;
Szegedi-Elek, E.; Taris, F.; Taylor, M. B.; Teixeira, R.; Tolomei,
L.; Tonello, N.; Torralba Elipe, G.; Trabucchi, M.; Tsounis, A. T.;
Turon, C.; Ulla, A.; Unger, N.; Vaillant, M. V.; van Dillen, E.;
van Reeven, W.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente, D.;
Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zwitter, T.
Bibcode: 2022arXiv220412574G
Altcode:
Gaia-CRF3 is the celestial reference frame for positions and proper
motions in the third release of data from the Gaia mission, Gaia DR3
(and for the early third release, Gaia EDR3, which contains identical
astrometric results). The reference frame is defined by the positions
and proper motions at epoch 2016.0 for a specific set of extragalactic
sources in the (E)DR3 catalogue. We describe the construction of
Gaia-CRF3, and its properties in terms of the distributions in
magnitude, colour, and astrometric quality. Compact extragalactic
sources in Gaia DR3 were identified by positional cross-matching with
17 external catalogues of quasars (QSO) and active galactic nuclei
(AGN), followed by astrometric filtering designed to remove stellar
contaminants. Selecting a clean sample was favoured over including a
higher number of extragalactic sources. For the final sample, the random
and systematic errors in the proper motions are analysed, as well as the
radio-optical offsets in position for sources in the third realisation
of the International Celestial Reference Frame (ICRF3). The Gaia-CRF3
comprises about 1.6 million QSO-like sources, of which 1.2 million have
five-parameter astrometric solutions in Gaia DR3 and 0.4 million have
six-parameter solutions. The sources span the magnitude range G = 13
to 21 with a peak density at 20.6 mag, at which the typical positional
uncertainty is about 1 mas. The proper motions show systematic errors
on the level of 12 ${\mu}$as yr${}^{-1}$ on angular scales greater than
15 deg. For the 3142 optical counterparts of ICRF3 sources in the S/X
frequency bands, the median offset from the radio positions is about
0.5 mas, but exceeds 4 mas in either coordinate for 127 sources. We
outline the future of the Gaia-CRF in the next Gaia data releases.
Title: VizieR Online Data Catalog: Updated radial velocities from
Gaia DR2 (Seabroke+, 2021)
Authors: Seabroke, G. M.; Fabricius, C.; Teyssier, D.; Sartoretti, P.;
Katz, D.; Cropper, M.; Antoja, T.; Benson, K.; Smith, M.; Dolding,
C.; Gosset, E.; Panuzzo, P.; Thevenin, F.; Allende Prieto, C.;
Blomme, R.; Guerrier, A.; Huckle, H.; Jean-Antoine, A.; Haigron, R.;
Marchal, O.; Baker, S.; Damerdji, Y.; David, M.; Fremat, Y.; Janssen,
K.; Jasniewicz, G.; Lobel, A.; Samaras, N.; Plum, G.; Soubiran, C.;
Vanel, O.; Zwitter, T.; Ajaj, M.; Caffau, E.; Chemin, L.; Royer, F.;
Brouillet, N.; Crifo, F.; Guy, L. P.; Hambly, N. C.; Leclerc, N.;
Mastrobuono-Battisti, A.; Viala, Y.
Bibcode: 2021yCat..36530160S
Altcode:
EDR3 status of high-velocity stars in the negative and positive tail
of DR2's radial velocity distribution. (2 data files).
Title: Gaia Early Data Release 3. Updated radial velocities from
Gaia DR2
Authors: Seabroke, G. M.; Fabricius, C.; Teyssier, D.; Sartoretti, P.;
Katz, D.; Cropper, M.; Antoja, T.; Benson, K.; Smith, M.; Dolding,
C.; Gosset, E.; Panuzzo, P.; Thévenin, F.; Allende Prieto, C.;
Blomme, R.; Guerrier, A.; Huckle, H.; Jean-Antoine, A.; Haigron, R.;
Marchal, O.; Baker, S.; Damerdji, Y.; David, M.; Frémat, Y.; Janßen,
K.; Jasniewicz, G.; Lobel, A.; Samaras, N.; Plum, G.; Soubiran, C.;
Vanel, O.; Zwitter, T.; Ajaj, M.; Caffau, E.; Chemin, L.; Royer, F.;
Brouillet, N.; Crifo, F.; Guy, L. P.; Hambly, N. C.; Leclerc, N.;
Mastrobuono-Battisti, A.; Viala, Y.
Bibcode: 2021A&A...653A.160S
Altcode: 2021arXiv210802796S
Context. Gaia's Early Third Data Release (EDR3) does not contain new
radial velocities because these will be published in Gaia's full third
data release (DR3), expected in the first half of 2022. To maximise
the usefulness of EDR3, Gaia's second data release (DR2) sources
(with radial velocities) are matched to EDR3 sources to allow their
DR2 radial velocities to also be included in EDR3. This presents
two considerations: (i) a list of 70 365 sources with potentially
contaminated DR2 radial velocities has been published; and (ii) EDR3
is based on a new astrometric solution and a new source list, which
means sources in DR2 may not be in EDR3.
Aims: The two aims of
this work are: (i) investigate the list in order to improve the DR2
radial velocities being included in EDR3 and to avoid false-positive
hypervelocity candidates; and (ii) match the DR2 sources (with radial
velocities) to EDR3 sources.
Methods: Thetwo methods of this
work are: (i) unpublished, preliminary DR3 radial velocities of sources
on the list, and high-velocity stars not on the list, are compared
with their DR2 radial velocities to identify and remove contaminated
DR2 radial velocities from EDR3; and (ii) proper motions and epoch
position propagation is used to attempt to match all sources with radial
velocities in DR2 to EDR3 sources. The comparison of DR2 and DR3 radial
velocities is used to resolve match ambiguities.
Results: EDR3
contains 7 209 831 sources with a DR2 radial velocity, which is 99.8%
of sources with a radial velocity in DR2 (7 224 631). 14 800 radial
velocities from DR2 are not propagated to any EDR3 sources because
(i) 3871 from the list are found to either not have a DR3 radial
velocity or it differs significantly from its DR2 value, and five
high-velocity stars not on the list are confirmed to have contaminated
radial velocities, in one case because of contamination from the
non-overlapping Radial Velocity Spectrometer windows of a nearby, bright
star; and (ii) 10 924 DR2 sources could not be satisfactorily matched to
any EDR3 sources, so their DR2 radial velocities are also missing from
EDR3.
Conclusions: The reliability of radial velocities in EDR3
has improved compared to DR2 because the update removes a small fraction
of erroneous radial velocities (0.05% of DR2 radial velocities and 5.5%
of the list). Lessons learnt from EDR3 (e.g. bright star contamination)
will improve the radial velocities in future Gaia data releases. The
main reason for radial velocities from DR2 not propagating to EDR3
is not related to DR2 radial velocity quality. It is because the DR2
astrometry is based on one component of close binary pairs, while
EDR3 astrometry is based on the other component, which prevents these
sources from being unambiguously matched.
Title: Gaia Early Data Release 3. Summary of the contents and survey
properties (Corrigendum)
Authors: Gaia Collaboration; Brown, A. G. A.; Vallenari, A.;
Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Biermann, M.;
Creevey, O. L.; Evans, D. W.; Eyer, L.; Hutton, A.; Jansen, F.;
Jordi, C.; Klioner, S. A.; Lammers, U.; Lindegren, L.; Luri, X.;
Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti, P.;
Soubiran, C.; Walton, N. A.; Arenou, F.; Bailer-Jones, C. A. L.;
Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi, M. G.;
van Leeuwen, F.; Bakker, J.; Cacciari, C.; Castañeda, J.; De Angeli,
F.; Ducourant, C.; Fabricius, C.; Fouesneau, M.; Frémat, Y.; Guerra,
R.; Guerrier, A.; Guiraud, J.; Jean-Antoine Piccolo, A.; Masana, E.;
Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler,
F.; Panuzzo, P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.;
Tanga, P.; Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier,
D.; Altmann, M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier,
J.; Blomme, R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.;
Cellino, A.; Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.;
Delchambre, L.; Dell'Oro, A.; Fernández-Hernández, J.; Galluccio,
L.; García-Lario, P.; Garcia-Reinaldos, M.; González-Núñez, J.;
Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hatzidimitriou, D.; Heiter, U.; Hernández, J.; Hestroffer,
D.; Hodgkin, S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle, G.;
Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Lorca,
A.; Manteiga, M.; Marchal, O.; Marrese, P. M.; Moitinho, A.; Mora, A.;
Muinonen, K.; Osborne, P.; Pancino, E.; Pauwels, T.; Petit, J. -M.;
Recio-Blanco, A.; Richards, P. J.; Riello, M.; Rimoldini, L.; Robin,
A. C.; Roegiers, T.; Rybizki, J.; Sarro, L. M.; Siopis, C.; Smith, M.;
Sozzetti, A.; Ulla, A.; Utrilla, E.; van Leeuwen, M.; van Reeven, W.;
Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.; Aguado, J. J.;
Ajaj, M.; Altavilla, G.; Álvarez, M. A.; Álvarez Cid-Fuentes, J.;
Alves, J.; Anderson, R. I.; Anglada Varela, E.; Antoja, T.; Audard, M.;
Baines, D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog,
Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé,
S.; Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.; Becciani, U.;
Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.; Blanco-Cuaresma,
S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.;
Bramante, L.; Breedt, E.; Bressan, A.; Brouillet, N.; Bucciarelli,
B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cánovas, H.; Cantat-Gaudin, T.; Carballo, R.;
Carlucci, T.; Carnerero, M. I.; Carrasco, J. M.; Casamiquela, L.;
Castellani, M.; Castro-Ginard, A.; Castro Sampol, P.; Chaoul, L.;
Charlot, P.; Chemin, L.; Chiavassa, A.; Cioni, M. -R. L.; Comoretto,
G.; Cooper, W. J.; Cornez, T.; Cowell, S.; Crifo, F.; Crosta, M.;
Crowley, C.; Dafonte, C.; Dapergolas, A.; David, M.; David, P.; de
Laverny, P.; De Luise, F.; De March, R.; De Ridder, J.; de Souza,
R.; de Teodoro, P.; de Torres, A.; del Peloso, E. F.; del Pozo, E.;
Delbo, M.; Delgado, A.; Delgado, H. E.; Delisle, J. -B.; Di Matteo,
P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.; Eappachen,
D.; Edvardsson, B.; Enke, H.; Esquej, P.; Fabre, C.; Fabrizio, M.;
Faigler, S.; Fedorets, G.; Fernique, P.; Fienga, A.; Figueras, F.;
Fouron, C.; Fragkoudi, F.; Fraile, E.; Franke, F.; Gai, M.; Garabato,
D.; Garcia-Gutierrez, A.; García-Torres, M.; Garofalo, A.; Gavras,
P.; Gerlach, E.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona,
S.; Giuffrida, G.; Gomel, R.; Gomez, A.; Gonzalez-Santamaria, I.;
González-Vidal, J. J.; Granvik, M.; Gutiérrez-Sánchez, R.; Guy,
L. P.; Hauser, M.; Haywood, M.; Helmi, A.; Hidalgo, S. L.; Hilger,
T.; Hładczuk, N.; Hobbs, D.; Holland, G.; Huckle, H. E.; Jasniewicz,
G.; Jonker, P. G.; Juaristi Campillo, J.; Julbe, F.; Karbevska, L.;
Kervella, P.; Khanna, S.; Kochoska, A.; Kontizas, M.; Kordopatis, G.;
Korn, A. J.; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Lambert, S.;
Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Le Fustec, Y.; Lebreton,
Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao,
S.; Licata, E.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.;
Lobel, A.; Madrero Pardo, P.; Managau, S.; Mann, R. G.; Marchant,
J. M.; Marconi, M.; Marcos Santos, M. M. S.; Marinoni, S.; Marocco, F.;
Marshall, D. J.; Martin Polo, L.; Martín-Fleitas, J. M.; Masip, A.;
Massari, D.; Mastrobuono-Battisti, A.; Mazeh, T.; McMillan, P. J.;
Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.; Molina, D.;
Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli, R.;
Morel, T.; Morris, D.; Mulone, A. F.; Munoz, D.; Muraveva, T.; Murphy,
C. P.; Musella, I.; Noval, L.; Ordénovic, C.; Orrù, G.; Osinde,
J.; Pagani, C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Panahi,
A.; Pawlak, M.; Peñalosa Esteller, X.; Penttilä, A.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poretti,
E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.;
Rainer, M.; Raiteri, C. M.; Rambaux, N.; Ramos, P.; Ramos-Lerate,
M.; Re Fiorentin, P.; Regibo, S.; Reylé, C.; Ripepi, V.; Riva, A.;
Rixon, G.; Robichon, N.; Robin, C.; Roelens, M.; Rohrbasser, L.;
Romero-Gómez, M.; Rowell, N.; Royer, F.; Rybicki, K. A.; Sadowski,
G.; Sagristà Sellés, A.; Sahlmann, J.; Salgado, J.; Salguero, E.;
Samaras, N.; Sanchez Gimenez, V.; Sanna, N.; Santoveña, R.; Sarasso,
M.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan,
D.; Semeux, D.; Shahaf, S.; Siddiqui, H. I.; Siebert, A.; Siltala,
L.; Slezak, E.; Smart, R. L.; Solano, E.; Solitro, F.; Souami, D.;
Souchay, J.; Spagna, A.; Spoto, F.; Steele, I. A.; Steidelmüller, H.;
Stephenson, C. A.; Süveges, M.; Szabados, L.; Szegedi-Elek, E.; Taris,
F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Thuillot, W.; Tonello, N.;
Torra, F.; Torra, J.; Turon, C.; Unger, N.; Vaillant, M.; van Dillen,
E.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente, D.; Voutsinas,
S.; Weiler, M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Yvard, P.;
Zhao, H.; Zorec, J.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2021A&A...650C...3G
Altcode:
No abstract at ADS
Title: Gaia Early Data Release 3. Structure and properties of the
Magellanic Clouds
Authors: Gaia Collaboration; Luri, X.; Chemin, L.; Clementini,
G.; Delgado, H. E.; McMillan, P. J.; Romero-Gómez, M.; Balbinot,
E.; Castro-Ginard, A.; Mor, R.; Ripepi, V.; Sarro, L. M.; Cioni,
M. -R. L.; Fabricius, C.; Garofalo, A.; Helmi, A.; Muraveva, T.;
Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.;
Babusiaux, C.; Biermann, M.; Creevey, O. L.; Evans, D. W.; Eyer,
L.; Hutton, A.; Jansen, F.; Jordi, C.; Klioner, S. A.; Lammers, U.;
Lindegren, L.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Soubiran, C.; Walton, N. A.; Arenou, F.; Bailer-Jones,
C. A. L.; Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi,
M. G.; van Leeuwen, F.; Bakker, J.; Castañeda, J.; De Angeli, F.;
Ducourant, C.; Fouesneau, M.; Frémat, Y.; Guerra, R.; Guerrier, A.;
Guiraud, J.; Jean-Antoine Piccolo, A.; Masana, E.; Messineo, R.;
Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo,
P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.; Tanga, P.;
Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann,
M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme,
R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.; Cellino,
A.; Cheek, N.; Damerdji, Y.; Davidson, M.; Delchambre, L.; Dell'Oro,
A.; Fernández-Hernández, J.; Galluccio, L.; García-Lario, P.;
Garcia-Reinaldos, M.; González-Núñez, J.; Gosset, E.; Haigron, R.;
Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.; Hatzidimitriou,
D.; Heiter, U.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Holl,
B.; Janßen, K.; Jevardat de Fombelle, G.; Jordan, S.; Krone-Martins,
A.; Lanzafame, A. C.; Löffler, W.; Lorca, A.; Manteiga, M.; Marchal,
O.; Marrese, P. M.; Moitinho, A.; Mora, A.; Muinonen, K.; Osborne, P.;
Pancino, E.; Pauwels, T.; Recio-Blanco, A.; Richards, P. J.; Riello,
M.; Rimoldini, L.; Robin, A. C.; Roegiers, T.; Rybizki, J.; Siopis,
C.; Smith, M.; Sozzetti, A.; Ulla, A.; Utrilla, E.; van Leeuwen, M.;
van Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.;
Aguado, J. J.; Ajaj, M.; Altavilla, G.; Álvarez, M. A.; Álvarez
Cid-Fuentes, J.; Alves, J.; Anderson, R. I.; Anglada Varela, E.;
Antoja, T.; Audard, M.; Baines, D.; Baker, S. G.; Balaguer-Núñez,
L.; Balog, Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.;
Bartolomé, S.; Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.;
Becciani, U.; Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.;
Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon,
S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Bucciarelli, B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.;
Buzzi, R.; Caffau, E.; Cancelliere, R.; Cánovas, H.; Cantat-Gaudin,
T.; Carballo, R.; Carlucci, T.; Carnerero, M. I.; Carrasco, J. M.;
Casamiquela, L.; Castellani, M.; Castro Sampol, P.; Chaoul, L.;
Charlot, P.; Chiavassa, A.; Comoretto, G.; Cooper, W. J.; Cornez,
T.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Dafonte, C.;
Dapergolas, A.; David, M.; David, P.; de Laverny, P.; De Luise, F.;
De March, R.; De Ridder, J.; de Souza, R.; de Teodoro, P.; de Torres,
A.; del Peloso, E. F.; del Pozo, E.; Delgado, A.; Delisle, J. -B.;
Di Matteo, P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding,
C.; Eappachen, D.; Enke, H.; Esquej, P.; Fabre, C.; Fabrizio, M.;
Faigler, S.; Fedorets, G.; Fernique, P.; Fienga, A.; Figueras, F.;
Fouron, C.; Fragkoudi, F.; Fraile, E.; Franke, F.; Gai, M.; Garabato,
D.; Garcia-Gutierrez, A.; García-Torres, M.; Gavras, P.; Gerlach,
E.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.;
Gomez, A.; Gonzalez-Santamaria, I.; González-Vidal, J. J.; Granvik,
M.; Gutiérrez-Sánchez, R.; Guy, L. P.; Hauser, M.; Haywood, M.;
Hidalgo, S. L.; Hilger, T.; Hładczuk, N.; Hobbs, D.; Holland, G.;
Huckle, H. E.; Jasniewicz, G.; Jonker, P. G.; Juaristi Campillo, J.;
Julbe, F.; Karbevska, L.; Kervella, P.; Khanna, S.; Kochoska, A.;
Kontizas, M.; Kordopatis, G.; Korn, A. J.; Kostrzewa-Rutkowska, Z.;
Kruszyńska, K.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion,
J. -F.; Le Fustec, Y.; Lebreton, Y.; Lebzelter, T.; Leccia, S.;
Leclerc, N.; Lecoeur-Taibi, I.; Liao, S.; Licata, E.; Lindstrøm,
H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Madrero Pardo, P.;
Managau, S.; Mann, R. G.; Marchant, J. M.; Marconi, M.; Marcos Santos,
M. M. S.; Marinoni, S.; Marocco, F.; Marshall, D. J.; Martin Polo, L.;
Martín-Fleitas, J. M.; Masip, A.; Massari, D.; Mastrobuono-Battisti,
A.; Mazeh, T.; Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.;
Molina, D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Morbidelli,
R.; Morel, T.; Morris, D.; Mulone, A. F.; Munoz, D.; Murphy,
C. P.; Musella, I.; Noval, L.; Ordénovic, C.; Orrù, G.; Osinde,
J.; Pagani, C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Panahi,
A.; Pawlak, M.; Peñalosa Esteller, X.; Penttilä, A.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poretti,
E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.;
Rainer, M.; Raiteri, C. M.; Rambaux, N.; Ramos, P.; Ramos-Lerate,
M.; Re Fiorentin, P.; Regibo, S.; Reylé, C.; Riva, A.; Rixon,
G.; Robichon, N.; Robin, C.; Roelens, M.; Rohrbasser, L.; Rowell,
N.; Royer, F.; Rybicki, K. A.; Sadowski, G.; Sagristà Sellés,
A.; Sahlmann, J.; Salgado, J.; Salguero, E.; Samaras, N.; Gimenez,
V. Sanchez; Sanna, N.; Santoveña, R.; Sarasso, M.; Schultheis, M.;
Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan, D.; Semeux, D.;
Siddiqui, H. I.; Siebert, A.; Siltala, L.; Slezak, E.; Smart, R. L.;
Solano, E.; Solitro, F.; Souami, D.; Souchay, J.; Spagna, A.; Spoto,
F.; Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.; Süveges,
M.; Szabados, L.; Szegedi-Elek, E.; Taris, F.; Tauran, G.; Taylor,
M. B.; Teixeira, R.; Thuillot, W.; Tonello, N.; Torra, F.; Torra,
J.; Turon, C.; Unger, N.; Vaillant, M.; van Dillen, E.; Vanel, O.;
Vecchiato, A.; Viala, Y.; Vicente, D.; Voutsinas, S.; Weiler, M.;
Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Yvard, P.; Zhao, H.; Zorec,
J.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2021A&A...649A...7G
Altcode: 2020arXiv201201771G
Context. This work is part of the Gaia Data Processing and Analysis
Consortium papers published with the Gaia Early Data Release 3
(EDR3). It is one of the demonstration papers aiming to highlight
the improvements and quality of the newly published data by applying
them to a scientific case.
Aims: We use the Gaia EDR3 data to
study the structure and kinematics of the Magellanic Clouds. The large
distance to the Clouds is a challenge for the Gaia astrometry. The
Clouds lie at the very limits of the usability of the Gaia data,
which makes the Clouds an excellent case study for evaluating the
quality and properties of the Gaia data.
Methods: The basis
of our work are two samples selected to provide a representation as
clean as possible of the stars of the Large Magellanic Cloud (LMC)
and the Small Magellanic Cloud (SMC). The selection used criteria
based on position, parallax, and proper motions to remove foreground
contamination from the Milky Way, and allowed the separation of the
stars of both Clouds. From these two samples we defined a series
of subsamples based on cuts in the colour-magnitude diagram; these
subsamples were used to select stars in a common evolutionary phase and
can also be used as approximate proxies of a selection by age.
Results: We compared the Gaia Data Release 2 and Gaia EDR3 performances
in the study of the Magellanic Clouds and show the clear improvements
in precision and accuracy in the new release. We also show that the
systematics still present in the data make the determination of the
3D geometry of the LMC a difficult endeavour; this is at the very
limit of the usefulness of the Gaia EDR3 astrometry, but it may become
feasible with the use of additional external data. We derive radial
and tangential velocity maps and global profiles for the LMC for the
several subsamples we defined. To our knowledge, this is the first
time that the two planar components of the ordered and random motions
are derived for multiple stellar evolutionary phases in a galactic disc
outside the Milky Way, showing the differences between younger and older
phases. We also analyse the spatial structure and motions in the central
region, the bar, and the disc, providing new insightsinto features and
kinematics. Finally, we show that the Gaia EDR3 data allows clearly
resolving the Magellanic Bridge, and we trace the density and velocity
flow of the stars from the SMC towards the LMC not only globally,
but also separately for young and evolved populations. This allows
us to confirm an evolved population in the Bridge that is slightly
shift from the younger population. Additionally, we were able to
study the outskirts of both Magellanic Clouds, in which we detected
some well-known features and indications of new ones. Velocity
profiles are only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr
(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/649/A7
Title: Gaia Early Data Release 3. Summary of the contents and survey
properties
Authors: Gaia Collaboration; Brown, A. G. A.; Vallenari, A.;
Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Biermann, M.;
Creevey, O. L.; Evans, D. W.; Eyer, L.; Hutton, A.; Jansen, F.;
Jordi, C.; Klioner, S. A.; Lammers, U.; Lindegren, L.; Luri, X.;
Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti, P.;
Soubiran, C.; Walton, N. A.; Arenou, F.; Bailer-Jones, C. A. L.;
Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi, M. G.;
van Leeuwen, F.; Bakker, J.; Cacciari, C.; Castañeda, J.; De Angeli,
F.; Ducourant, C.; Fabricius, C.; Fouesneau, M.; Frémat, Y.; Guerra,
R.; Guerrier, A.; Guiraud, J.; Jean-Antoine Piccolo, A.; Masana, E.;
Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler,
F.; Panuzzo, P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.;
Tanga, P.; Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier,
D.; Altmann, M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier,
J.; Blomme, R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.;
Cellino, A.; Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.;
Delchambre, L.; Dell'Oro, A.; Fernández-Hernández, J.; Galluccio,
L.; García-Lario, P.; Garcia-Reinaldos, M.; González-Núñez, J.;
Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hatzidimitriou, D.; Heiter, U.; Hernández, J.; Hestroffer,
D.; Hodgkin, S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle, G.;
Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Lorca,
A.; Manteiga, M.; Marchal, O.; Marrese, P. M.; Moitinho, A.; Mora, A.;
Muinonen, K.; Osborne, P.; Pancino, E.; Pauwels, T.; Petit, J. -M.;
Recio-Blanco, A.; Richards, P. J.; Riello, M.; Rimoldini, L.; Robin,
A. C.; Roegiers, T.; Rybizki, J.; Sarro, L. M.; Siopis, C.; Smith, M.;
Sozzetti, A.; Ulla, A.; Utrilla, E.; van Leeuwen, M.; van Reeven, W.;
Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.; Aguado, J. J.;
Ajaj, M.; Altavilla, G.; Álvarez, M. A.; Álvarez Cid-Fuentes, J.;
Alves, J.; Anderson, R. I.; Anglada Varela, E.; Antoja, T.; Audard, M.;
Baines, D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog,
Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé,
S.; Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.; Becciani, U.;
Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.; Blanco-Cuaresma,
S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.;
Bramante, L.; Breedt, E.; Bressan, A.; Brouillet, N.; Bucciarelli,
B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cánovas, H.; Cantat-Gaudin, T.; Carballo, R.;
Carlucci, T.; Carnerero, M. I.; Carrasco, J. M.; Casamiquela, L.;
Castellani, M.; Castro-Ginard, A.; Castro Sampol, P.; Chaoul, L.;
Charlot, P.; Chemin, L.; Chiavassa, A.; Cioni, M. -R. L.; Comoretto,
G.; Cooper, W. J.; Cornez, T.; Cowell, S.; Crifo, F.; Crosta, M.;
Crowley, C.; Dafonte, C.; Dapergolas, A.; David, M.; David, P.; de
Laverny, P.; De Luise, F.; De March, R.; De Ridder, J.; de Souza,
R.; de Teodoro, P.; de Torres, A.; del Peloso, E. F.; del Pozo, E.;
Delbo, M.; Delgado, A.; Delgado, H. E.; Delisle, J. -B.; Di Matteo,
P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.; Eappachen,
D.; Edvardsson, B.; Enke, H.; Esquej, P.; Fabre, C.; Fabrizio, M.;
Faigler, S.; Fedorets, G.; Fernique, P.; Fienga, A.; Figueras, F.;
Fouron, C.; Fragkoudi, F.; Fraile, E.; Franke, F.; Gai, M.; Garabato,
D.; Garcia-Gutierrez, A.; García-Torres, M.; Garofalo, A.; Gavras,
P.; Gerlach, E.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona,
S.; Giuffrida, G.; Gomel, R.; Gomez, A.; Gonzalez-Santamaria, I.;
González-Vidal, J. J.; Granvik, M.; Gutiérrez-Sánchez, R.; Guy,
L. P.; Hauser, M.; Haywood, M.; Helmi, A.; Hidalgo, S. L.; Hilger,
T.; Hładczuk, N.; Hobbs, D.; Holland, G.; Huckle, H. E.; Jasniewicz,
G.; Jonker, P. G.; Juaristi Campillo, J.; Julbe, F.; Karbevska, L.;
Kervella, P.; Khanna, S.; Kochoska, A.; Kontizas, M.; Kordopatis, G.;
Korn, A. J.; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Lambert, S.;
Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Le Fustec, Y.; Lebreton,
Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao,
S.; Licata, E.; Lindstrøm, E. P.; Lister, T. A.; Livanou, E.; Lobel,
A.; Madrero Pardo, P.; Managau, S.; Mann, R. G.; Marchant, J. M.;
Marconi, M.; Marcos Santos, M. M. S.; Marinoni, S.; Marocco, F.;
Marshall, D. J.; Martin Polo, L.; Martín-Fleitas, J. M.; Masip, A.;
Massari, D.; Mastrobuono-Battisti, A.; Mazeh, T.; McMillan, P. J.;
Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.; Molina, D.;
Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli, R.;
Morel, T.; Morris, D.; Mulone, A. F.; Munoz, D.; Muraveva, T.; Murphy,
C. P.; Musella, I.; Noval, L.; Ordénovic, C.; Orrù, G.; Osinde,
J.; Pagani, C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Panahi,
A.; Pawlak, M.; Peñalosa Esteller, X.; Penttilä, A.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poretti,
E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.;
Rainer, M.; Raiteri, C. M.; Rambaux, N.; Ramos, P.; Ramos-Lerate,
M.; Re Fiorentin, P.; Regibo, S.; Reylé, C.; Ripepi, V.; Riva, A.;
Rixon, G.; Robichon, N.; Robin, C.; Roelens, M.; Rohrbasser, L.;
Romero-Gómez, M.; Rowell, N.; Royer, F.; Rybicki, K. A.; Sadowski,
G.; Sagristà Sellés, A.; Sahlmann, J.; Salgado, J.; Salguero, E.;
Samaras, N.; Sanchez Gimenez, V.; Sanna, N.; Santoveña, R.; Sarasso,
M.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan,
D.; Semeux, D.; Shahaf, S.; Siddiqui, H. I.; Siebert, A.; Siltala,
L.; Slezak, E.; Smart, R. L.; Solano, E.; Solitro, F.; Souami, D.;
Souchay, J.; Spagna, A.; Spoto, F.; Steele, I. A.; Steidelmüller,
H.; Stephenson, C. A.; Süveges, M.; Szabados, L.; Szegedi-Elek, E.;
Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Thuillot, W.;
Tonello, N.; Torra, F.; Torra, J.; Turon, C.; Unger, N.; Vaillant,
M.; van Dillen, E.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente, D.;
Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2021A&A...649A...1G
Altcode: 2020arXiv201201533G
Context. We present the early installment of the third Gaia data
release, Gaia EDR3, consisting of astrometry and photometry for 1.8
billion sources brighter than magnitude 21, complemented with the
list of radial velocities from Gaia DR2.
Aims: A summary of
the contents of Gaia EDR3 is presented, accompanied by a discussion
on the differences with respect to Gaia DR2 and an overview of the
main limitations which are present in the survey. Recommendations
are made on the responsible use of Gaia EDR3 results.
Methods:
The raw data collected with the Gaia instruments during the first 34
months of the mission have been processed by the Gaia Data Processing
and Analysis Consortium and turned into this early third data release,
which represents a major advance with respect to Gaia DR2 in terms of
astrometric and photometric precision, accuracy, and homogeneity.
Results: Gaia EDR3 contains celestial positions and the apparent
brightness in G for approximately 1.8 billion sources. For 1.5 billion
of those sources, parallaxes, proper motions, and the (GBP
− GRP) colour are also available. The passbands for
G, GBP, and GRP are provided as part of the
release. For ease of use, the 7 million radial velocities from Gaia
DR2 are included in this release, after the removal of a small number
of spurious values. New radial velocities will appear as part of Gaia
DR3. Finally, Gaia EDR3 represents an updated materialisation of the
celestial reference frame (CRF) in the optical, the Gaia-CRF3, which
is based solely on extragalactic sources. The creation of the source
list for Gaia EDR3 includes enhancements that make it more robust with
respect to high proper motion stars, and the disturbing effects of
spurious and partially resolved sources. The source list is largely the
same as that for Gaia DR2, but it does feature new sources and there
are some notable changes. The source list will not change for Gaia
DR3.
Conclusions: Gaia EDR3 represents a significant advance
over Gaia DR2, with parallax precisions increased by 30 per cent,
proper motion precisions increased by a factor of 2, and the systematic
errors in the astrometry suppressed by 30-40% for the parallaxes and
by a factor ~2.5 for the proper motions. The photometry also features
increased precision, but above all much better homogeneity across
colour, magnitude, and celestial position. A single passband for G,
GBP, and GRP is valid over the entire magnitude
and colour range, with no systematics above the 1% level
Title: Gaia Early Data Release 3. The astrometric solution
Authors: Lindegren, L.; Klioner, S. A.; Hernández, J.; Bombrun,
A.; Ramos-Lerate, M.; Steidelmüller, H.; Bastian, U.; Biermann,
M.; de Torres, A.; Gerlach, E.; Geyer, R.; Hilger, T.; Hobbs, D.;
Lammers, U.; McMillan, P. J.; Stephenson, C. A.; Castañeda, J.;
Davidson, M.; Fabricius, C.; Gracia-Abril, G.; Portell, J.; Rowell,
N.; Teyssier, D.; Torra, F.; Bartolomé, S.; Clotet, M.; Garralda, N.;
González-Vidal, J. J.; Torra, J.; Abbas, U.; Altmann, M.; Anglada
Varela, E.; Balaguer-Núñez, L.; Balog, Z.; Barache, C.; Becciani,
U.; Bernet, M.; Bertone, S.; Bianchi, L.; Bouquillon, S.; Brown,
A. G. A.; Bucciarelli, B.; Busonero, D.; Butkevich, A. G.; Buzzi,
R.; Cancelliere, R.; Carlucci, T.; Charlot, P.; Cioni, M. -R. L.;
Crosta, M.; Crowley, C.; del Peloso, E. F.; del Pozo, E.; Drimmel,
R.; Esquej, P.; Fienga, A.; Fraile, E.; Gai, M.; Garcia-Reinaldos,
M.; Guerra, R.; Hambly, N. C.; Hauser, M.; Janßen, K.; Jordan, S.;
Kostrzewa-Rutkowska, Z.; Lattanzi, M. G.; Liao, S.; Licata, E.; Lister,
T. A.; Löffler, W.; Marchant, J. M.; Masip, A.; Mignard, F.; Mints,
A.; Molina, D.; Mora, A.; Morbidelli, R.; Murphy, C. P.; Pagani, C.;
Panuzzo, P.; Peñalosa Esteller, X.; Poggio, E.; Re Fiorentin, P.;
Riva, A.; Sagristà Sellés, A.; Sanchez Gimenez, V.; Sarasso, M.;
Sciacca, E.; Siddiqui, H. I.; Smart, R. L.; Souami, D.; Spagna, A.;
Steele, I. A.; Taris, F.; Utrilla, E.; van Reeven, W.; Vecchiato, A.
Bibcode: 2021A&A...649A...2L
Altcode: 2020arXiv201203380L
Context. Gaia Early Data Release 3 (Gaia EDR3) contains results
for 1.812 billion sources in the magnitude range G = 3-21 based on
observations collected by the European Space Agency Gaia satellite
during the first 34 months of its operational phase.
Aims:
We describe the input data, the models, and the processing used for
the astrometric content of Gaia EDR3, as well as the validation of
these results performed within the astrometry task.
Methods:
The processing broadly followed the same procedures as for Gaia DR2, but
with significant improvements to the modelling of observations. For the
first time in the Gaia data processing, colour-dependent calibrations
of the line- and point-spread functions have been used for sources
with well-determined colours from DR2. In the astrometric processing
these sources obtained five-parameter solutions, whereas other sources
were processed using a special calibration that allowed a pseudocolour
to be estimated as the sixth astrometric parameter. Compared with
DR2, the astrometric calibration models have been extended, and the
spin-related distortion model includes a self-consistent determination
of basic-angle variations, improving the global parallax zero point.
Results: Gaia EDR3 gives full astrometric data (positions at epoch
J2016.0, parallaxes, and proper motions) for 1.468 billion sources (585
millionwith five-parameter solutions, 882 million with six parameters),
and mean positions at J2016.0 for an additional 344 million.Solutions
with five parameters are generally more accurate than six-parameter
solutions, and are available for 93% of the sources brighter than the
17th magnitude. The median uncertainty in parallax and annual proper
motion is 0.02-0.03 mas at magnitude G = 9-14, and around 0.5 mas at G
= 20. Extensive characterisation of the statistical properties of the
solutions is provided, including the estimated angular power spectrum
of parallax bias from the quasars.
Title: Gaia Early Data Release 3. The Galactic anticentre
Authors: Gaia Collaboration; Antoja, T.; McMillan, P. J.; Kordopatis,
G.; Ramos, P.; Helmi, A.; Balbinot, E.; Cantat-Gaudin, T.; Chemin, L.;
Figueras, F.; Jordi, C.; Khanna, S.; Romero-Gómez, M.; Seabroke,
G. M.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne,
J. H. J.; Babusiaux, C.; Biermann, M.; Creevey, O. L.; Evans,
D. W.; Eyer, L.; Hutton, A.; Jansen, F.; Klioner, S. A.; Lammers,
U.; Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.;
Randich, S.; Sartoretti, P.; Soubiran, C.; Walton, N. A.; Arenou, F.;
Bailer-Jones, C. A. L.; Bastian, U.; Cropper, M.; Drimmel, R.; Katz,
D.; Lattanzi, M. G.; van Leeuwen, F.; Bakker, J.; Castañeda, J.;
De Angeli, F.; Ducourant, C.; Fabricius, C.; Fouesneau, M.; Frémat,
Y.; Guerra, R.; Guerrier, A.; Guiraud, J.; Jean-Antoine Piccolo, A.;
Masana, E.; Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.;
Pailler, F.; Panuzzo, P.; Riclet, F.; Roux, W.; Sordo, R.; Tanga,
P.; Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier, D.;
Altmann, M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier,
J.; Blomme, R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.;
Cellino, A.; Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.;
Delchambre, L.; Dell'Oro, A.; Fernández-Hernández, J.; Galluccio,
L.; García-Lario, P.; Garcia-Reinaldos, M.; González-Núñez, J.;
Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hatzidimitriou, D.; Heiter, U.; Hernández, J.; Hestroffer,
D.; Hodgkin, S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle, G.;
Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Lorca,
A.; Manteiga, M.; Marchal, O.; Marrese, P. M.; Moitinho, A.; Mora, A.;
Muinonen, K.; Osborne, P.; Pancino, E.; Pauwels, T.; Recio-Blanco, A.;
Richards, P. J.; Riello, M.; Rimoldini, L.; Robin, A. C.; Roegiers,
T.; Rybizki, J.; Sarro, L. M.; Siopis, C.; Smith, M.; Sozzetti, A.;
Ulla, A.; Utrilla, E.; van Leeuwen, M.; van Reeven, W.; Abbas, U.;
Abreu Aramburu, A.; Accart, S.; Aerts, C.; Aguado, J. J.; Ajaj, M.;
Altavilla, G.; Álvarez, M. A.; Álvarez Cid-Fuentes, J.; Alves,
J.; Anderson, R. I.; Varela, E. Anglada; Audard, M.; Baines, D.;
Baker, S. G.; Balaguer-Núñez, L.; Balog, Z.; Barache, C.; Barbato,
D.; Barros, M.; Barstow, M. A.; Bartolomé, S.; Bassilana, J. -L.;
Bauchet, N.; Baudesson-Stella, A.; Becciani, U.; Bellazzini, M.;
Bernet, M.; Bertone, S.; Bianchi, L.; Blanco-Cuaresma, S.; Boch, T.;
Bombrun, A.; Bossini, D.; Bouquillon, S.; Bragaglia, A.; Bramante, L.;
Breedt, E.; Bressan, A.; Brouillet, N.; Bucciarelli, B.; Burlacu, A.;
Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere,
R.; Cánovas, H.; Carballo, R.; Carlucci, T.; Carnerero, M. I.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.;
Castro Sampol, P.; Chaoul, L.; Charlot, P.; Chiavassa, A.; Cioni,
M. -R. L.; Comoretto, G.; Cooper, W. J.; Cornez, T.; Cowell, S.;
Crifo, F.; Crosta, M.; Crowley, C.; Dafonte, C.; Dapergolas, A.;
David, M.; David, P.; de Laverny, P.; De Luise, F.; De March, R.; De
Ridder, J.; de Souza, R.; de Teodoro, P.; de Torres, A.; del Peloso,
E. F.; del Pozo, E.; Delgado, A.; Delgado, H. E.; Delisle, J. -B.;
Di Matteo, P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.;
Eappachen, D.; Enke, H.; Esquej, P.; Fabre, C.; Fabrizio, M.; Faigler,
S.; Fedorets, G.; Fernique, P.; Fienga, A.; Fouron, C.; Fragkoudi, F.;
Fraile, E.; Franke, F.; Gai, M.; Garabato, D.; Garcia-Gutierrez, A.;
García-Torres, M.; Garofalo, A.; Gavras, P.; Gerlach, E.; Geyer,
R.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.; Gomez,
A.; Gonzalez-Santamaria, I.; González-Vidal, J. J.; Granvik, M.;
Gutiérrez-Sánchez, R.; Guy, L. P.; Hauser, M.; Haywood, M.; Hidalgo,
S. L.; Hilger, T.; Hładczuk, N.; Hobbs, D.; Holland, G.; Huckle,
H. E.; Jasniewicz, G.; Jonker, P. G.; Juaristi Campillo, J.; Julbe,
F.; Karbevska, L.; Kervella, P.; Kochoska, A.; Kontizas, M.; Korn,
A. J.; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Lambert, S.; Lanza,
A. F.; Lasne, Y.; Le Campion, J. -F.; Le Fustec, Y.; Lebreton, Y.;
Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao, S.;
Licata, E.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel,
A.; Madrero Pardo, P.; Managau, S.; Mann, R. G.; Marchant, J. M.;
Marconi, M.; Marcos Santos, M. M. S.; Marinoni, S.; Marocco, F.;
Marshall, D. J.; Martin Polo, L.; Martín-Fleitas, J. M.; Masip,
A.; Massari, D.; Mastrobuono-Battisti, A.; Mazeh, T.; Messina,
S.; Michalik, D.; Millar, N. R.; Mints, A.; Molina, D.; Molinaro,
R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli, R.; Morel,
T.; Morris, D.; Mulone, A. F.; Munoz, D.; Muraveva, T.; Murphy,
C. P.; Musella, I.; Noval, L.; Ordénovic, C.; Orrù, G.; Osinde,
J.; Pagani, C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Panahi,
A.; Pawlak, M.; Peñalosa Esteller, X.; Penttilä, A.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poretti, E.;
Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rainer,
M.; Raiteri, C. M.; Rambaux, N.; Ramos-Lerate, M.; Re Fiorentin, P.;
Regibo, S.; Reylé, C.; Ripepi, V.; Riva, A.; Rixon, G.; Robichon,
N.; Robin, C.; Roelens, M.; Rohrbasser, L.; Rowell, N.; Royer, F.;
Rybicki, K. A.; Sadowski, G.; Sagristà Sellés, A.; Sahlmann, J.;
Salgado, J.; Salguero, E.; Samaras, N.; Sanchez Gimenez, V.; Sanna,
N.; Santoveña, R.; Sarasso, M.; Schultheis, M.; Sciacca, E.; Segol,
M.; Segovia, J. C.; Ségransan, D.; Semeux, D.; Siddiqui, H. I.;
Siebert, A.; Siltala, L.; Slezak, E.; Smart, R. L.; Solano, E.;
Solitro, F.; Souami, D.; Souchay, J.; Spagna, A.; Spoto, F.; Steele,
I. A.; Steidelmüller, H.; Stephenson, C. A.; Süveges, M.; Szabados,
L.; Szegedi-Elek, E.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira,
R.; Thuillot, W.; Tonello, N.; Torra, F.; Torra, J.; Turon, C.; Unger,
N.; Vaillant, M.; van Dillen, E.; Vanel, O.; Vecchiato, A.; Viala,
Y.; Vicente, D.; Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski,
Ł.; Yoldas, A.; Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zurbach,
C.; Zwitter, T.
Bibcode: 2021A&A...649A...8G
Altcode: 2021arXiv210105811G
Aims: We aim to demonstrate the scientific potential of the
Gaia Early Data Release 3 (EDR3) for the study of different aspects
of the Milky Way structure and evolution and we provide, at the
same time, a description of several practical aspects of the data
and examples of their usage.
Methods: We used astrometric
positions, proper motions, parallaxes, and photometry from EDR3 to
select different populations and components and to calculate the
distances and velocities in the direction of the anticentre. In this
direction, the Gaia astrometric data alone enable the calculation
of the vertical and azimuthal velocities; also, the extinction is
relatively low compared to other directions in the Galactic plane. We
then explore the disturbances of the current disc, the spatial and
kinematical distributions of early accreted versus in situ stars,
the structures in the outer parts of the disc, and the orbits of open
clusters Berkeley 29 and Saurer 1.
Results: With the improved
astrometry and photometry of EDR3, we find that: (i) the dynamics of the
Galactic disc are very complex with oscillations in the median rotation
and vertical velocities as a function of radius, vertical asymmetries,
and new correlations, including a bimodality with disc stars with large
angular momentum moving vertically upwards from below the plane, and
disc stars with slightly lower angular momentum moving preferentially
downwards; (ii) we resolve the kinematic substructure (diagonal ridges)
in the outer parts of the disc for the first time; (iii) the red
sequence that has been associated with the proto-Galactic disc that
was present at the time of the merger with Gaia-Enceladus-Sausage is
currently radially concentrated up to around 14 kpc, while the blue
sequence that has been associated with debris of the satellite extends
beyond that; (iv) there are density structures in the outer disc,
both above and below the plane, most probably related to Monoceros,
the Anticentre Stream, and TriAnd, for which the Gaia data allow an
exhaustive selection of candidate member stars and dynamical study;
and (v) the open clusters Berkeley 29 and Saurer 1, despite being
located at large distances from the Galactic centre, are on nearly
circular disc-like orbits.
Conclusions: Even with our simple
preliminary exploration of the Gaia EDR3, we demonstrate how, once
again, these data from the European Space Agency are crucial for our
understanding of the different pieces of our Galaxy and their connection
to its global structure and history. Movie is available at https://www.aanda.org
Title: Gaia Early Data Release 3. Acceleration of the Solar System
from Gaia astrometry
Authors: Gaia Collaboration; Klioner, S. A.; Mignard, F.; Lindegren,
L.; Bastian, U.; McMillan, P. J.; Hernández, J.; Hobbs, D.;
Ramos-Lerate, M.; Biermann, M.; Bombrun, A.; de Torres, A.; Gerlach,
E.; Geyer, R.; Hilger, T.; Lammers, U.; Steidelmüller, H.; Stephenson,
C. A.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne,
J. H. J.; Babusiaux, C.; Creevey, O. L.; Evans, D. W.; Eyer, L.;
Hutton, A.; Jansen, F.; Jordi, C.; Luri, X.; Panem, C.; Pourbaix, D.;
Randich, S.; Sartoretti, P.; Soubiran, C.; Walton, N. A.; Arenou, F.;
Bailer-Jones, C. A. L.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi,
M. G.; van Leeuwen, F.; Bakker, J.; Castañeda, J.; De Angeli, F.;
Ducourant, C.; Fabricius, C.; Fouesneau, M.; Frémat, Y.; Guerra,
R.; Guerrier, A.; Guiraud, J.; Jean-Antoine Piccolo, A.; Masana, E.;
Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler,
F.; Panuzzo, P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.;
Tanga, P.; Thévenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier,
D.; Altmann, M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier,
J.; Blomme, R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.;
Cellino, A.; Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.;
Delchambre, L.; Dell'Oro, A.; Fernández-Hernández, J.; Galluccio,
L.; García-Lario, P.; Garcia-Reinaldos, M.; González-Núñez, J.;
Gosset, E.; Haigron, R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hatzidimitriou, D.; Heiter, U.; Hestroffer, D.; Hodgkin,
S. T.; Holl, B.; Janßen, K.; Jevardat de Fombelle, G.; Jordan,
S.; Krone-Martins, A.; Lanzafame, A. C.; Löffler, W.; Lorca, A.;
Manteiga, M.; Marchal, O.; Marrese, P. M.; Moitinho, A.; Mora, A.;
Muinonen, K.; Osborne, P.; Pancino, E.; Pauwels, T.; Recio-Blanco, A.;
Richards, P. J.; Riello, M.; Rimoldini, L.; Robin, A. C.; Roegiers,
T.; Rybizki, J.; Sarro, L. M.; Siopis, C.; Smith, M.; Sozzetti, A.;
Ulla, A.; Utrilla, E.; van Leeuwen, M.; van Reeven, W.; Abbas, U.;
Abreu Aramburu, A.; Accart, S.; Aerts, C.; Aguado, J. J.; Ajaj, M.;
Altavilla, G.; Álvarez, M. A.; Álvarez Cid-Fuentes, J.; Alves, J.;
Anderson, R. I.; Anglada Varela, E.; Antoja, T.; Audard, M.; Baines,
D.; Baker, S. G.; Balaguer-Núñez, L.; Balbinot, E.; Balog, Z.;
Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.; Bartolomé, S.;
Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.; Becciani, U.;
Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.; Blanco-Cuaresma,
S.; Boch, T.; Bossini, D.; Bouquillon, S.; Bramante, L.; Breedt, E.;
Bressan, A.; Brouillet, N.; Bucciarelli, B.; Burlacu, A.; Busonero, D.;
Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere, R.; Cánovas,
H.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.; Carnerero, M. I.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.;
Castro Sampol, P.; Chaoul, L.; Charlot, P.; Chemin, L.; Chiavassa,
A.; Comoretto, G.; Cooper, W. J.; Cornez, T.; Cowell, S.; Crifo, F.;
Crosta, M.; Crowley, C.; Dafonte, C.; Dapergolas, A.; David, M.;
David, P.; de Laverny, P.; De Luise, F.; De March, R.; De Ridder,
J.; de Souza, R.; de Teodoro, P.; del Peloso, E. F.; del Pozo, E.;
Delgado, A.; Delgado, H. E.; Delisle, J. -B.; Di Matteo, P.; Diakite,
S.; Diener, C.; Distefano, E.; Dolding, C.; Eappachen, D.; Enke,
H.; Esquej, P.; Fabre, C.; Fabrizio, M.; Faigler, S.; Fedorets, G.;
Fernique, P.; Fienga, A.; Figueras, F.; Fouron, C.; Fragkoudi, F.;
Fraile, E.; Franke, F.; Gai, M.; Garabato, D.; Garcia-Gutierrez, A.;
García-Torres, M.; Garofalo, A.; Gavras, P.; Giacobbe, P.; Gilmore,
G.; Girona, S.; Giuffrida, G.; Gomez, A.; Gonzalez-Santamaria, I.;
González-Vidal, J. J.; Granvik, M.; Gutiérrez-Sánchez, R.; Guy,
L. P.; Hauser, M.; Haywood, M.; Helmi, A.; Hidalgo, S. L.; Hładczuk,
N.; Holland, G.; Huckle, H. E.; Jasniewicz, G.; Jonker, P. G.; Juaristi
Campillo, J.; Julbe, F.; Karbevska, L.; Kervella, P.; Khanna, S.;
Kochoska, A.; Kordopatis, G.; Korn, A. J.; Kostrzewa-Rutkowska, Z.;
Kruszyńska, K.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion,
J. -F.; Le Fustec, Y.; Lebreton, Y.; Lebzelter, T.; Leccia, S.;
Leclerc, N.; Lecoeur-Taibi, I.; Liao, S.; Licata, E.; Lindstrøm,
H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Madrero Pardo, P.;
Managau, S.; Mann, R. G.; Marchant, J. M.; Marconi, M.; Marcos Santos,
M. M. S.; Marinoni, S.; Marocco, F.; Marshall, D. J.; Martin Polo, L.;
Martín-Fleitas, J. M.; Masip, A.; Massari, D.; Mastrobuono-Battisti,
A.; Mazeh, T.; Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.;
Molina, D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.;
Morbidelli, R.; Morel, T.; Morris, D.; Mulone, A. F.; Munoz, D.;
Muraveva, T.; Murphy, C. P.; Musella, I.; Noval, L.; Ordénovic, C.;
Orrù, G.; Osinde, J.; Pagani, C.; Pagano, I.; Palaversa, L.; Palicio,
P. A.; Panahi, A.; Pawlak, M.; Peñalosa Esteller, X.; Penttilä, A.;
Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.;
Poretti, E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini,
S.; Rainer, M.; Raiteri, C. M.; Rambaux, N.; Ramos, P.; Re Fiorentin,
P.; Regibo, S.; Reylé, C.; Ripepi, V.; Riva, A.; Rixon, G.; Robichon,
N.; Robin, C.; Roelens, M.; Rohrbasser, L.; Romero-Gómez, M.; Rowell,
N.; Royer, F.; Rybicki, K. A.; Sadowski, G.; Sagristà Sellés, A.;
Sahlmann, J.; Salgado, J.; Salguero, E.; Samaras, N.; Sanchez Gimenez,
V.; Sanna, N.; Santoveña, R.; Sarasso, M.; Schultheis, M.; Sciacca,
E.; Segol, M.; Segovia, J. C.; Ségransan, D.; Semeux, D.; Siddiqui,
H. I.; Siebert, A.; Siltala, L.; Slezak, E.; Smart, R. L.; Solano,
E.; Solitro, F.; Souami, D.; Souchay, J.; Spagna, A.; Spoto, F.;
Steele, I. A.; Süveges, M.; Szabados, L.; Szegedi-Elek, E.; Taris,
F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Thuillot, W.; Tonello, N.;
Torra, F.; Torra, J.; Turon, C.; Unger, N.; Vaillant, M.; van Dillen,
E.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente, D.; Voutsinas, S.;
Weiler, M.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Yvard, P.; Zhao,
H.; Zorec, J.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2021A&A...649A...9G
Altcode: 2020arXiv201202036G
Context. Gaia Early Data Release 3 (Gaia EDR3) provides accurate
astrometry for about 1.6 million compact (QSO-like) extragalactic
sources, 1.2 million of which have the best-quality five-parameter
astrometric solutions.
Aims: The proper motions of QSO-like
sources are used to reveal a systematic pattern due to the acceleration
of the solar systembarycentre with respect to the rest frame of the
Universe. Apart from being an important scientific result by itself,
the acceleration measured in this way is a good quality indicator of the
Gaia astrometric solution.
Methods: Theeffect of the acceleration
was obtained as a part of the general expansion of the vector field of
proper motions in vector spherical harmonics (VSH). Various versions
of the VSH fit and various subsets of the sources were tried and
compared to get the most consistent result and a realistic estimate of
its uncertainty. Additional tests with the Gaia astrometric solution
were used to get a better idea of the possible systematic errors in the
estimate.
Results: Our best estimate of the acceleration based on
Gaia EDR3 is (2.32 ± 0.16) × 10−10 m s−2 (or
7.33 ±0.51 km s−1 Myr−1) towards α = 269.1° ± 5.4°,
δ = −31.6° ± 4.1°, corresponding to a proper motion amplitude
of 5.05 ±0.35 μas yr−1. This is in good agreement
with the acceleration expected from current models of the Galactic
gravitational potential. We expect that future Gaia data releases will
provide estimates of the acceleration with uncertainties substantially
below 0.1 μas yr−1. Movie is only available at https://www.aanda.org
Title: Gaia Early Data Release 3. The Gaia Catalogue of Nearby Stars
Authors: Gaia Collaboration; Smart, R. L.; Sarro, L. M.; Rybizki, J.;
Reylé, C.; Robin, A. C.; Hambly, N. C.; Abbas, U.; Barstow, M. A.;
de Bruijne, J. H. J.; Bucciarelli, B.; Carrasco, J. M.; Cooper, W. J.;
Hodgkin, S. T.; Masana, E.; Michalik, D.; Sahlmann, J.; Sozzetti, A.;
Brown, A. G. A.; Vallenari, A.; Prusti, T.; Babusiaux, C.; Biermann,
M.; Creevey, O. L.; Evans, D. W.; Eyer, L.; Hutton, A.; Jansen, F.;
Jordi, C.; Klioner, S. A.; Lammers, U.; Lindegren, L.; Luri, X.;
Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti, P.;
Soubiran, C.; Walton, N. A.; Arenou, F.; Bailer-Jones, C. A. L.;
Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi, M. G.;
van Leeuwen, F.; Bakker, J.; Castañeda, J.; De Angeli, F.; Ducourant,
C.; Fabricius, C.; Fouesneau, M.; Frémat, Y.; Guerra, R.; Guerrier,
A.; Guiraud, J.; Jean-Antoine Piccolo, A.; Messineo, R.; Mowlavi,
N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo, P.; Riclet,
F.; Roux, W.; Seabroke, G. M.; Sordo, R.; Tanga, P.; Thévenin, F.;
Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann, M.; Andrae, R.;
Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.; Brugaletta,
E.; Burgess, P. W.; Busso, G.; Carry, B.; Cellino, A.; Cheek, N.;
Clementini, G.; Damerdji, Y.; Davidson, M.; Delchambre, L.; Dell'Oro,
A.; Fernández-Hernández, J.; Galluccio, L.; García-Lario, P.;
Garcia-Reinaldos, M.; González-Núñez, J.; Gosset, E.; Haigron,
R.; Halbwachs, J. -L.; Harrison, D. L.; Hatzidimitriou, D.; Heiter,
U.; Hernández, J.; Hestroffer, D.; Holl, B.; Janßen, K.; Jevardat
de Fombelle, G.; Jordan, S.; Krone-Martins, A.; Lanzafame, A. C.;
Löffler, W.; Lorca, A.; Manteiga, M.; Marchal, O.; Marrese, P. M.;
Moitinho, A.; Mora, A.; Muinonen, K.; Osborne, P.; Pancino, E.;
Pauwels, T.; Recio-Blanco, A.; Richards, P. J.; Riello, M.; Rimoldini,
L.; Roegiers, T.; Siopis, C.; Smith, M.; Ulla, A.; Utrilla, E.; van
Leeuwen, M.; van Reeven, W.; Abreu Aramburu, A.; Accart, S.; Aerts,
C.; Aguado, J. J.; Ajaj, M.; Altavilla, G.; Álvarez, M. A.; Álvarez
Cid-Fuentes, J.; Alves, J.; Anderson, R. I.; Anglada Varela, E.;
Antoja, T.; Audard, M.; Baines, D.; Baker, S. G.; Balaguer-Núñez,
L.; Balbinot, E.; Balog, Z.; Barache, C.; Barbato, D.; Barros, M.;
Bartolomé, S.; Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.;
Becciani, U.; Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.;
Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon,
S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cánovas, H.; Cantat-Gaudin, T.; Carballo,
R.; Carlucci, T.; Carnerero, M. I.; Casamiquela, L.; Castellani, M.;
Castro-Ginard, A.; Castro Sampol, P.; Chaoul, L.; Charlot, P.; Chemin,
L.; Chiavassa, A.; Cioni, M. -R. L.; Comoretto, G.; Cornez, T.; Cowell,
S.; Crifo, F.; Crosta, M.; Crowley, C.; Dafonte, C.; Dapergolas, A.;
David, M.; David, P.; de Laverny, P.; De Luise, F.; De March, R.; De
Ridder, J.; de Souza, R.; de Teodoro, P.; de Torres, A.; del Peloso,
E. F.; del Pozo, E.; Delgado, A.; Delgado, H. E.; Delisle, J. -B.;
Di Matteo, P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding,
C.; Eappachen, D.; Edvardsson, B.; Enke, H.; Esquej, P.; Fabre, C.;
Fabrizio, M.; Faigler, S.; Fedorets, G.; Fernique, P.; Fienga, A.;
Figueras, F.; Fouron, C.; Fragkoudi, F.; Fraile, E.; Franke, F.; Gai,
M.; Garabato, D.; Garcia-Gutierrez, A.; García-Torres, M.; Garofalo,
A.; Gavras, P.; Gerlach, E.; Geyer, R.; Giacobbe, P.; Gilmore, G.;
Girona, S.; Giuffrida, G.; Gomel, R.; Gomez, A.; Gonzalez-Santamaria,
I.; González-Vidal, J. J.; Granvik, M.; Gutiérrez-Sánchez, R.; Guy,
L. P.; Hauser, M.; Haywood, M.; Helmi, A.; Hidalgo, S. L.; Hilger,
T.; Hładczuk, N.; Hobbs, D.; Holland, G.; Huckle, H. E.; Jasniewicz,
G.; Jonker, P. G.; Juaristi Campillo, J.; Julbe, F.; Karbevska, L.;
Kervella, P.; Khanna, S.; Kochoska, A.; Kontizas, M.; Kordopatis, G.;
Korn, A. J.; Kostrzewa-Rutkowska, Z.; Kruszyńska, K.; Lambert, S.;
Lanza, A. F.; Lasne, Y.; Le Campion, J. -F.; Le Fustec, Y.; Lebreton,
Y.; Lebzelter, T.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Liao,
S.; Licata, E.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.;
Lobel, A.; Madrero Pardo, P.; Managau, S.; Mann, R. G.; Marchant,
J. M.; Marconi, M.; Marcos Santos, M. M. S.; Marinoni, S.; Marocco,
F.; Marshall, D. J.; Martin Polo, L.; Martín-Fleitas, J. M.; Masip,
A.; Massari, D.; Mastrobuono-Battisti, A.; Mazeh, T.; McMillan,
P. J.; Messina, S.; Millar, N. R.; Mints, A.; Molina, D.; Molinaro,
R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli, R.; Morel,
T.; Morris, D.; Mulone, A. F.; Munoz, D.; Muraveva, T.; Murphy,
C. P.; Musella, I.; Noval, L.; Ordénovic, C.; Orrù, G.; Osinde,
J.; Pagani, C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Panahi,
A.; Pawlak, M.; Peñalosa Esteller, X.; Penttilä, A.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poretti,
E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.;
Rainer, M.; Raiteri, C. M.; Rambaux, N.; Ramos, P.; Ramos-Lerate,
M.; Re Fiorentin, P.; Regibo, S.; Ripepi, V.; Riva, A.; Rixon, G.;
Robichon, N.; Robin, C.; Roelens, M.; Rohrbasser, L.; Romero-Gómez,
M.; Rowell, N.; Royer, F.; Rybicki, K. A.; Sadowski, G.; Sagristà
Sellés, A.; Salgado, J.; Salguero, E.; Samaras, N.; Sanchez Gimenez,
V.; Sanna, N.; Santoveña, R.; Sarasso, M.; Schultheis, M.; Sciacca,
E.; Segol, M.; Segovia, J. C.; Ségransan, D.; Semeux, D.; Shahaf,
S.; Siddiqui, H. I.; Siebert, A.; Siltala, L.; Slezak, E.; Solano, E.;
Solitro, F.; Souami, D.; Souchay, J.; Spagna, A.; Spoto, F.; Steele,
I. A.; Steidelmüller, H.; Stephenson, C. A.; Süveges, M.; Szabados,
L.; Szegedi-Elek, E.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira,
R.; Thuillot, W.; Tonello, N.; Torra, F.; Torra, J.; Turon, C.; Unger,
N.; Vaillant, M.; van Dillen, E.; Vanel, O.; Vecchiato, A.; Viala, Y.;
Vicente, D.; Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, Ł.;
Yoldas, A.; Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zurbach, C.;
Zwitter, T.
Bibcode: 2021A&A...649A...6G
Altcode: 2020arXiv201202061G
Aims: We produce a clean and well-characterised catalogue of
objects within 100 pc of the Sun from the Gaia Early Data Release 3. We
characterise the catalogue through comparisons to the full data release,
external catalogues, and simulations. We carry out a first analysis
of the science that is possible with this sample to demonstrate its
potential and best practices for its use.
Methods: Theselection
of objects within 100 pc from the full catalogue used selected training
sets, machine-learning procedures, astrometric quantities, and solution
quality indicators to determine a probability that the astrometric
solution is reliable. The training set construction exploited the
astrometric data, quality flags, and external photometry. For all
candidates we calculated distance posterior probability densities
using Bayesian procedures and mock catalogues to define priors. Any
object with reliable astrometry and a non-zero probability of being
within 100 pc is included in the catalogue.
Results: We have
produced a catalogue of 331 312 objects that we estimate contains at
least 92% of stars of stellar type M9 within 100 pc of the Sun. We
estimate that 9% of the stars in this catalogue probably lie outside
100 pc, but when the distance probability function is used, a correct
treatment of this contamination is possible. We produced luminosity
functions with a high signal-to-noise ratio for the main-sequence
stars, giants, and white dwarfs. We examined in detail the Hyades
cluster, the white dwarf population, and wide-binary systems and
produced candidate lists for all three samples. We detected local
manifestations of several streams, superclusters, and halo objects,
in which we identified 12 members of Gaia Enceladus. We present the
first direct parallaxes of five objects in multiple systems within
10 pc of the Sun.
Conclusions: We provide the community
with a large, well-characterised catalogue of objects in the
solar neighbourhood. This is a primary benchmark for measuring and
understanding fundamental parameters and descriptive functions in
astronomy. Tables are only available at the CDS via anonymous ftp
to cdsarc.u-strasbg.fr
(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/649/A6
Title: VizieR Online Data Catalog: MC structure and properties
(Gaia Collaboration+, 2021)
Authors: Gaia Collaboration; Luri, X.; Chemin, L.; Clementini,
G.; Delgado, H. E.; McMillan, P. J.; Romero-Gomez, M.; Balbinot,
E.; Castro-Ginard, A.; Mor, R.; Ripepi, V.; Sarro, L. M.; Cioni,
M. -R. L.; Fabricius, C.; Garofalo, A.; Helmi, A.; Muraveva, T.;
Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.;
Babusiaux, C.; Biermann, M.; Creevey, O. L.; Evans, D. W.; Eyer,
L.; Hutton, A.; Jansen, F.; Jordi, C.; Klioner, S. A.; Lammers, U.;
Lindegren, L.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Soubiran, C.; Walton, N. A.; Arenou, F.; Bailer-Jones,
C. A. L.; Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi,
M. G.; van Leeuwen, F.; Bakker, J.; Castaneda, J.; de Angeli, F.;
Ducourant, C.; Fouesneau, M.; Fremat, Y.; Guerra, R.; Guerrier, A.;
Guiraud, J.; Jean-Antoine Piccolo, A.; Masana, E.; Messineo, R.;
Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler, F.; Panuzzo,
P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.; Tanga, P.;
Thevenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier, D.; Altmann,
M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier, J.;
Blomme, R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.;
Cellino, A.; Cheek, N.; Damerdji, Y.; Davidson, M.; Delchambre, L.;
Dell'Oro, A.; Fernandez-Hernandez, J.; Galluccio, L.; Garcia-Lario,
P.; Garcia-Reinaldos, M.; Gonzalez-Nunez, J.; Gosset, E.; Haigron,
R.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.; Hatzidimitriou,
D.; Heiter, U.; Hernandez, J.; Hestroffer, D.; Hodgkin, S. T.; Holl,
B.; Janssen, K.; Jevardat de Fombelle, G.; Jordan, S.; Krone-Martins,
A.; Lanzafame, A. C.; Loeffler, W.; Lorca, A.; Manteiga, M.; Marchal,
O.; Marrese, P. M.; Moitinho, A.; Mora, A.; Muinonen, K.; Osborne, P.;
Pancino, E.; Pauwels, T.; Recio-Blanco, A.; Richards, P. J.; Riello,
M.; Rimoldini, L.; Robin, A. C.; Roegiers, T.; Rybizki, J.; Siopis,
C.; Smith, M.; Sozzetti, A.; Ulla, A.; Utrilla, E.; van Leeuwen, M.;
van Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts,
C.; Aguado, J. J.; Ajaj, M.; Altavilla, G.; Alvarez, M. A.; Alvarez
Cid-Fuentes, J.; Alves, J.; Anderson, R. I.; Anglada Varela, E.;
Antoja, T.; Audard, M.; Baines, D.; Baker, S. G.; Balaguer-Nunez,
L.; Balog, Z.; Barache, C.; Barbato, D.; Barros, M.; Barstow, M. A.;
Bartolome, S.; Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.;
Becciani, U.; Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.;
Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon,
S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Bucciarelli, B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.;
Buzzi, R.; Caffau, E.; Cancelliere, R.; Canovas, H.; Cantat-Gaudin,
T.; Carballo, R.; Carlucci, T.; Carnerero, M. I.; Carrasco, J. M.;
Casamiquela, L.; Castellani, M.; Castro Sampol, P.; Chaoul, L.;
Charlot, P.; Chiavassa, A.; Comoretto, G.; Cooper, W. J.; Cornez,
T.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Dafonte, C.;
Dapergolas, A.; David, M.; David, P.; de Laverny, P.; de Luise, F.;
de March, R.; De Ridder, J.; de Souza, R.; de Teodoro, P.; de Torres,
A.; Del Peloso, E. F.; Del Pozo, E.; Delgado, A.; Delisle, J. -B.;
Di Matteo, P.; Diakite, S.; Diener, C.; Distefano, E.; Dolding,
C.; Eappachen, D.; Enke, H.; Esquej, P.; Fabre, C.; Fabrizio, M.;
Faigler, S.; Fedorets, G.; Fernique, P.; Fienga, A.; Figueras, F.;
Fouron, C.; Fragkoudi, F.; Fraile, E.; Franke, F.; Gai, M.; Garabato,
D.; Garcia-Gutierrez, A.; Garcia-Torres, M.; Gavras, P.; Gerlach,
E.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.;
Gomez, A.; Gonzalez-Santamaria, I.; Gonzalez-Vidal, J. J.; Granvik,
M.; Gutierrez-Sanchez, R.; Guy, L. P.; Hauser, M.; Haywood, M.;
Hidalgo, S. L.; Hilger, T.; Hladczuk, N.; Hobbs, D.; Holland, G.;
Huckle, H. E.; Jasniewicz, G.; Jonker, P. G.; Juaristi Campillo, J.;
Julbe, F.; Karbevska, L.; Kervella, P.; Khanna, S.; Kochoska, A.;
Kontizas, M.; Kordopatis, G.; Korn, A. J.; Kostrzewa-Rutkowska, Z.;
Kruszynska, K.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Le Campion,
J. -F.; Le Fustec, Y.; Lebreton, Y.; Lebzelter, T.; Leccia, S.;
Leclerc, N.; Lecoeur-Taibi, I.; Liao, S.; Licata, E.; Lindstrom,
H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Madrero Pardo, P.;
Managau, S.; Mann, R. G.; Marchant, J. M.; Marconi, M.; Marcos Santos,
M. M. S.; Marinoni, S.; Marocco, F.; Marshall, D. J.; Martin Polo, L.;
Martin-Fleitas, J. M.; Masip, A.; Massari, D.; Mastrobuono-Battisti,
A.; Mazeh, T.; Messina, S.; Michalik, D.; Millar, N. R.; Mints, A.;
Molina, D.; Molinaro, R.; Molnar, L.; Montegriffo, P.; Morbidelli,
R.; Morel, T.; Morris, D.; Mulone, A. F.; Munoz, D.; Murphy, C. P.;
Musella, I.; Noval, L.; Ordenovic, C.; Orru, G.; Osinde, J.; Pagani,
C.; Pagano, I.; Palaversa, L.; Palicio, P. A.; Panahi, A.; Pawlak,
M.; Penalosa Esteller, X.; Penttilae, A.; Piersimoni, A. M.; Pineau,
F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poretti, E.; Poujoulet, E.;
Prsa, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rainer, M.; Raiteri,
C. M.; Rambaux, N.; Ramos, P.; Ramos-Lerate, M.; Re Fiorentin, P.;
Regibo, S.; Reyle, C.; Riva, A.; Rixon, G.; Robichon, N.; Robin, C.;
Roelens, M.; Rohrbasser, L.; Rowell, N.; Royer, F.; Rybicki, K. A.;
Sadowski, G.; Sagrista Selles, A.; Sahlmann, J.; Salgado, J.; Salguero,
E.; Samaras, N.; Sanchez Gimenez, V.; Sanna, N.; Santovena, R.;
Sarasso, M.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.;
Segransan, D.; Semeux, D.; Siddiqui, H. I.; Siebert, A.; Siltala,
L.; Slezak, E.; Smart, R. L.; Solano, E.; Solitro, F.; Souami, D.;
Souchay, J.; Spagna, A.; Spoto, F.; Steele, I. A.; Steidelmueller,
H.; Stephenson, C. A.; Sueveges, M.; Szabados, L.; Szegedi-Elek, E.;
Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Thuillot, W.;
Tonello, N.; Torra, F.; Torra, J.; Turon, C.; Unger, N.; Vaillant,
M.; van Dillen, E.; Vanel, O.; Vecchiato, A.; Viala, Y.; Vicente,
D.; Voutsinas, S.; Weiler, M.; Wevers, T.; Wyrzykowski, L.; Yoldas, A.;
Yvard, P.; Zhao, H.; Zorec, J.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2020yCat..36490007G
Altcode:
Tables of the radial profiles of the azimuthal and radial components
of the ordered and random motions of stellar evolutionary phases in
the Large Magellanic Cloud, as inferred from the 3rd Gaia Data Release
(Early Release of 2020/12/03). Each sub-sample of LMC stellar
evolutionary phase is defined in Sect. 2.3 of the article. The file
lmcall.dat is for a sample combining every stellar phases. (9
data files).
Title: VizieR Online Data Catalog: Gaia Catalogue of Nearby Stars -
GCNS (Gaia collaboration, 2021)
Authors: Gaia Collaboration; Smart, R. L.; Sarro, L. M.; Rybizki,
J.; Reyle, C.; Robin, A. C.; Hambly, N. C.; Abbas, U.; Barstow,
M. A.; de Bruijne, J. H. J.; Bucciarelli, B.; Carrasco, J. M.;
Cooper, W. J.; Hodgkin, S. T.; Masana, E.; Michalik, D.; Sahlmann,
J.; Sozzetti, A.; Brown, A. G. A.; Vallenari, A.; Prusti, T.;
Babusiaux, C.; Biermann, M.; Creevey, O. L.; Evans, D. W.; Eyer,
L.; Hutton, A.; Jansen, F.; Jordi, C.; Klioner, S. A.; Lammers,
U.; Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.;
Randich, S.; Sartoretti, P.; Soubiran, C.; Walton, N. A.; Arenou,
F.; Bailer-Jones, C. A. L.; Bastian, U.; Cropper, M.; Drimmel, R.;
Katz, D.; Lattanzi, M. G.; van Leeuwen, F.; Bakker, J.; Castaneda, J.;
de Angeli, F.; Ducourant, C.; Fabricius, C.; Fouesneau, M.; Fremat,
Y.; Guerra, R.; Guerrier, A.; Guiraud, J.; Jean-Antoine Piccolo, A.;
Messineo, R.; Mowlavi, N.; Nicolas, C.; Nienartowicz, K.; Pailler,
F.; Panuzzo, P.; Riclet, F.; Roux, W.; Seabroke, G. M.; Sordo, R.;
Tanga, P.; Thevenin, F.; Gracia-Abril, G.; Portell, J.; Teyssier, D.;
Altmann, M.; Andrae, R.; Bellas-Velidis, I.; Benson, K.; Berthier,
J.; Blomme, R.; Brugaletta, E.; Burgess, P. W.; Busso, G.; Carry, B.;
Cellino, A.; Cheek, N.; Clementini, G.; Damerdji, Y.; Davidson, M.;
Delchambre, L.; Dell'Oro, A.; Fernandez-Hernandez, J.; Galluccio, L.;
Garcia-Lario, P.; Garcia-Reinaldos, M.; Gonzalez-Nunez, J.; Gosset,
E.; Haigron, R.; Halbwachs, J. -L.; Harrison, D. L.; Hatzidimitriou,
D.; Heiter, U.; Hernandez, J.; Hestroffer, D.; Holl, B.; Janssen, K.;
Jevardat de Fombelle, G.; Jordan, S.; Krone-Martins, A.; Lanzafame,
A. C.; Loeffler, W.; Lorca, A.; Manteiga, M.; Marchal, O.; Marrese,
P. M.; Moitinho, A.; Mora, A.; Muinonen, K.; Osborne, P.; Pancino,
E.; Pauwels, T.; Recio-Blanco, A.; Richards, P. J.; Riello, M.;
Rimoldini, L.; Roegiers, T.; Siopis, C.; Smith, M.; Ulla, A.; Utrilla,
E.; van Leeuwen, M.; van Reeven, W.; Abreu Aramburu, A.; Accart, S.;
Aerts, C.; Aguado, J. J.; Ajaj, M.; Altavilla, G.; Alvarez, M. A.;
Alvarez Cid-Fuentes, J.; Alves, J.; Anderson, R. I.; Anglada Varela,
E.; Antoja, T.; Audard, M.; Baines, D.; Baker, S. G.; Balaguer-Nunez,
L.; Balbinot, E.; Balog, Z.; Barache, C.; Barbato, D.; Barros, M.;
Bartolome, S.; Bassilana, J. -L.; Bauchet, N.; Baudesson-Stella, A.;
Becciani, U.; Bellazzini, M.; Bernet, M.; Bertone, S.; Bianchi, L.;
Blanco-Cuaresma, S.; Boch, T.; Bombrun, A.; Bossini, D.; Bouquillon,
S.; Bragaglia, A.; Bramante, L.; Breedt, E.; Bressan, A.; Brouillet,
N.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Canovas, H.; Cantat-Gaudin, T.; Carballo, R.;
Carlucci, T.; Carnerero, M. I.
Bibcode: 2020yCat..36490006G
Altcode:
We produce a clean and well characterised catalogue of nearby
objects within 100pc of the Sun from the Gaia early third data
release. We characterise the catalogue using the full data release,
and comparisons to other catalogues in literature and simulations. We
started with a sample of objects with a measured parallax of 8mas. For
all candidates we calculate a distance probability function using
Bayesian procedures and mock catalogues for the prediction of the
priors. For each entry using a random forest classifier we attempt
to remove sources with spurious astrometric solutions. >From
this paper we provide the following data files: table1c.dat
(Table1GCNScat): Any object with a non-zero probability
of being within 100 pc and not indicated as a spurious astrometric
solutions. We have also included external photometric and radial
velocity data, the probability of reliable astrometry, probability to
be a white dwarf, the distance 1st, 16th, 50th and 84th percentiles,
the positions and velocities in a galactic reference frame. For
questions please email richard.smart(at)inaf.it. table1r.dat
(Table1GCNSreject): All other entries from the 8mas
sample that were rejected as having a zero probability of being
inside 100pc or indicated as a spurious astrometric solution. This
table has the same format and columns as GCNS_cat.dat. progwd.dat
(ProbWDlt05_ProbGFgt05): A catalogue of 45 sources with low probability
of being a WD in this work (PWD<0.5), but having larger probabilities
in Gentile-Fusillo et al (2019MNRAS.482.4570G, cat. J/MNRAS/482/4570)
(PGF>0.5). For questions please email carrasco(at)fqa.ub.edu. table3.dat (Table3_ResolvedStellarSystems): Resolved binary
candidates in the GCNS catalogue as discussed in the section on
stellar multiplicity: resolved systems. For questions please email
ummi.abbas(at)inaf.it or alessandro.sozzetti(at)inaf.it. maglim.dat
(maglimhpx5percentile): The magnitude percentiles for level
5 healpixels used in the luminosity function determinations. For
questions please email rybizki(at)mpia.de. distpdf.dat
(distance_PDF): The full distance probability density function
calculated in section 2 and used throughout the paper. For questions
please email rybizki(at)mpia.de. missing.dat (missing_10mas):
A list of 1258 objects with published parallaxes greater than 10mas
that are not or have no parallax in EDR3. For questions please email
celine.reyle(at)obs-besancon.fr. hyacomb.dat (Hyades_ComaBer):
A list of 920+212 probable Hyades and ComaBer members in the GCNS
sample. For questions please email daniel.michalik(at)esa.int or
jos.de.bruijne(at)esa.int. (8 data files).
Title: Gaia Data Release 2. The kinematics of globular clusters and
dwarf galaxies around the Milky Way (Corrigendum)
Authors: Gaia Collaboration; Helmi, A.; van Leeuwen, F.; McMillan,
P. J.; Massari, D.; Antoja, T.; Robin, A. C.; Lindegren, L.;
Bastian, U.; Arenou, F.; Babusiaux, C.; Biermann, M.; Breddels,
M. A.; Hobbs, D.; Jordi, C.; Pancino, E.; Reylé, C.; Veljanoski,
J.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne,
J. H. J.; Bailer-Jones, C. A. L.; Evans, D. W.; Eyer, L.; Jansen,
F.; Klioner, S. A.; Lammers, U.; Luri, X.; Mignard, F.; Panem,
C.; Pourbaix, D.; Randich, S.; Sartoretti, P.; Siddiqui, H. I.;
Soubiran, C.; Walton, N. A.; Cropper, M.; Drimmel, R.; Katz, D.;
Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castañeda, J.; Chaoul,
L.; Cheek, N.; De Angeli, F.; Fabricius, C.; Guerra, R.; Holl, B.;
Masana, E.; Messineo, R.; Mowlavi, N.; Nienartowicz, K.; Panuzzo,
P.; Portell, J.; Riello, M.; Seabroke, G. M.; Tanga, P.; Thévenin,
F.; Gracia-Abril, G.; Comoretto, G.; Garcia-Reinaldos, M.; Teyssier,
D.; Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson,
K.; Berthier, J.; Blomme, R.; Burgess, P.; Busso, G.; Carry, B.;
Cellino, A.; Clementini, G.; Clotet, M.; Creevey, O.; Davidson,
M.; De Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant, C.;
Fernández-Hernández, J.; Fouesneau, M.; Frémat, Y.; Galluccio, L.;
García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.;
Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.;
Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.;
Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Löffler, W.;
Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.;
Mora, A.; Muinonen, K.; Osinde, J.; Pauwels, T.; Petit, J. -M.;
Recio-Blanco, A.; Richards, P. J.; Rimoldini, L.; Sarro, L. M.;
Siopis, C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.; van
Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.;
Altavilla, G.; Álvarez, M. A.; Alvarez, R.; Alves, J.; Anderson,
R. I.; Andrei, A. H.; Anglada Varela, E.; Antiche, E.; Arcay, B.;
Astraatmadja, T. L.; Bach, N.; Baker, S. G.; Balaguer-Núñez, L.;
Balm, P.; Barache, C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem,
P. S.; Barrado, D.; Barros, M.; Barstow, M. A.; Bartholomé Muñoz,
S.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.;
Bertone, S.; Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch,
T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bossini, D.; Bouquillon,
S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Bressan, A.; Brouillet,
N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.;
Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere,
R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.;
Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan, G.;
Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers, J.; Dafonte,
C.; Damerdji, Y.; Dapergolas, A.; David, P.; David, M.; de Laverny,
P.; De Luise, F.; De March, R.; de Martino, D.; de Souza, R.; de
Torres, A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado, A.;
Delgado, H. E.; Di Matteo, P.; Diakite, S.; Diener, C.; Distefano,
E.; Dolding, C.; Drazinos, P.; Durán, J.; Edvardsson, B.; Enke, H.;
Eriksson, K.; Esquej, P.; Eynard Bontemps, G.; Fabre, C.; Fabrizio,
M.; Faigler, S.; Falcão, A. J.; Farràs Casas, M.; Federici, L.;
Fedorets, G.; Fernique, P.; Figueras, F.; Filippi, F.; Findeisen, K.;
Fonti, A.; Fraile, E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti,
S.; Garabato, D.; García-Sedano, F.; Garofalo, A.; Garralda, N.;
Gavel, A.; Gavras, P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore,
G.; Girona, S.; Giuffrida, G.; Glass, F.; Gomes, M.; Granvik, M.;
Gueguen, A.; Guerrier, A.; Guiraud, J.; Gutiérrez-Sánchez, R.;
Haigron, R.; Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Heiter,
U.; Heu, J.; Hilger, T.; Hofmann, W.; Holland, G.; Huckle, H. E.;
Hypki, A.; Icardi, V.; Janßen, K.; Jevardat de Fombelle, G.; Jonker,
P. G.; Juhász, Á. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar,
J.; Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas,
E.; Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky,
P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; López,
M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant,
J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall, D. J.;
Martino, M.; Marton, G.; Mary, N.; Matijevič, G.; Mazeh, T.; Messina,
S.; Michalik, D.; Millar, N. R.; Molina, D.; Molinaro, R.; Molnár,
L.; Montegriffo, P.; Mor, R.; Morbidelli, R.; Morel, T.; Morris, D.;
Mulone, A. F.; Muraveva, T.; Musella, I.; Nelemans, G.; Nicastro,
L.; Noval, L.; O'Mullane, W.; Ordénovic, C.; Ordóñez-Blanco,
D.; Osborne, P.; Pagani, C.; Pagano, I.; Pailler, F.; Palacin, H.;
Palaversa, L.; Panahi, A.; Pawlak, M.; Piersimoni, A. M.; Pineau,
F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poujoulet, E.; Prša, A.;
Pulone, L.; Racero, E.; Ragaini, S.; Rambaux, N.; Ramos-Lerate, M.;
Regibo, S.; Riclet, F.; Ripepi, V.; Riva, A.; Rivard, A.; Rixon, G.;
Roegiers, T.; Roelens, M.; Romero-Gómez, M.; Rowell, N.; Royer,
F.; Ruiz-Dern, L.; Sadowski, G.; Sagristà Sellés, T.; Sahlmann,
J.; Salgado, J.; Salguero, E.; Sanna, N.; Santana-Ros, T.; Sarasso,
M.; Savietto, H.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia,
J. C.; Ségransan, D.; Shih, I. -C.; Siltala, L.; Silva, A. F.; Smart,
R. L.; Smith, K. W.; Solano, E.; Solitro, F.; Sordo, R.; Soria Nieto,
S.; Souchay, J.; Spagna, A.; Spoto, F.; Stampa, U.; Steele, I. A.;
Steidelmüller, H.; Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej,
J.; Szabados, L.; Szegedi-Elek, E.; Tapiador, D.; Taris, F.; Tauran,
G.; Taylor, M. B.; Teixeira, R.; Terrett, D.; Teyssandier, P.;
Thuillot, W.; Titarenko, A.; Torra Clotet, F.; Turon, C.; Ulla, A.;
Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini, G.; Valette, V.;
van Elteren, A.; Van Hemelryck, E.; van Leeuwen, M.; Vaschetto, M.;
Vecchiato, A.; Viala, Y.; Vicente, D.; Vogt, S.; von Essen, C.; Voss,
H.; Votruba, V.; Voutsinas, S.; Walmsley, G.; Weiler, M.; Wertz, O.;
Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Žerjal, M.; Ziaeepour,
H.; Zorec, J.; Zschocke, S.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2020A&A...642C...1G
Altcode:
No abstract at ADS
Title: Gaia Data Release 2. Kinematics of globular clusters and
dwarf galaxies around the Milky Way (Corrigendum)
Authors: Gaia Collaboration; Helmi, A.; van Leeuwen, F.; McMillan,
P. J.; Massari, D.; Antoja, T.; Robin, A. C.; Lindegren, L.;
Bastian, U.; Arenou, F.; Babusiaux, C.; Biermann, M.; Breddels,
M. A.; Hobbs, D.; Jordi, C.; Pancino, E.; Reylé, C.; Veljanoski,
J.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne,
J. H. J.; Bailer-Jones, C. A. L.; Evans, D. W.; Eyer, L.; Jansen,
F.; Klioner, S. A.; Lammers, U.; Luri, X.; Mignard, F.; Panem,
C.; Pourbaix, D.; Randich, S.; Sartoretti, P.; Siddiqui, H. I.;
Soubiran, C.; Walton, N. A.; Cropper, M.; Drimmel, R.; Katz, D.;
Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castañeda, J.; Chaoul,
L.; Cheek, N.; De Angeli, F.; Fabricius, C.; Guerra, R.; Holl, B.;
Masana, E.; Messineo, R.; Mowlavi, N.; Nienartowicz, K.; Panuzzo,
P.; Portell, J.; Riello, M.; Seabroke, G. M.; Tanga, P.; Thévenin,
F.; Gracia-Abril, G.; Comoretto, G.; Garcia-Reinaldos, M.; Teyssier,
D.; Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson,
K.; Berthier, J.; Blomme, R.; Burgess, P.; Busso, G.; Carry, B.;
Cellino, A.; Clementini, G.; Clotet, M.; Creevey, O.; Davidson,
M.; De Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant, C.;
Fernández-Hernández, J.; Fouesneau, M.; Frémat, Y.; Galluccio, L.;
García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.;
Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.;
Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.;
Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Löffler, W.;
Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.;
Mora, A.; Muinonen, K.; Osinde, J.; Pauwels, T.; Petit, J. -M.;
Recio-Blanco, A.; Richards, P. J.; Rimoldini, L.; Sarro, L. M.;
Siopis, C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.; van
Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.;
Altavilla, G.; Álvarez, M. A.; Alvarez, R.; Alves, J.; Anderson,
R. I.; Andrei, A. H.; Anglada Varela, E.; Antiche, E.; Arcay, B.;
Astraatmadja, T. L.; Bach, N.; Baker, S. G.; Balaguer-Núñez, L.;
Balm, P.; Barache, C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem,
P. S.; Barrado, D.; Barros, M.; Barstow, M. A.; Bartholomé Muñoz,
S.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.;
Bertone, S.; Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch,
T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bossini, D.; Bouquillon,
S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Bressan, A.; Brouillet,
N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.;
Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere,
R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.;
Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan, G.;
Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers, J.; Dafonte,
C.; Damerdji, Y.; Dapergolas, A.; David, P.; David, M.; de Laverny,
P.; De Luise, F.; De March, R.; de Martino, D.; de Souza, R.; de
Torres, A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado, A.;
Delgado, H. E.; Di Matteo, P.; Diakite, S.; Diener, C.; Distefano,
E.; Dolding, C.; Drazinos, P.; Durán, J.; Edvardsson, B.; Enke, H.;
Eriksson, K.; Esquej, P.; Eynard Bontemps, G.; Fabre, C.; Fabrizio,
M.; Faigler, S.; Falcão, A. J.; Farràs Casas, M.; Federici, L.;
Fedorets, G.; Fernique, P.; Figueras, F.; Filippi, F.; Findeisen, K.;
Fonti, A.; Fraile, E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti,
S.; Garabato, D.; García-Sedano, F.; Garofalo, A.; Garralda, N.;
Gavel, A.; Gavras, P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore,
G.; Girona, S.; Giuffrida, G.; Glass, F.; Gomes, M.; Granvik, M.;
Gueguen, A.; Guerrier, A.; Guiraud, J.; Gutiérrez-Sánchez, R.;
Haigron, R.; Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Heiter,
U.; Heu, J.; Hilger, T.; Hofmann, W.; Holland, G.; Huckle, H. E.;
Hypki, A.; Icardi, V.; Janßen, K.; Jevardat de Fombelle, G.; Jonker,
P. G.; Juhász, Á. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar,
J.; Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas,
E.; Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky,
P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; López,
M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant,
J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall, D. J.;
Martino, M.; Marton, G.; Mary, N.; Matijevič, G.; Mazeh, T.; Messina,
S.; Michalik, D.; Millar, N. R.; Molina, D.; Molinaro, R.; Molnár,
L.; Montegriffo, P.; Mor, R.; Morbidelli, R.; Morel, T.; Morris, D.;
Mulone, A. F.; Muraveva, T.; Musella, I.; Nelemans, G.; Nicastro,
L.; Noval, L.; O'Mullane, W.; Ordénovic, C.; Ordóñez-Blanco,
D.; Osborne, P.; Pagani, C.; Pagano, I.; Pailler, F.; Palacin, H.;
Palaversa, L.; Panahi, A.; Pawlak, M.; Piersimoni, A. M.; Pineau,
F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poujoulet, E.; Prša, A.;
Pulone, L.; Racero, E.; Ragaini, S.; Rambaux, N.; Ramos-Lerate, M.;
Regibo, S.; Riclet, F.; Ripepi, V.; Riva, A.; Rivard, A.; Rixon, G.;
Roegiers, T.; Roelens, M.; Romero-Gómez, M.; Rowell, N.; Royer,
F.; Ruiz-Dern, L.; Sadowski, G.; Sagristà Sellés, T.; Sahlmann,
J.; Salgado, J.; Salguero, E.; Sanna, N.; Santana-Ros, T.; Sarasso,
M.; Savietto, H.; Schultheis, M.; Sciacca, E.; Segol, M.; Segovia,
J. C.; Ségransan, D.; Shih, I. -C.; Siltala, L.; Silva, A. F.; Smart,
R. L.; Smith, K. W.; Solano, E.; Solitro, F.; Sordo, R.; Soria Nieto,
S.; Souchay, J.; Spagna, A.; Spoto, F.; Stampa, U.; Steele, I. A.;
Steidelmüller, H.; Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej,
J.; Szabados, L.; Szegedi-Elek, E.; Tapiador, D.; Taris, F.; Tauran,
G.; Taylor, M. B.; Teixeira, R.; Terrett, D.; Teyssandier, P.;
Thuillot, W.; Titarenko, A.; Torra Clotet, F.; Turon, C.; Ulla, A.;
Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini, G.; Valette, V.;
van Elteren, A.; Van Hemelryck, E.; van Leeuwen, M.; Vaschetto, M.;
Vecchiato, A.; Viala, Y.; Vicente, D.; Vogt, S.; von Essen, C.; Voss,
H.; Votruba, V.; Voutsinas, S.; Walmsley, G.; Weiler, M.; Wertz, O.;
Wevems, T.; Wyrzykowski, Ł.; Yoldas, A.; Žerjal, M.; Ziaeepour,
H.; Zorec, J.; Zschocke, S.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2020A&A...637C...3G
Altcode:
No abstract at ADS
Title: VizieR Online Data Catalog: Gaia DR2 radial velocity standard
stars catalog (Soubiran+, 2018)
Authors: Soubiran, C.; Jasniewicz, G.; Chemin, L.; Zurbach, C.;
Brouillet, N.; Panuzzo, P.; Sartoretti, P.; Katz, D.; Le Campion,
J. -F.; Marchal, O.; Hestroffer, D.; Thevenin, F.; Crifo, F.; Udry,
S.; Cropper, M.; Seabroke, G.; Viala, Y.; Benson, K.; Blomme, R.;
Jean-Antoine-Piccolo, A.; Huckle, H.; Smith, M.; Baker, S. G.;
Damerdji, Y.; Dolding, C.; Fremat, Y.; Gosset, E.; Guerrier, A.;
Guy, L. P.; Haigron, R.; Janssen, K.; Plum, G.; Fabre, C.; Lasne, Y.;
Pailler, F.; Panem, C.; Riclet, F.; Royer, F.; Tauran, G.; Zwitter,
T.; Gueguen, A.; Turon, C.
Bibcode: 2019yCat..36160007S
Altcode:
The Radial Velocity Spectrometer (RVS) on board of Gaia having no
calibration device, the zero point of radial velocities needs to
be calibrated with stars proved to be stable at the level of 300m/s
during the Gaia observations. A dataset of about 71000 ground-based
radial velocity measurements from five high resolution spectrographs
has been compiled. A catalogue of 4813 stars was built by combining
these individual measurements. The zero point has been established
using asteroids. The resulting catalogue has 7 observations per star on
average on a typical time baseline of 6 years, with a median standard
deviation of 15m/s. A subset of the most stable stars fulfilling the RVS
requirements has been used to establish the zero point of the radial
velocities provided in Gaia DR2. The stars not used for calibration
are used for the RVS data validation. (2 data files).
Title: VizieR Online Data Catalog: Gaia DR2. Variable stars in CMD
(Gaia Collaboration+, 2019)
Authors: Gaia Collaboration; Eyer, L.; Rimoldini, L.; Audard, M.;
Anderson, R. I.; Nienartowicz, K.; Glass, F.; Marchal, O.; Grenon, M.;
Mowlavi, N.; Holl, B.; Clementini, G.; Aerts, C.; Mazeh, T.; Evans,
D. W.; Szabados, L.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de
Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.; Biermann,
M.; Jansen, F.; Jordi, C.; Klioner, S. A.; Lammers, U.; Lindegren,
L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.;
Sartoretti, P.; Siddiqui, H. I.; Soubiran, C.; van Leeuwen, F.;
Walton, N. A.; Arenou, F.; Bastian, U.; Cropper, M.; Drimmel, R.;
Katz, D.; Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castaneda,
J.; Chaoul, L.; Cheek, N.; de Angeli, F.; Fabricius, C.; Guerra,
R.; Masana, E.; Messineo, R.; Panuzzo, P.; Portell, J.; Riello, M.;
Seabroke, G. M.; Tanga, P.; Thevenin, F.; Gracia-Abril, G.; Comoretto,
G.; Garcia-Reinaldos, M.; Teyssier, D.; Altmann, M.; Andrae, R.;
Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.; Burgess,
P.; Busso, G.; Carry, B.; Cellino, A.; Clotet, M.; Creevey, O.;
Davidson, M.; de Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant,
C.; Fernandez-Hernandez, J.; Fouesneau, M.; Fremat, Y.; Galluccio, L.;
Garcia-Torres, M.; Gonzalez-Nunez, J.; Gonzalez-Vidal, J. J.; Gosset,
E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.;
Hernandez, J.; Hestroer, D.; Hodgkin, S. T.; Hutton, A.; Jasniewicz,
G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.; Krone-Martins,
A.; Lanzafame, A. C.; Lebzelter, T.; Loeer, W.; Manteiga, M.; Marrese,
P. M.; Martin-Fleitas, J. M.; Moitinho, A.; Mora, A.; Muinonen, K.;
Osinde, J.; Pancino, E.; Pauwels, T.; Petit, J. -M.; Recio-Blanco,
A.; Richards, P. J.; Robin, A. C.; Sarro, L. M.; Siopis, C.; Smith,
M.; Sozzetti, A.; Sueveges, M.; Torra, J.; van Reeven, W.; Abbas,
U.; Abreu Aramburu, A.; Accart, S.; Altavilla, G.; Alvarez, M. A.;
Alvarez, R.; Alves, J.; Andrei, A. H.; Anglada Varela, E.; Antiche, E.;
Antoja, T.; Arcay, B.; Astraatmadja, T. L.; Bach, N.; Baker, S. G.;
Balaguer-Nunez, L.; Balm, P.; Barache, C.; Barata, C.; Barbato, D.;
Barblan, F.; Barklem, P. S.; Barrado, D.; Barros, M.; Barstow, M. A.;
Bartholome Munoz, S.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.;
Berihuete, A.; Bertone, S.; Bianchi, L.; Bienayme, O.; Blanco-Cuaresma,
S.; Boch, T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bossini, D.;
Bouquillon, S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Breddels,
M. A.; Bressan, A.; Brouillet, N.; Bruesemeister, T.; Brugaletta,
E.; Bucciarelli, B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.;
Buzzi, R.; Caau, E.; Cancelliere, R.; Cannizzaro, G.; Cantat-Gaudin,
T.; Carballo, R.; Carlucci, T.; Carrasco, J. M.; Casamiquela, L.;
Castellani, M.; Castro-Ginard, A.; Charlot, P.; Chemin, L.; Chiavassa,
A.; Cocozza, G.; Costigan, G.; Cowell, S.; Crifo, F.; Crosta, M.;
Crowley, C.; Cuypersy, J.; Dafonte, C.; Damerdji, Y.; Dapergolas,
A.; David, P.; David, M.; de Laverny, P.; de Luise, F.; de March,
R.; de Martino, D.; de Souza, R.; de Torres, A.; Debosscher, J.;
Del Pozo, E.; Delbo, M.; Delgado, A.; Delgado, H. E.; Diakite, S.;
Diener, C.; Distefano, E.; Dolding, C.; Drazinos, P.; Duran, J.;
Edvardsson, B.; Enke, H.; Eriksson, K.; Esquej, P.; Eynard Bontemps,
G.; Fabre, C.; Fabrizio, M.; Faigler, S.; Falcao, A. J.; Farras Casas,
M.; Federici, L.; Fedorets, G.; Fernique, P.; Figueras, F.; Filippi,
F.; Findeisen, K.; Fonti, A.; Fraile, E.; Fraser, M.; Frezouls, B.;
Gai, M.; Galleti, S.; Garabato, D.; Garcia-Sedano, F.; Garofalo, A.;
Garralda, N.; Gavel, A.; Gavras, P.; Gerssen, J.; Geyer, R.; Giacobbe,
P.; Gilmore, G.; Girona, S.; Giurida, G.; Gomes, M.; Granvik, M.;
Gueguen, A.; Guerrier, A.; Guiraud, J.; Gutierrez-Sanchez, R.; Haigron,
R.; Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Heiter, U.; Helmi,
A.; Heu, J.; Hilger, T.; Hobbs, D.; Hofmann, W.; Holland, G.; Huckle,
H. E.; Hypki, A.; Icardi, V.; Janssen, K.; Jevardat de Fombelle,
G.; Jonker, P. G.; Juhasz, A. L.; Julbe, F.; Karampelas, A.; Kewley,
A.; Klar, J.; Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.;
Kontizas, E.; Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.;
Koubsky, P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.;
Le Fustec, Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.;
Leclerc, N.; Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.;
Licata, E.; Lindstrom, H. E. P.; Lister, T. A.; Livanou, E.; Lobel,
A.; Lopez, M.; Lorenz, D.; Managau, S.; Mann, R. G.; Mantelet, G.;
Marchant, J. M.; Marconi, M.; Marinoni, S.; Marschalko, G.; Marshall,
D. J.; Martino, M.; Marton, G.; Mary, N.; Massari, D.; Matijevic, G.;
McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Molina,
D.; Molinaro, R.; Molnar, L.; Montegrio, P.; Mor, R.; Morbidelli, R.;
Morel, T.; Morgenthaler, S.; Morris, D.; Mulone, A. F.; Muraveva, T.;
Musella, I.; Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane, W.;
Ordenovic, C.; Ordonez-Blanco, D.; Osborne, P.; Pagani, C.; Pagano,
I.; Pailler, F.; Palacin, H.; Palaversa, L.; Panahi, A.; Pawlak, M.;
Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio,
E.; Poujoulet, E.; Prsa, A.; Pulone, L.; Racero, E.; Ragaini, S.;
Rambaux, N.; Ramos-Lerate, M.; Regibo, S.; Reyle, C.; Riclet, F.;
Ripepi, V.; Riva, A.; Rivard, A.; Rixon, G.; Roegiers, T.; Roelens,
M.; Romero-Gomez, M.; Rowell, N.; Royer, F.; Ruiz-Dern, L.; Sadowski,
G.; Sagrista Selles, T.; Sahlmann, J.; Salgado, J.; Salguero, E.;
Sanna, N.; Santana-Ros, T.; Sarasso, M.; Savietto, H.; Schultheis, M.;
Sciacca, E.; Segol, M.; Segovia, J. C.; Segransan, D.; Shih, I. -C.;
Siltala, L.; Silva, A. F.; Smart, R. L.; Smith, K. W.; Solano, E.;
Solitro, F.; Sordo, R.; Soria Nieto, S.; Souchay, J.; Spagna, A.;
Spoto, F.; Stampa, U.; Steele, I. A.; Steidelmueller, H.; Stephenson,
C. A.; Stoev, H.; Suess, F. F.; Surdej, J.; Szegedi-Elek, E.; Tapiador,
D.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Terrett, D.;
Teyssandier, P.; Thuillot, W.; Titarenko, A.; Torra Clotet, F.; Turon,
C.; Ulla, A.; Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini, G.;
Valette, V.; van Elteren, A.; van Hemelryck, E.; van Leeuwen, M.;
Vaschetto, M.; Vecchiato, A.; Veljanoski, J.; Viala, Y.; Vicente,
D.; Vogt, S.; von Essen, C.; Voss, H.; Votruba, V.; Voutsinas, S.;
Walmsley, G.; Weiler, M.; Wertz, O.; Wevers, T.; Wyrzykowski, L.;
Yoldas, A.; Zerjal, M.; Ziaeepour, H.; Zorec, J.; Zschocke, S.;
Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2019yCat..36230110G
Altcode:
Time series in the G, BP, and RP bands of the selected field-of-view
transits for 224 sources that are not published in Gaia DR2, but
are plotted in Fig. 11. An animated version of Fig. 11 is provided
online and at https://www.cosmos.esa.int/web/gaia/gaiadr2_cu7. (2
data files).
Title: Gaia Data Release 2. Variable stars in the colour-absolute
magnitude diagram
Authors: Gaia Collaboration; Eyer, L.; Rimoldini, L.; Audard, M.;
Anderson, R. I.; Nienartowicz, K.; Glass, F.; Marchal, O.; Grenon,
M.; Mowlavi, N.; Holl, B.; Clementini, G.; Aerts, C.; Mazeh, T.;
Evans, D. W.; Szabados, L.; Brown, A. G. A.; Vallenari, A.; Prusti,
T.; de Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.;
Biermann, M.; Jansen, F.; Jordi, C.; Klioner, S. A.; Lammers, U.;
Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich,
S.; Sartoretti, P.; Siddiqui, H. I.; Soubiran, C.; van Leeuwen, F.;
Walton, N. A.; Arenou, F.; Bastian, U.; Cropper, M.; Drimmel, R.;
Katz, D.; Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castañeda,
J.; Chaoul, L.; Cheek, N.; De Angeli, F.; Fabricius, C.; Guerra,
R.; Masana, E.; Messineo, R.; Panuzzo, P.; Portell, J.; Riello, M.;
Seabroke, G. M.; Tanga, P.; Thévenin, F.; Gracia-Abril, G.; Comoretto,
G.; Garcia-Reinaldos, M.; Teyssier, D.; Altmann, M.; Andrae, R.;
Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme, R.; Burgess,
P.; Busso, G.; Carry, B.; Cellino, A.; Clotet, M.; Creevey, O.;
Davidson, M.; De Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant,
C.; Fernández-Hernández, J.; Fouesneau, M.; Frémat, Y.; Galluccio,
L.; García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.;
Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.;
Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.;
Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Löffler, W.;
Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.;
Mora, A.; Muinonen, K.; Osinde, J.; Pancino, E.; Pauwels, T.; Petit,
J. -M.; Recio-Blanco, A.; Richards, P. J.; Robin, A. C.; Sarro,
L. M.; Siopis, C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.;
van Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Altavilla,
G.; Álvarez, M. A.; Alvarez, R.; Alves, J.; Andrei, A. H.; Anglada
Varela, E.; Antiche, E.; Antoja, T.; Arcay, B.; Astraatmadja, T. L.;
Bach, N.; Baker, S. G.; Balaguer-Núñez, L.; Balm, P.; Barache,
C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem, P. S.; Barrado,
D.; Barros, M.; Barstow, M. A.; Bartholomé Muñoz, S.; Bassilana,
J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.; Bertone, S.;
Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch, T.; Boeche, C.;
Bombrun, A.; Borrachero, R.; Bossini, D.; Bouquillon, S.; Bourda, G.;
Bragaglia, A.; Bramante, L.; Breddels, M. A.; Bressan, A.; Brouillet,
N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.;
Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere,
R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.;
Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan, G.;
Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers, J.; Dafonte,
C.; Damerdji, Y.; Dapergolas, A.; David, P.; David, M.; de Laverny, P.;
De Luise, F.; De March, R.; de Martino, D.; de Souza, R.; de Torres,
A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado, A.; Delgado,
H. E.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.; Drazinos,
P.; Durán, J.; Edvardsson, B.; Enke, H.; Eriksson, K.; Esquej, P.;
Eynard Bontemps, G.; Fabre, C.; Fabrizio, M.; Faigler, S.; Falcão,
A. J.; Farràs Casas, M.; Federici, L.; Fedorets, G.; Fernique,
P.; Figueras, F.; Filippi, F.; Findeisen, K.; Fonti, A.; Fraile,
E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti, S.; Garabato, D.;
García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel, A.; Gavras,
P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.;
Giuffrida, G.; Gomes, M.; Granvik, M.; Gueguen, A.; Guerrier, A.;
Guiraud, J.; Gutiérrez-Sánchez, R.; Haigron, R.; Hatzidimitriou,
D.; Hauser, M.; Haywood, M.; Heiter, U.; Helmi, A.; Heu, J.; Hilger,
T.; Hobbs, D.; Hofmann, W.; Holland, G.; Huckle, H. E.; Hypki, A.;
Icardi, V.; Janßen, K.; Jevardat de Fombelle, G.; Jonker, P. G.;
Juhász, Á. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar, J.;
Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas, E.;
Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; López,
M.; Lorenz, D.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchant,
J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall, D. J.;
Martino, M.; Marton, G.; Mary, N.; Massari, D.; Matijevič, G.;
McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Molina,
D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli,
R.; Morel, T.; Morgenthaler, S.; Morris, D.; Mulone, A. F.; Muraveva,
T.; Musella, I.; Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane,
W.; Ordénovic, C.; Ordóñez-Blanco, D.; Osborne, P.; Pagani, C.;
Pagano, I.; Pailler, F.; Palacin, H.; Palaversa, L.; Panahi, A.;
Pawlak, M.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum,
G.; Poggio, E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.;
Ragaini, S.; Rambaux, N.; Ramos-Lerate, M.; Regibo, S.; Reylé, C.;
Riclet, F.; Ripepi, V.; Riva, A.; Rivard, A.; Rixon, G.; Roegiers,
T.; Roelens, M.; Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruiz-Dern,
L.; Sadowski, G.; Sagristà Sellés, T.; Sahlmann, J.; Salgado, J.;
Salguero, E.; Sanna, N.; Santana-Ros, T.; Sarasso, M.; Savietto, H.;
Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan, D.;
Shih, I. -C.; Siltala, L.; Silva, A. F.; Smart, R. L.; Smith, K. W.;
Solano, E.; Solitro, F.; Sordo, R.; Soria Nieto, S.; Souchay, J.;
Spagna, A.; Spoto, F.; Stampa, U.; Steele, I. A.; Steidelmüller, H.;
Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej, J.; Szegedi-Elek,
E.; Tapiador, D.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira,
R.; Terrett, D.; Teyssandier, P.; Thuillot, W.; Titarenko, A.; Torra
Clotet, F.; Turon, C.; Ulla, A.; Utrilla, E.; Uzzi, S.; Vaillant,
M.; Valentini, G.; Valette, V.; van Elteren, A.; Van Hemelryck,
E.; van Leeuwen, M.; Vaschetto, M.; Vecchiato, A.; Veljanoski, J.;
Viala, Y.; Vicente, D.; Vogt, S.; von Essen, C.; Voss, H.; Votruba,
V.; Voutsinas, S.; Walmsley, G.; Weiler, M.; Wertz, O.; Wevers, T.;
Wyrzykowski, Ł.; Yoldas, A.; Žerjal, M.; Ziaeepour, H.; Zorec, J.;
Zschocke, S.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2019A&A...623A.110G
Altcode: 2018arXiv180409382G
Context. The ESA Gaia mission provides a unique time-domain survey
for more than 1.6 billion sources with G ≲ 21 mag.
Aims:
We showcase stellar variability in the Galactic colour-absolute
magnitude diagram (CaMD). We focus on pulsating, eruptive, and
cataclysmic variables, as well as on stars that exhibit variability
that is due to rotation and eclipses.
Methods: We describe
the locations of variable star classes, variable object fractions,
and typical variability amplitudes throughout the CaMD and show
how variability-related changes in colour and brightness induce
"motions". To do this, we use 22 months of calibrated photometric,
spectro-photometric, and astrometric Gaia data of stars with a
significant parallax. To ensure that a large variety of variable
star classes populate the CaMD, we crossmatched Gaia sources with
known variable stars. We also used the statistics and variability
detection modules of the Gaia variability pipeline. Corrections for
interstellar extinction are not implemented in this article.
Results: Gaia enables the first investigation of Galactic variable
star populations in the CaMD on a similar, if not larger, scale as
was previously done in the Magellanic Clouds. Although the observed
colours are not corrected for reddening, distinct regions are visible
in which variable stars occur. We determine variable star fractions
to within the current detection thresholds of Gaia. Finally,
we report the most complete description of variability-induced
motion within the CaMD to date.
Conclusions: Gaia enables
novel insights into variability phenomena for an unprecedented
number of stars, which will benefit the understanding of stellar
astrophysics. The CaMD of Galactic variable stars provides crucial
information on physical origins of variability in a way that
has previously only been accessible for Galactic star clusters or
external galaxies. Future Gaia data releases will enable significant
improvements over this preview by providing longer time series, more
accurate astrometry, and additional data types (time series BP and
RP spectra, RVS spectra, and radial velocities), all for much larger
samples of stars. A movie associated to Fig. 11 is available at https://www.aanda.org.Data
are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr
(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/623/A110.
Title: Gaia Data Release 2. Properties and validation of the radial
velocities
Authors: Katz, D.; Sartoretti, P.; Cropper, M.; Panuzzo, P.;
Seabroke, G. M.; Viala, Y.; Benson, K.; Blomme, R.; Jasniewicz,
G.; Jean-Antoine, A.; Huckle, H.; Smith, M.; Baker, S.; Crifo,
F.; Damerdji, Y.; David, M.; Dolding, C.; Frémat, Y.; Gosset, E.;
Guerrier, A.; Guy, L. P.; Haigron, R.; Janßen, K.; Marchal, O.;
Plum, G.; Soubiran, C.; Thévenin, F.; Ajaj, M.; Allende Prieto, C.;
Babusiaux, C.; Boudreault, S.; Chemin, L.; Delle Luche, C.; Fabre, C.;
Gueguen, A.; Hambly, N. C.; Lasne, Y.; Meynadier, F.; Pailler, F.;
Panem, C.; Royer, F.; Tauran, G.; Zurbach, C.; Zwitter, T.; Arenou,
F.; Bossini, D.; Gerssen, J.; Gómez, A.; Lemaitre, V.; Leclerc, N.;
Morel, T.; Munari, U.; Turon, C.; Vallenari, A.; Žerjal, M.
Bibcode: 2019A&A...622A.205K
Altcode: 2018arXiv180409372K
Context. For Gaia DR2, 280 million spectra collected by the Radial
Velocity Spectrometer instrument on board Gaia were processed, and
median radial velocities were derived for 9.8 million sources brighter
than GRVS = 12 mag.
Aims: This paper describes the
validation and properties of the median radial velocities published
in Gaia DR2.
Methods: Quality tests and filters were applied to
select those of the 9.8 million radial velocities that have the quality
to be published in Gaia DR2. The accuracy of the selected sample was
assessed with respect to ground-based catalogues. Its precision was
estimated using both ground-based catalogues and the distribution of the
Gaia radial velocity uncertainties.
Results: Gaia DR2 contains
median radial velocities for 7 224 631 stars, with Teff
in the range [3550, 6900] K, which successfully passed the quality
tests. The published median radial velocities provide a full-sky
coverage and are complete with respect to the astrometric data to within
77.2% (for G ≤ 12.5 mag). The median radial velocity residuals with
respect to the ground-based surveys vary from one catalogue to another,
but do not exceed a few 100 m s-1. In addition, the Gaia
radial velocities show a positive trend as a function of magnitude,
which starts around GRVS 9 mag and reaches about + 500 m
s-1 at GRVS = 11.75 mag. The origin of the trend
is under investigation, with the aim to correct for it in Gaia DR3. The
overall precision, estimated from the median of the Gaia radial velocity
uncertainties, is 1.05 km s-1. The radial velocity precision
is a function of many parameters, in particular, the magnitude and
effective temperature. For bright stars, GRVS ∈ [4, 8] mag,
the precision, estimated using the full dataset, is in the range 220-350
m s-1, which is about three to five times more precise than
the pre-launch specification of 1 km s-1. At the faint end,
GRVS = 11.75 mag, the precisions for Teff =
5000 and 6500 K are 1.4 and 3.7 km s-1, respectively.
Title: Gaia Data Release 2. Observations of solar system objects
Authors: Gaia Collaboration; Spoto, F.; Tanga, P.; Mignard, F.;
Berthier, J.; Carry, B.; Cellino, A.; Dell'Oro, A.; Hestroffer, D.;
Muinonen, K.; Pauwels, T.; Petit, J. -M.; David, P.; De Angeli, F.;
Delbo, M.; Frézouls, B.; Galluccio, L.; Granvik, M.; Guiraud, J.;
Hernández, J.; Ordénovic, C.; Portell, J.; Poujoulet, E.; Thuillot,
W.; Walmsley, G.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de
Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.; Biermann,
M.; Evans, D. W.; Eyer, L.; Jansen, F.; Jordi, C.; Klioner, S. A.;
Lammers, U.; Lindegren, L.; Luri, X.; Panem, C.; Pourbaix, D.; Randich,
S.; Sartoretti, P.; Siddiqui, H. I.; Soubiran, C.; van Leeuwen, F.;
Walton, N. A.; Arenou, F.; Bastian, U.; Cropper, M.; Drimmel, R.;
Katz, D.; Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castañeda, J.;
Chaoul, L.; Cheek, N.; Fabricius, C.; Guerra, R.; Holl, B.; Masana,
E.; Messineo, R.; Mowlavi, N.; Nienartowicz, K.; Panuzzo, P.; Riello,
M.; Seabroke, G. M.; Thévenin, F.; Gracia-Abril, G.; Comoretto,
G.; Garcia-Reinaldos, M.; Teyssier, D.; Altmann, M.; Andrae, R.;
Audard, M.; Bellas-Velidis, I.; Benson, K.; Blomme, R.; Burgess, P.;
Busso, G.; Clementini, G.; Clotet, M.; Creevey, O.; Davidson, M.; De
Ridder, J.; Delchambre, L.; Ducourant, C.; Fernández-Hernández, J.;
Fouesneau, M.; Frémat, Y.; García-Torres, M.; González-Núñez,
J.; González-Vidal, J. J.; Gosset, E.; Guy, L. P.; Halbwachs,
J. -L.; Hambly, N. C.; Harrison, D. L.; Hodgkin, S. T.; Hutton,
A.; Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn,
A. J.; Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Lö, W.;
Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.;
Mora, A.; Osinde, J.; Pancino, E.; Recio-Blanco, A.; Richards, P. J.;
Rimoldini, L.; Robin, A. C.; Sarro, L. M.; Siopis, C.; Smith, M.;
Sozzetti, A.; Süveges, M.; Torra, J.; van Reeven, W.; Abbas, U.;
Abreu Aramburu, A.; Accart, S.; Aerts, C.; Altavilla, G.; Álvarez,
M. A.; Alvarez, R.; Alves, J.; Anderson, R. I.; Andrei, A. H.; Anglada
Varela, E.; Antiche, E.; Antoja, T.; Arcay, B.; Astraatmadja, T. L.;
Bach, N.; Baker, S. G.; Balaguer-Núñez, L.; Balm, P.; Barache,
C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem, P. S.; Barrado,
D.; Barros, M.; Barstow, M. A.; Bartholomé Muñoz, L.; Bassilana,
J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.; Bertone, S.;
Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch, T.; Boeche, C.;
Bombrun, A.; Borrachero, R.; Bossini, D.; Bouquillon, S.; Bourda, G.;
Bragaglia, A.; Bramante, L.; Breddels, M. A.; Bressan, A.; Brouillet,
N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.;
Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere,
R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard,
A.; Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan,
G.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers, J.;
Dafonte, C.; Damerdji, Y.; Dapergolas, A.; David, M.; de Laverny, P.;
De Luise, F.; De March, R.; de Souza, R.; de Torres, A.; Debosscher,
J.; del Pozo, E.; Delgado, A.; Delgado, H. E.; Diakite, S.; Diener,
C.; Distefano, E.; Dolding, C.; Drazinos, P.; Durán, J.; Edvardsson,
B.; Enke, H.; Eriksson, K.; Esquej, P.; Eynard Bontemps, G.; Fabre,
C.; Fabrizio, M.; Faigler, S.; Falcão, A. J.; Farràs Casas, M.;
Federici, L.; Fedorets, G.; Fernique, P.; Figueras, F.; Filippi, F.;
Findeisen, K.; Fonti, A.; Fraile, E.; Fraser, M.; Gai, M.; Galleti, S.;
Garabato, D.; García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel,
A.; Gavras, P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.;
Girona, S.; Giuffrida, G.; Glass, F.; Gomes, M.; Gueguen, A.; Guerrier,
A.; Gutié, R.; Haigron, R.; Hatzidimitriou, D.; Hauser, M.; Haywood,
M.; Heiter, U.; Helmi, A.; Heu, J.; Hilger, T.; Hobbs, D.; Hofmann,
W.; Holland, G.; Huckle, H. E.; Hypki, A.; Icardi, V.; Janßen, K.;
Jevardat de Fombelle, G.; Jonker, P. G.; Juhász, Á. L.; Julbe,
F.; Karampelas, A.; Kewley, A.; Klar, J.; Kochoska, A.; Kohley, R.;
Kolenberg, K.; Kontizas, M.; Kontizas, E.; Koposov, S. E.; Kordopatis,
G.; Kostrzewa-Rutkowska, Z.; Koubsky, P.; Lambert, S.; Lanza, A. F.;
Lasne, Y.; Lavigne, J. -B.; Le Fustec, Y.; Le Poncin-Lafitte, C.;
Lebreton, Y.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Lenhardt,
H.; Leroux, F.; Liao, S.; Licata, E.; Lindstrøm, H. E. P.; Lister,
T. A.; Livanou, E.; Lobel, A.; López, M.; Managau, S.; Mann, R. G.;
Mantelet, G.; Marchal, O.; Marchant, J. M.; Marconi, M.; Marinoni,
S.; Marschalkó, G.; Marshall, D. J.; Martino, M.; Marton, G.; Mary,
N.; Massari, D.; Matijevič, G.; Mazeh, T.; McMillan, P. J.; Messina,
S.; Michalik, D.; Millar, N. R.; Molina, D.; Molinaro, R.; Molnár,
L.; Montegriffo, P.; Mor, R.; Morbidelli, R.; Morel, T.; Morris, D.;
Mulone, A. F.; Muraveva, T.; Musella, I.; Nelemans, G.; Nicastro, L.;
Noval, L.; O'Mullane, W.; Ordóñez-Blanco, D.; Osborne, P.; Pagani,
C.; Pagano, I.; Pailler, F.; Palacin, H.; Palaversa, L.; Panahi, A.;
Pawlak, M.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.;
Poggio, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rambaux,
N.; Ramos-Lerate, M.; Regibo, S.; Reylé, C.; Riclet, F.; Ripepi,
V.; Riva, A.; Rivard, A.; Rixon, G.; Roegiers, T.; Roelens, M.;
Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruiz-Dern, L.; Sadowski,
G.; Sagristà Sellés, T.; Sahlmann, J.; Salgado, J.; Salguero, E.;
Sanna, N.; Santana-Ros, T.; Sarasso, M.; Savietto, H.; Schultheis, M.;
Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan, D.; Shih, I. -C.;
Siltala, L.; Silva, A. F.; Smart, R. L.; Smith, K. W.; Solano, E.;
Solitro, F.; Sordo, R.; Soria Nieto, S.; Souchay, J.; Spagna, A.;
Stampa, U.; Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.;
Stoev, H.; Suess, F. F.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.;
Tapiador, D.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.;
Terrett, D.; Teyssandier, P.; Titarenko, A.; Torra Clotet, F.; Turon,
C.; Ulla, A.; Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini, G.;
Valette, V.; van Elteren, A.; Van Hemelryck, E.; van Leeuwen, M.;
Vaschetto, M.; Vecchiato, A.; Veljanoski, J.; Viala, Y.; Vicente,
D.; Vogt, S.; von Essen, C.; Voss, H.; Votruba, V.; Voutsinas, S.;
Weiler, M.; Wertz, O.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Žerjal, M.; Ziaeepour, H.; Zorec, J.; Zschocke, S.; Zucker, S.;
Zurbach, C.; Zwitter, T.
Bibcode: 2018A&A...616A..13G
Altcode: 2018arXiv180409379G
Context. The Gaia spacecraft of the European Space Agency (ESA)
has been securing observations of solar system objects (SSOs) since
the beginning of its operations. Data Release 2 (DR2) contains the
observations of a selected sample of 14,099 SSOs. These asteroids have
been already identified and have been numbered by the Minor Planet
Center repository. Positions are provided for each Gaia observation at
CCD level. As additional information, complementary to astrometry, the
apparent brightness of SSOs in the unfiltered G band is also provided
for selected observations.
Aims: We explain the processing of SSO
data, and describe the criteria we used to select the sample published
in Gaia DR2. We then explore the data set to assess its quality.
Methods: To exploit the main data product for the solar system in Gaia
DR2, which is the epoch astrometry of asteroids, it is necessary to take
into account the unusual properties of the uncertainty, as the position
information is nearly one-dimensional. When this aspect is handled
appropriately, an orbit fit can be obtained with post-fit residuals
that are overall consistent with the a-priori error model that was used
to define individual values of the astrometric uncertainty. The role
of both random and systematic errors is described. The distribution
of residuals allowed us to identify possible contaminants in the
data set (such as stars). Photometry in the G band was compared
to computed values from reference asteroid shapes and to the flux
registered at the corresponding epochs by the red and blue photometers
(RP and BP).
Results: The overall astrometric performance is
close to the expectations, with an optimal range of brightness G 12 -
17. In this range, the typical transit-level accuracy is well below
1 mas. For fainter asteroids, the growing photon noise deteriorates
the performance. Asteroids brighter than G 12 are affected by a lower
performance of the processing of their signals. The dramatic improvement
brought by Gaia DR2 astrometry of SSOs is demonstrated by comparisons
to the archive data and by preliminary tests on the detection of subtle
non-gravitational effects.
Title: Gaia Data Release 2. Processing the spectroscopic data
Authors: Sartoretti, P.; Katz, D.; Cropper, M.; Panuzzo, P.;
Seabroke, G. M.; Viala, Y.; Benson, K.; Blomme, R.; Jasniewicz,
G.; Jean-Antoine, A.; Huckle, H.; Smith, M.; Baker, S.; Crifo,
F.; Damerdji, Y.; David, M.; Dolding, C.; Frémat, Y.; Gosset, E.;
Guerrier, A.; Guy, L. P.; Haigron, R.; Janßen, K.; Marchal, O.;
Plum, G.; Soubiran, C.; Thévenin, F.; Ajaj, M.; Allende Prieto, C.;
Babusiaux, C.; Boudreault, S.; Chemin, L.; Delle Luche, C.; Fabre, C.;
Gueguen, A.; Hambly, N. C.; Lasne, Y.; Meynadier, F.; Pailler, F.;
Panem, C.; Riclet, F.; Royer, F.; Tauran, G.; Zurbach, C.; Zwitter,
T.; Arenou, F.; Gomez, A.; Lemaitre, V.; Leclerc, N.; Morel, T.;
Munari, U.; Turon, C.; Žerjal, M.
Bibcode: 2018A&A...616A...6S
Altcode: 2018arXiv180409371S
Context. The Gaia Data Release 2 (DR2) contains the first release
of radial velocities complementing the kinematic data of a sample
of about 7 million relatively bright, late-type stars.
Aims:
This paper provides a detailed description of the Gaia spectroscopic
data processing pipeline, and of the approach adopted to derive the
radial velocities presented in DR2.
Methods: The pipeline must
perform four main tasks: (i) clean and reduce the spectra observed
with the Radial Velocity Spectrometer (RVS); (ii) calibrate the RVS
instrument, including wavelength, straylight, line-spread function,
bias non-uniformity, and photometric zeropoint; (iii) extract the
radial velocities; and (iv) verify the accuracy and precision of the
results. The radial velocity of a star is obtained through a fit of the
RVS spectrum relative to an appropriate synthetic template spectrum. An
additional task of the spectroscopic pipeline was to provide first-order
estimates of the stellar atmospheric parameters required to select
such template spectra. We describe the pipeline features and present
the detailed calibration algorithms and software solutions we used to
produce the radial velocities published in DR2.
Results: The
spectroscopic processing pipeline produced median radial velocities
for Gaia stars with narrow-band near-IR magnitude GRVS
≤ 12 (i.e. brighter than V ~ 13). Stars identified as double-lined
spectroscopic binaries were removed from the pipeline, while variable
stars, single-lined, and non-detected double-lined spectroscopic
binaries were treated as single stars. The scatter in radial velocity
among different observations of a same star, also published in Gaia DR2,
provides information about radial velocity variability. For the hottest
(Teff ≥ 7000 K) and coolest (Teff ≤ 3500 K)
stars, the accuracy and precision of the stellar parameter estimates are
not sufficient to allow selection of appropriate templates. The radial
velocities obtained for these stars were removed from DR2. The pipeline
also provides a first-order estimate of the performance obtained. The
overall accuracy of radial velocity measurements is around ~200-300
m s-1, and the overall precision is ~1 km s-1;
it reaches ~200 m s-1 for the brightest stars.
Title: The escape speed curve of the Galaxy obtained from Gaia DR2
implies a heavy Milky Way
Authors: Monari, G.; Famaey, B.; Carrillo, I.; Piffl, T.; Steinmetz,
M.; Wyse, R. F. G.; Anders, F.; Chiappini, C.; Janßen, K.
Bibcode: 2018A&A...616L...9M
Altcode: 2018arXiv180704565M
We measure the escape speed curve of the Milky Way based on the
analysis of the velocity distribution of 2850 counter-rotating halo
stars from the Gaia Data Release 2. The distances were estimated
through the StarHorse code, and only stars with distance errors
smaller than 10% were used in the study. The escape speed curve is
measured at Galactocentric radii ranging from 5 kpc to 10.5 kpc. The
local Galactic escape at the Sun's position is estimated to be
ve(r⊙) = 580 ± 63 km s-1, and
it rises towards the Galactic centre. Defined as the minimum speed
required to reach three virial radii, our estimate of the escape
speed as a function of radius implies for a Navarro-Frenk-White
profile and local circular velocity of 240 km s-1 a dark
matter mass M200 = 1.28-0.50+0.68
× 1012 M⊙ and a high concentration
c200 = 11.09-1.79+2.94. Assuming
the mass-concentration relation of ΛCDM, we obtain M200 =
1.55-0.51+0.64 × 1012 M⊙
and c200 = 7.93-0.27+0.33 for a local
circular velocity of 228 km s-1.
Title: Gaia Data Release 2. Gaia Radial Velocity Spectrometer
Authors: Cropper, M.; Katz, D.; Sartoretti, P.; Prusti, T.; de Bruijne,
J. H. J.; Chassat, F.; Charvet, P.; Boyadjian, J.; Perryman, M.; Sarri,
G.; Gare, P.; Erdmann, M.; Munari, U.; Zwitter, T.; Wilkinson, M.;
Arenou, F.; Vallenari, A.; Gómez, A.; Panuzzo, P.; Seabroke, G.;
Allende Prieto, C.; Benson, K.; Marchal, O.; Huckle, H.; Smith, M.;
Dolding, C.; Janßen, K.; Viala, Y.; Blomme, R.; Baker, S.; Boudreault,
S.; Crifo, F.; Soubiran, C.; Frémat, Y.; Jasniewicz, G.; Guerrier,
A.; Guy, L. P.; Turon, C.; Jean-Antoine-Piccolo, A.; Thévenin, F.;
David, M.; Gosset, E.; Damerdji, Y.
Bibcode: 2018A&A...616A...5C
Altcode: 2018arXiv180409369C
This paper presents the specification, design, and development
of the Radial Velocity Spectrometer (RVS) on the European Space
Agency's Gaia mission. Starting with the rationale for the full six
dimensions of phase space in the dynamical modelling of the Galaxy,
the scientific goals and derived top-level instrument requirements
are discussed, leading to a brief description of the initial concepts
for the instrument. The main part of the paper is a description of
the flight RVS, considering the optical design, the focal plane,
the detection and acquisition chain, and the as-built performance
drivers and critical technical areas. After presenting the pre-launch
performance predictions, the paper concludes with the post-launch
developments and mitigation strategies, together with a summary of
the in-flight performance at the end of commissioning.
Title: Gaia Data Release 2. The celestial reference frame (Gaia-CRF2)
Authors: Gaia Collaboration; Mignard, F.; Klioner, S. A.; Lindegren,
L.; Hernández, J.; Bastian, U.; Bombrun, A.; Hobbs, D.; Lammers, U.;
Michalik, D.; Ramos-Lerate, M.; Biermann, M.; Fernández-Hernández,
J.; Geyer, R.; Hilger, T.; Siddiqui, H. I.; Steidelmüller, H.;
Babusiaux, C.; Barache, C.; Lambert, S.; Andrei, A. H.; Bourda, G.;
Charlot, P.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne,
J. H. J.; Bailer-Jones, C. A. L.; Evans, D. W.; Eyer, L.; Jansen, F.;
Jordi, C.; Luri, X.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti,
P.; Soubiran, C.; van Leeuwen, F.; Walton, N. A.; Arenou, F.; Cropper,
M.; Drimmel, R.; Katz, D.; Lattanzi, M. G.; Bakker, J.; Cacciari,
C.; Castañeda, J.; Chaoul, L.; Cheek, N.; De Angeli, F.; Fabricius,
C.; Guerra, R.; Holl, B.; Masana, E.; Messineo, R.; Mowlavi, N.;
Nienartowicz, K.; Panuzzo, P.; Portell, J.; Riello, M.; Seabroke,
G. M.; Tanga, P.; Thévenin, F.; Gracia-Abril, G.; Comoretto,
G.; Garcia-Reinaldos, M.; Teyssier, D.; Altmann, M.; Andrae, R.;
Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme,
R.; Burgess, P.; Busso, G.; Carry, B.; Cellino, A.; Clementini, G.;
Clotet, M.; Creevey, O.; Davidson, M.; De Ridder, J.; Delchambre, L.;
Dell'Oro, A.; Ducourant, C.; Fouesneau, M.; Frémat, Y.; Galluccio,
L.; García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.;
Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.; Jasniewicz, G.;
Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.; Krone-Martins, A.;
Lanzafame, A. C.; Lebzelter, T.; Löffler, W.; Manteiga, M.; Marrese,
P. M.; Martín-Fleitas, J. M.; Moitinho, A.; Mora, A.; Muinonen, K.;
Osinde, J.; Pancino, E.; Pauwels, T.; Petit, J. -M.; Recio-Blanco, A.;
Richards, P. J.; Rimoldini, L.; Robin, A. C.; Sarro, L. M.; Siopis,
C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.; van Reeven,
W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.; Altavilla,
G.; Álvarez, M. A.; Alvarez, R.; Alves, J.; Anderson, R. I.; Anglada
Varela, E.; Antiche, E.; Antoja, T.; Arcay, B.; Astraatmadja, T. L.;
Bach, N.; Baker, S. G.; Balaguer-Núñez, L.; Balm, P.; Barata, C.;
Barbato, D.; Barblan, F.; Barklem, P. S.; Barrado, D.; Barros, M.;
Barstow, M. A.; Bartholomé Muñoz, L.; Bassilana, J. -L.; Becciani,
U.; Bellazzini, M.; Berihuete, A.; Bertone, S.; Bianchi, L.; Bienaymé,
O.; Blanco-Cuaresma, S.; Boch, T.; Boeche, C.; Borrachero, R.;
Bossini, D.; Bouquillon, S.; Bragaglia, A.; Bramante, L.; Breddels,
M. A.; Bressan, A.; Brouillet, N.; Brüsemeister, T.; Brugaletta, E.;
Bucciarelli, B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi,
R.; Caffau, E.; Cancelliere, R.; Cannizzaro, G.; Cantat-Gaudin,
T.; Carballo, R.; Carlucci, T.; Carrasco, J. M.; Casamiquela, L.;
Castellani, M.; Castro-Ginard, A.; Chemin, L.; Chiavassa, A.; Cocozza,
G.; Costigan, G.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.;
Cuypers, J.; Dafonte, C.; Damerdji, Y.; Dapergolas, A.; David, P.;
David, M.; de Laverny, P.; De Luise, F.; De March, R.; de Souza, R.;
de Torres, A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado, A.;
Delgado, H. E.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.;
Drazinos, P.; Durán, J.; Edvardsson, B.; Enke, H.; Eriksson, K.;
Esquej, P.; Eynard Bontemps, G.; Fabre, C.; Fabrizio, M.; Faigler,
S.; Falcão, A. J.; Farràs Casas, M.; Federici, L.; Fedorets, G.;
Fernique, P.; Figueras, F.; Filippi, F.; Findeisen, K.; Fonti, A.;
Fraile, E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti, S.; Garabato,
D.; García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel, A.; Gavras,
P.; Gerssen, J.; Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.;
Glass, F.; Gomes, M.; Granvik, M.; Gueguen, A.; Guerrier, A.; Guiraud,
J.; Gutié, R.; Haigron, R.; Hatzidimitriou, D.; Hauser, M.; Haywood,
M.; Heiter, U.; Helmi, A.; Heu, J.; Hofmann, W.; Holland, G.; Huckle,
H. E.; Hypki, A.; Icardi, V.; Janßen, K.; Jevardat de Fombelle, G.;
Jonker, P. G.; Juhász, A. L.; Julbe, F.; Karampelas, A.; Kewley,
A.; Klar, J.; Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.;
Kontizas, E.; Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska,
Z.; Koubsky, P.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; López,
M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant,
J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall, D. J.;
Martino, M.; Marton, G.; Mary, N.; Massari, D.; Matijevič, G.;
Mazeh, T.; McMillan, P. J.; Messina, S.; Millar, N. R.; Molina, D.;
Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli,
R.; Morel, T.; Morris, D.; Mulone, A. F.; Muraveva, T.; Musella, I.;
Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane, W.; Ordénovic, C.;
Ordóñez-Blanco, D.; Osborne, P.; Pagani, C.; Pagano, I.; Pailler,
F.; Palacin, H.; Palaversa, L.; Panahi, A.; Pawlak, M.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poujoulet,
E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rambaux, N.;
Regibo, S.; Reylé, C.; Riclet, F.; Ripepi, V.; Riva, A.; Rivard,
A.; Rixon, G.; Roegiers, T.; Roelens, M.; Romero-Gómez, M.; Rowell,
N.; Royer, F.; Ruiz-Dern, L.; Sadowski, G.; Sagristà Sellés, T.;
Sahlmann, J.; Salgado, J.; Salguero, E.; Sanna, N.; Santana-Ros, T.;
Sarasso, M.; Savietto, H.; Schultheis, M.; Sciacca, E.; Segol, M.;
Segovia, J. C.; Ségransan, D.; Shih, I. -C.; Siltala, L.; Silva,
A. F.; Smart, R. L.; Smith, K. W.; Solano, E.; Solitro, F.; Sordo,
R.; Soria Nieto, S.; Souchay, J.; Spagna, A.; Spoto, F.; Stampa, U.;
Steele, I. A.; Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej,
J.; Szabados, L.; Szegedi-Elek, E.; Tapiador, D.; Taris, F.; Tauran,
G.; Taylor, M. B.; Teixeira, R.; Terrett, D.; Teyssandier, P.;
Thuillot, W.; Titarenko, A.; Torra Clotet, F.; Turon, C.; Ulla,
A.; Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini, G.; Valette,
V.; van Elteren, A.; Van Hemelryck, E.; van Leeuwen, M.; Vaschetto,
M.; Vecchiato, A.; Veljanoski, J.; Viala, Y.; Vicente, D.; Vogt, S.;
von Essen, C.; Voss, H.; Votruba, V.; Voutsinas, S.; Walmsley, G.;
Weiler, M.; Wertz, O.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Žerjal, M.; Ziaeepour, H.; Zorec, J.; Zschocke, S.; Zucker, S.;
Zurbach, C.; Zwitter, T.
Bibcode: 2018A&A...616A..14G
Altcode: 2018arXiv180409377M
Context. The second release of Gaia data (Gaia DR2) contains the
astrometric parameters for more than half a million quasars. This set
defines a kinematically non-rotating reference frame in the optical
domain. A subset of these quasars have accurate VLBI positions
that allow the axes of the reference frame to be aligned with the
International Celestial Reference System (ICRF) radio frame.
Aims: We describe the astrometric and photometric properties of
the quasars that were selected to represent the celestial reference
frame of Gaia DR2 (Gaia-CRF2), and to compare the optical and radio
positions for sources with accurate VLBI positions.
Methods:
Descriptive statistics are used to characterise the overall properties
of the quasar sample. Residual rotation and orientation errors and
large-scale systematics are quantified by means of expansions in vector
spherical harmonics. Positional differences are calculated relative to
a prototype version of the forthcoming ICRF3.
Results: Gaia-CRF2
consists of the positions of a sample of 556 869 sources in Gaia DR2,
obtained from a positional cross-match with the ICRF3-prototype and
AllWISE AGN catalogues. The sample constitutes a clean, dense, and
homogeneous set of extragalactic point sources in the magnitude range
G ≃ 16 to 21 mag with accurately known optical positions. The median
positional uncertainty is 0.12 mas for G < 18 mag and 0.5 mas at
G = mag. Large-scale systematics are estimated to be in the range 20
to 30 μas. The accuracy claims are supported by the parallaxes and
proper motions of the quasars in Gaia DR2. The optical positions for
a subset of 2820 sources in common with the ICRF3-prototype show very
good overall agreement with the radio positions, but several tens of
sources have significantly discrepant positions.
Conclusions:
Based on less than 40% of the data expected from the nominal Gaia
mission, Gaia-CRF2 is the first realisation of a non-rotating global
optical reference frame that meets the ICRS prescriptions, meaning
that it is built only on extragalactic sources. Its accuracy matches
the current radio frame of the ICRF, but the density of sources in
all parts of the sky is much higher, except along the Galactic equator.
Title: Gaia Data Release 2. Mapping the Milky Way disc kinematics
Authors: Gaia Collaboration; Katz, D.; Antoja, T.; Romero-Gómez, M.;
Drimmel, R.; Reylé, C.; Seabroke, G. M.; Soubiran, C.; Babusiaux,
C.; Di Matteo, P.; Figueras, F.; Poggio, E.; Robin, A. C.; Evans,
D. W.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne,
J. H. J.; Bailer-Jones, C. A. L.; Biermann, M.; Eyer, L.; Jansen,
F.; Jordi, C.; Klioner, S. A.; Lammers, U.; Lindegren, L.; Luri,
X.; Mignard, F.; Panem, C.; Pourbaix, D.; Randich, S.; Sartoretti,
P.; Siddiqui, H. I.; van Leeuwen, F.; Walton, N. A.; Arenou, F.;
Bastian, U.; Cropper, M.; Lattanzi, M. G.; Bakker, J.; Cacciari,
C.; Casta n, J.; Chaoul, L.; Cheek, N.; De Angeli, F.; Fabricius,
C.; Guerra, R.; Holl, B.; Masana, E.; Messineo, R.; Mowlavi, N.;
Nienartowicz, K.; Panuzzo, P.; Portell, J.; Riello, M.; Tanga, P.;
Thévenin, F.; Gracia-Abril, G.; Comoretto, G.; Garcia-Reinaldos, M.;
Teyssier, D.; Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis,
I.; Benson, K.; Berthier, J.; Blomme, R.; Burgess, P.; Busso, G.;
Carry, B.; Cellino, A.; Clementini, G.; Clotet, M.; Creevey, O.;
Davidson, M.; De Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant,
C.; Fernández-Hernández, J.; Fouesneau, M.; Frémat, Y.; Galluccio,
L.; García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.;
Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.;
Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.;
Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Löffler, W.;
Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.;
Mora, A.; Muinonen, K.; Osinde, J.; Pancino, E.; Pauwels, T.; Petit,
J. -M.; Recio-Blanco, A.; Richards, P. J.; Rimoldini, L.; Sarro,
L. M.; Siopis, C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.;
van Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.;
Altavilla, G.; Álvarez, M. A.; Alvarez, R.; Alves, J.; Anderson,
R. I.; Andrei, A. H.; Anglada Varela, E.; Antiche, E.; Arcay, B.;
Astraatmadja, T. L.; Bach, N.; Baker, S. G.; Balaguer-Núñez, L.;
Balm, P.; Barache, C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem,
P. S.; Barrado, D.; Barros, M.; Barstow, M. A.; Bartholomé Muñoz,
L.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.;
Bertone, S.; Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch,
T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bossini, D.; Bouquillon,
S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Breddels, M. A.; Bressan,
A.; Brouillet, N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli,
B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo,
R.; Carlucci, T.; Carrasco, J. M.; Casamiquela, L.; Castellani, M.;
Castro-Ginard, A.; Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza,
G.; Costigan, G.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.;
Cuypers, J.; Dafonte, C.; Damerdji, Y.; Dapergolas, A.; David, P.;
David, M.; de Laverny, P.; De Luise, F.; De March, R.; de Souza, R.;
de Torres, A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado, A.;
Delgado, H. E.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.;
Drazinos, P.; Durán, J.; Edvardsson, B.; Enke, H.; Eriksson, K.;
Esquej, P.; Eynard Bontemps, G.; Fabre, C.; Fabrizio, M.; Faigler,
S.; Falc a, A. J.; Farràs Casas, M.; Federici, L.; Fedorets, G.;
Fernique, P.; Filippi, F.; Findeisen, K.; Fonti, A.; Fraile, E.;
Fraser, M.; Frézouls, B.; Gai, M.; Galleti, S.; Garabato, D.;
García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel, A.; Gavras,
P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona,
S.; Giuffrida, G.; Glass, F.; Gomes, M.; Granvik, M.; Gueguen, A.;
Guerrier, A.; Guiraud, J.; Gutié, R.; Haigron, R.; Hatzidimitriou,
D.; Hauser, M.; Haywood, M.; Heiter, U.; Helmi, A.; Heu, J.; Hilger,
T.; Hobbs, D.; Hofmann, W.; Holland, G.; Huckle, H. E.; Hypki, A.;
Icardi, V.; Janßen, K.; Jevardat de Fombelle, G.; Jonker, P. G.;
Juhász, Á. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar, J.;
Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas, E.;
Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; López,
M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant,
J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall, D. J.;
Martino, M.; Marton, G.; Mary, N.; Massari, D.; Matijevič, G.; Mazeh,
T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Molina,
D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli,
R.; Morel, T.; Morris, D.; Mulone, A. F.; Muraveva, T.; Musella, I.;
Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane, W.; Ordénovic, C.;
Ordóñez-Blanco, D.; Osborne, P.; Pagani, C.; Pagano, I.; Pailler,
F.; Palacin, H.; Palaversa, L.; Panahi, A.; Pawlak, M.; Piersimoni,
A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poujoulet, E.; Prša,
A.; Pulone, L.; Racero, E.; Ragaini, S.; Rambaux, N.; Ramos-Lerate,
M.; Regibo, S.; Riclet, F.; Ripepi, V.; Riva, A.; Rivard, A.; Rixon,
G.; Roegiers, T.; Roelens, M.; Rowell, N.; Royer, F.; Ruiz-Dern,
L.; Sadowski, G.; Sagristà Sellés, T.; Sahlmann, J.; Salgado, J.;
Salguero, E.; Sanna, N.; Santana-Ros, T.; Sarasso, M.; Savietto, H.;
Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan,
D.; Shih, I. -C.; Siltala, L.; Silva, A. F.; Smart, R. L.; Smith,
K. W.; Solano, E.; Solitro, F.; Sordo, R.; Soria Nieto, S.; Souchay,
J.; Spagna, A.; Spoto, F.; Stampa, U.; Steele, I. A.; Steidelmüller,
H.; Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej, J.; Szabados,
L.; Szegedi-Elek, E.; Tapiador, D.; Taris, F.; Tauran, G.; Taylor,
M. B.; Teixeira, R.; Terrett, D.; Teyssandier, P.; Thuillot, W.;
Titarenko, A.; Torra Clotet, F.; Turon, C.; Ulla, A.; Utrilla, E.;
Uzzi, S.; Vaillant, M.; Valentini, G.; Valette, V.; van Elteren,
A.; Van Hemelryck, E.; van Leeuwen, M.; Vaschetto, M.; Vecchiato,
A.; Veljanoski, J.; Viala, Y.; Vicente, D.; Vogt, S.; von Essen, C.;
Voss, H.; Votruba, V.; Voutsinas, S.; Walmsley, G.; Weiler, M.; Wertz,
O.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Žerjal, M.; Ziaeepour,
H.; Zorec, J.; Zschocke, S.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2018A&A...616A..11G
Altcode: 2018arXiv180409380G
Context. The second Gaia data release (Gaia DR2) contains high-precision
positions, parallaxes, and proper motions for 1.3 billion sources as
well as line-of-sight velocities for 7.2 million stars brighter than
GRVS = 12 mag. Both samples provide a full sky coverage.
Aims: To illustrate the potential of Gaia DR2, we provide a first
look at the kinematics of the Milky Way disc, within a radius of several
kiloparsecs around the Sun.
Methods: We benefit for the first
time from a sample of 6.4 million F-G-K stars with full 6D phase-space
coordinates, precise parallaxes (σϖ/ϖ ≤ 20%), and
precise Galactic cylindrical velocities (median uncertainties of 0.9-1.4
km s-1 and 20% of the stars with uncertainties smaller than
1 km s-1 on all three components). From this sample, we
extracted a sub-sample of 3.2 million giant stars to map the velocity
field of the Galactic disc from 5 kpc to 13 kpc from the Galactic
centre and up to 2 kpc above and below the plane. We also study the
distribution of 0.3 million solar neighbourhood stars (r < 200 pc),
with median velocity uncertainties of 0.4 km s-1, in velocity
space and use the full sample to examine how the over-densities evolve
in more distant regions.
Results: Gaia DR2 allows us to draw 3D
maps of the Galactocentric median velocities and velocity dispersions
with unprecedented accuracy, precision, and spatial resolution. The
maps show the complexity and richness of the velocity field of the
galactic disc. We observe streaming motions in all the components of
the velocities as well as patterns in the velocity dispersions. For
example, we confirm the previously reported negative and positive
galactocentric radial velocity gradients in the inner and outer disc,
respectively. Here, we see them as part of a non-axisymmetric kinematic
oscillation, and we map its azimuthal and vertical behaviour. We also
witness a new global arrangement of stars in the velocity plane of
the solar neighbourhood and in distant regions in which stars are
organised in thin substructures with the shape of circular arches
that are oriented approximately along the horizontal direction in the
U - V plane. Moreover, in distant regions, we see variations in the
velocity substructures more clearly than ever before, in particular,
variations in the velocity of the Hercules stream.
Conclusions:
Gaia DR2 provides the largest existing full 6D phase-space coordinates
catalogue. It also vastly increases the number of available distances
and transverse velocities with respect to Gaia DR1. Gaia DR2 offers
a great wealth of information on the Milky Way and reveals clear
non-axisymmetric kinematic signatures within the Galactic disc, for
instance. It is now up to the astronomical community to explore its
full potential.
Title: Gaia Data Release 2. Observational Hertzsprung-Russell diagrams
Authors: Gaia Collaboration; Babusiaux, C.; van Leeuwen, F.;
Barstow, M. A.; Jordi, C.; Vallenari, A.; Bossini, D.; Bressan,
A.; Cantat-Gaudin, T.; van Leeuwen, M.; Brown, A. G. A.; Prusti,
T.; de Bruijne, J. H. J.; Bailer-Jones, C. A. L.; Biermann, M.;
Evans, D. W.; Eyer, L.; Jansen, F.; Klioner, S. A.; Lammers, U.;
Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.;
Randich, S.; Sartoretti, P.; Siddiqui, H. I.; Soubiran, C.; Walton,
N. A.; Arenou, F.; Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.;
Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castañeda, J.; Chaoul,
L.; Cheek, N.; De Angeli, F.; Fabricius, C.; Guerra, R.; Holl, B.;
Masana, E.; Messineo, R.; Mowlavi, N.; Nienartowicz, K.; Panuzzo,
P.; Portell, J.; Riello, M.; Seabroke, G. M.; Tanga, P.; Thévenin,
F.; Gracia-Abril, G.; Comoretto, G.; Garcia-Reinaldos, M.; Teyssier,
D.; Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson,
K.; Berthier, J.; Blomme, R.; Burgess, P.; Busso, G.; Carry, B.;
Cellino, A.; Clementini, G.; Clotet, M.; Creevey, O.; Davidson,
M.; De Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant, C.;
Fernández-Hernández, J.; Fouesneau, M.; Frémat, Y.; Galluccio, L.;
García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.;
Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.;
Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.;
Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Löffler, W.;
Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.;
Mora, A.; Muinonen, K.; Osinde, J.; Pancino, E.; Pauwels, T.; Petit,
J. -M.; Recio-Blanco, A.; Richards, P. J.; Rimoldini, L.; Robin,
A. C.; Sarro, L. M.; Siopis, C.; Smith, M.; Sozzetti, A.; Süveges,
M.; Torra, J.; van Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart,
S.; Aerts, C.; Altavilla, G.; Álvarez, M. A.; Alvarez, R.; Alves,
J.; Anderson, R. I.; Andrei, A. H.; Anglada Varela, E.; Antiche, E.;
Antoja, T.; Arcay, B.; Astraatmadja, T. L.; Bach, N.; Baker, S. G.;
Balaguer-Núñez, L.; Balm, P.; Barache, C.; Barata, C.; Barbato,
D.; Barblan, F.; Barklem, P. S.; Barrado, D.; Barros, M.; Bartholomé
Muñoz, L.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete,
A.; Bertone, S.; Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.;
Boch, T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bouquillon, S.;
Bourda, G.; Bragaglia, A.; Bramante, L.; Breddels, M. A.; Brouillet,
N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.;
Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere,
R.; Cannizzaro, G.; Carballo, R.; Carlucci, T.; Carrasco, J. M.;
Casamiquela, L.; Castellani, M.; Castro-Ginard, A.; Charlot, P.;
Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan, G.; Cowell,
S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers, J.; Dafonte, C.;
Damerdji, Y.; Dapergolas, A.; David, P.; David, M.; de Laverny, P.;
De Luise, F.; De March, R.; de Martino, D.; de Souza, R.; de Torres,
A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado, A.; Delgado,
H. E.; Diakite, S.; Diener, C.; Distefano, E.; Dolding, C.; Drazinos,
P.; Durán, J.; Edvardsson, B.; Enke, H.; Eriksson, K.; Esquej, P.;
Eynard Bontemps, G.; Fabre, C.; Fabrizio, M.; Faigler, S.; Falcão,
A. J.; Farràs Casas, M.; Federici, L.; Fedorets, G.; Fernique,
P.; Figueras, F.; Filippi, F.; Findeisen, K.; Fonti, A.; Fraile,
E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti, S.; Garabato, D.;
García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel, A.; Gavras,
P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona,
S.; Giuffrida, G.; Glass, F.; Gomes, M.; Granvik, M.; Gueguen, A.;
Guerrier, A.; Guiraud, J.; Gutié, R.; Haigron, R.; Hatzidimitriou,
D.; Hauser, M.; Haywood, M.; Heiter, U.; Helmi, A.; Heu, J.; Hilger,
T.; Hobbs, D.; Hofmann, W.; Holland, G.; Huckle, H. E.; Hypki, A.;
Icardi, V.; Janßen, K.; Jevardat de Fombelle, G.; Jonker, P. G.;
Juhász, Á. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar, J.;
Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas, E.;
Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; López,
M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant,
J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall, D. J.;
Martino, M.; Marton, G.; Mary, N.; Massari, D.; Matijevič, G.; Mazeh,
T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Molina,
D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor, R.; Morbidelli,
R.; Morel, T.; Morris, D.; Mulone, A. F.; Muraveva, T.; Musella, I.;
Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane, W.; Ordénovic, C.;
Ordóñez-Blanco, D.; Osborne, P.; Pagani, C.; Pagano, I.; Pailler, F.;
Palacin, H.; Palaversa, L.; Panahi, A.; Pawlak, M.; Piersimoni, A. M.;
Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poujoulet, E.; Prša,
A.; Pulone, L.; Racero, E.; Ragaini, S.; Rambaux, N.; Ramos-Lerate,
M.; Regibo, S.; Reylé, C.; Riclet, F.; Ripepi, V.; Riva, A.; Rivard,
A.; Rixon, G.; Roegiers, T.; Roelens, M.; Romero-Gómez, M.; Rowell,
N.; Royer, F.; Ruiz-Dern, L.; Sadowski, G.; Sagristà Sellés, T.;
Sahlmann, J.; Salgado, J.; Salguero, E.; Sanna, N.; Santana-Ros, T.;
Sarasso, M.; Savietto, H.; Schultheis, M.; Sciacca, E.; Segol, M.;
Segovia, J. C.; Ségransan, D.; Shih, I. -C.; Siltala, L.; Silva,
A. F.; Smart, R. L.; Smith, K. W.; Solano, E.; Solitro, F.; Sordo,
R.; Soria Nieto, S.; Souchay, J.; Spagna, A.; Spoto, F.; Stampa,
U.; Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.; Stoev, H.;
Suess, F. F.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Tapiador,
D.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Terrett,
D.; Teyssandier, P.; Thuillot, W.; Titarenko, A.; Torra Clotet, F.;
Turon, C.; Ulla, A.; Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini,
G.; Valette, V.; van Elteren, A.; Van Hemelryck, E.; Vaschetto, M.;
Vecchiato, A.; Veljanoski, J.; Viala, Y.; Vicente, D.; Vogt, S.;
von Essen, C.; Voss, H.; Votruba, V.; Voutsinas, S.; Walmsley, G.;
Weiler, M.; Wertz, O.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.;
Žerjal, M.; Ziaeepour, H.; Zorec, J.; Zschocke, S.; Zucker, S.;
Zurbach, C.; Zwitter, T.
Bibcode: 2018A&A...616A..10G
Altcode: 2018arXiv180409378G
Context. Gaia Data Release 2 provides high-precision astrometry and
three-band photometry for about 1.3 billion sources over the full
sky. The precision, accuracy, and homogeneity of both astrometry and
photometry are unprecedented.
Aims: We highlight the power of
the Gaia DR2 in studying many fine structures of the Hertzsprung-Russell
diagram (HRD). Gaia allows us to present many different HRDs, depending
in particular on stellar population selections. We do not aim here
for completeness in terms of types of stars or stellar evolutionary
aspects. Instead, we have chosen several illustrative examples.
Methods: We describe some of the selections that can be made in Gaia
DR2 to highlight the main structures of the Gaia HRDs. We select both
field and cluster (open and globular) stars, compare the observations
with previous classifications and with stellar evolutionary tracks,
and we present variations of the Gaia HRD with age, metallicity, and
kinematics. Late stages of stellar evolution such as hot subdwarfs,
post-AGB stars, planetary nebulae, and white dwarfs are also analysed,
as well as low-mass brown dwarf objects.
Results: The Gaia HRDs
are unprecedented in both precision and coverage of the various Milky
Way stellar populations and stellar evolutionary phases. Many fine
structures of the HRDs are presented. The clear split of the white
dwarf sequence into hydrogen and helium white dwarfs is presented
for the first time in an HRD. The relation between kinematics and the
HRD is nicely illustrated. Two different populations in a classical
kinematic selection of the halo are unambiguously identified in the
HRD. Membership and mean parameters for a selected list of open
clusters are provided. They allow drawing very detailed cluster
sequences, highlighting fine structures, and providing extremely
precise empirical isochrones that will lead to more insight in
stellar physics.
Conclusions: Gaia DR2 demonstrates the
potential of combining precise astrometry and photometry for large
samples for studies in stellar evolution and stellar population
and opens an entire new area for HRD-based studies. The full
Table A.1 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/616/A10
Title: Gaia Data Release 2. The catalogue of radial velocity
standard stars
Authors: Soubiran, C.; Jasniewicz, G.; Chemin, L.; Zurbach, C.;
Brouillet, N.; Panuzzo, P.; Sartoretti, P.; Katz, D.; Le Campion,
J. -F.; Marchal, O.; Hestroffer, D.; Thévenin, F.; Crifo, F.; Udry,
S.; Cropper, M.; Seabroke, G.; Viala, Y.; Benson, K.; Blomme, R.;
Jean-Antoine, A.; Huckle, H.; Smith, M.; Baker, S. G.; Damerdji,
Y.; Dolding, C.; Frémat, Y.; Gosset, E.; Guerrier, A.; Guy, L. P.;
Haigron, R.; Janßen, K.; Plum, G.; Fabre, C.; Lasne, Y.; Pailler, F.;
Panem, C.; Riclet, F.; Royer, F.; Tauran, G.; Zwitter, T.; Gueguen,
A.; Turon, C.
Bibcode: 2018A&A...616A...7S
Altcode: 2018arXiv180409370S
Aims: The Radial Velocity Spectrometer (RVS) on board the
ESA satellite mission Gaia has no calibration device. Therefore, the
radial velocity zero point needs to be calibrated with stars that are
proved to be stable at a level of 300 m s-1 during the Gaia
observations.
Methods: We compiled a dataset of ~71 000 radial
velocity measurements from five high-resolution spectrographs. A
catalogue of 4813 stars was built by combining these individual
measurements. The zero point was established using asteroids.
Results: The resulting catalogue has seven observations per star on
average on a typical time baseline of 6 yr, with a median standard
deviation of 15 m s-1. A subset of the most stable stars
fulfilling the RVS requirements was used to establish the radial
velocity zero point provided in Gaia Data Release 2. The stars that were
not used for calibration are used to validate the RVS data. Based
on observations made at Observatoire de Haute Provence (CNRS), France,
at the Telescope Bernard Lyot (USR5026) operated by the Observatoire
Midi-Pyrénées, Université de Toulouse (Paul Sabatier) and CNRS,
France, at the Euler telescope operated by Observatoire de Genève
at La Silla, Chile, and on public data obtained from the ESO Science
Archive Facility. Tables of individual measurements and mean
velocities are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/616/A7
Title: Gaia Data Release 2. Kinematics of globular clusters and
dwarf galaxies around the Milky Way
Authors: Gaia Collaboration; Helmi, A.; van Leeuwen, F.; McMillan,
P. J.; Massari, D.; Antoja, T.; Robin, A. C.; Lindegren, L.;
Bastian, U.; Arenou, F.; Babusiaux, C.; Biermann, M.; Breddels,
M. A.; Hobbs, D.; Jordi, C.; Pancino, E.; Reylé, C.; Veljanoski,
J.; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne,
J. H. J.; Bailer-Jones, C. A. L.; Evans, D. W.; Eyer, L.; Jansen,
F.; Klioner, S. A.; Lammers, U.; Luri, X.; Mignard, F.; Panem,
C.; Pourbaix, D.; Randich, S.; Sartoretti, P.; Siddiqui, H. I.;
Soubiran, C.; Walton, N. A.; Cropper, M.; Drimmel, R.; Katz, D.;
Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castañeda, J.; Chaoul,
L.; Cheek, N.; De Angeli, F.; Fabricius, C.; Guerra, R.; Holl, B.;
Masana, E.; Messineo, R.; Mowlavi, N.; Nienartowicz, K.; Panuzzo,
P.; Portell, J.; Riello, M.; Seabroke, G. M.; Tanga, P.; Thévenin,
F.; Gracia-Abril, G.; Comoretto, G.; Garcia-Reinaldos, M.; Teyssier,
D.; Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson,
K.; Berthier, J.; Blomme, R.; Burgess, P.; Busso, G.; Carry, B.;
Cellino, A.; Clementini, G.; Clotet, M.; Creevey, O.; Davidson,
M.; De Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant, C.;
Fernández-Hernández, J.; Fouesneau, M.; Frémat, Y.; Galluccio, L.;
García-Torres, M.; González-Núñez, J.; González-Vidal, J. J.;
Gosset, E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison,
D. L.; Hernández, J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.;
Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.;
Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.; Löffler, W.;
Manteiga, M.; Marrese, P. M.; Martín-Fleitas, J. M.; Moitinho, A.;
Mora, A.; Muinonen, K.; Osinde, J.; Pauwels, T.; Petit, J. -M.;
Recio-Blanco, A.; Richards, P. J.; Rimoldini, L.; Sarro, L. M.;
Siopis, C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.; van
Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.;
Altavilla, G.; Álvarez, M. A.; Alvarez, R.; Alves, J.; Anderson,
R. I.; Andrei, A. H.; Anglada Varela, E.; Antiche, E.; Arcay, B.;
Astraatmadja, T. L.; Bach, N.; Baker, S. G.; Balaguer-Núñez, L.;
Balm, P.; Barache, C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem,
P. S.; Barrado, D.; Barros, M.; Barstow, M. A.; Bartholomé Muñoz,
S.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.;
Bertone, S.; Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch,
T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bossini, D.; Bouquillon,
S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Bressan, A.; Brouillet,
N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli, B.; Burlacu, A.;
Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau, E.; Cancelliere,
R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo, R.; Carlucci, T.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard, A.;
Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan, G.;
Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers, J.; Dafonte,
C.; Damerdji, Y.; Dapergolas, A.; David, P.; David, M.; de Laverny,
P.; De Luise, F.; De March, R.; de Martino, D.; de Souza, R.; de
Torres, A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado, A.;
Delgado, H. E.; Di Matteo, P.; Diakite, S.; Diener, C.; Distefano,
E.; Dolding, C.; Drazinos, P.; Durán, J.; Edvardsson, B.; Enke, H.;
Eriksson, K.; Esquej, P.; Eynard Bontemps, G.; Fabre, C.; Fabrizio,
M.; Faigler, S.; Falcão, A. J.; Farràs Casas, M.; Federici, L.;
Fedorets, G.; Fernique, P.; Figueras, F.; Filippi, F.; Findeisen, K.;
Fonti, A.; Fraile, E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti, S.;
Garabato, D.; García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel,
A.; Gavras, P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.;
Girona, S.; Giuffrida, G.; Glass, F.; Gomes, M.; Granvik, M.; Gueguen,
A.; Guerrier, A.; Guiraud, J.; Gutiérrez-Sánchez, R.; Hofmann,
W.; Holland, G.; Huckle, H. E.; Hypki, A.; Icardi, V.; Janßen, K.;
Jevardat de Fombelle, G.; Jonker, P. G.; Juhász, Á. L.; Julbe,
F.; Karampelas, A.; Kewley, A.; Klar, J.; Kochoska, A.; Kohley, R.;
Kolenberg, K.; Kontizas, M.; Kontizas, E.; Koposov, S. E.; Kordopatis,
G.; Kostrzewa-Rutkowska, Z.; Koubsky, P.; Lambert, S.; Lanza, A. F.;
Lasne, Y.; Lavigne, J. -B.; Le Fustec, Y.; Le Poncin-Lafitte, C.;
Lebreton, Y.; Leccia, S.; Leclerc, N.; Lecoeur-Taibi, I.; Lenhardt,
H.; Leroux, F.; Liao, S.; Licata, E.; Lindstrøm, H. E. P.; Lister,
T. A.; Livanou, E.; Lobel, A.; López, M.; Managau, S.; Mann, R. G.;
Mantelet, G.; Marchal, O.; Marchant, J. M.; Marconi, M.; Marinoni,
S.; Marschalkó, G.; Marshall, D. J.; Martino, M.; Marton, G.; Mary,
N.; Matijevič, G.; Mazeh, T.; Messina, S.; Michalik, D.; Millar,
N. R.; Molina, D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor,
R.; Morbidelli, R.; Morel, T.; Morris, D.; Mulone, A. F.; Muraveva,
T.; Musella, I.; Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane, W.;
Ordénovic, C.; Ordóñez-Blanco, D.; Osborne, P.; Pagani, C.; Pagano,
I.; Pailler, F.; Palacin, H.; Palaversa, L.; Panahi, A.; Pawlak, M.;
Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.;
Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.; Ragaini, S.; Rambaux,
N.; Ramos-Lerate, M.; Regibo, S.; Riclet, F.; Ripepi, V.; Riva, A.;
Rivard, A.; Rixon, G.; Roegiers, T.; Roelens, M.; Romero-Gómez, M.;
Rowell, N.; Royer, F.; Ruiz-Dern, L.; Sadowski, G.; Sagristà Sellés,
T.; Sahlmann, J.; Salgado, J.; Salguero, E.; Sanna, N.; Santana-Ros,
T.; Sarasso, M.; Savietto, H.; Schultheis, M.; Sciacca, E.; Segol,
M.; Segovia, J. C.; Ségransan, D.; Shih, I. -C.; Siltala, L.; Silva,
A. F.; Smart, R. L.; Smith, K. W.; Solano, E.; Solitro, F.; Sordo,
R.; Soria Nieto, S.; Souchay, J.; Spagna, A.; Spoto, F.; Stampa,
U.; Steele, I. A.; Steidelmüller, H.; Stephenson, C. A.; Stoev, H.;
Suess, F. F.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Tapiador,
D.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Terrett, D.;
Teyssandier, P.; Thuillot, W.; Titarenko, A.; Torra Clotet, F.;
Turon, C.; Ulla, A.; Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini,
G.; Valette, V.; van Elteren, A.; Van Hemelryck, E.; van Leeuwen,
M.; Vaschetto, M.; Vecchiato, A.; Viala, Y.; Vicente, D.; Vogt, S.;
von Essen, C.; Voss, H.; Votruba, V.; Voutsinas, S.; Walmsley, G.;
Weiler, M.; Wertz, O.; Wevems, T.; Wyrzykowski, Ł.; Yoldas, A.;
Žerjal, M.; Ziaeepour, H.; Zorec, J.; Zschocke, S.; Zucker, S.;
Zurbach, C.; Zwitter, T.
Bibcode: 2018A&A...616A..12G
Altcode: 2018arXiv180409381G
Note to the Readers: Following the publication of the corrigendum,
the article was corrected on 15 May 2020. Context.
Aims:
The goal of this paper is to demonstrate the outstanding quality
of the second data release of the Gaia mission and its power for
constraining many different aspects of the dynamics of the satellites
of the Milky Way. We focus here on determining the proper motions of
75 Galactic globular clusters, nine dwarf spheroidal galaxies, one
ultra-faint system, and the Large and Small Magellanic Clouds.
Methods: Using data extracted from the Gaia archive, we derived
the proper motions and parallaxes for these systems, as well as
their uncertainties. We demonstrate that the errors, statistical
and systematic, are relatively well understood. We integrated the
orbits of these objects in three different Galactic potentials, and
characterised their properties. We present the derived proper motions,
space velocities, and characteristic orbital parameters in various
tables to facilitate their use by the astronomical community.
Results: Our limited and straightforward analyses have allowed us
for example to (i) determine absolute and very precise proper motions
for globular clusters; (ii) detect clear rotation signatures in the
proper motions of at least five globular clusters; (iii) show that
the satellites of the Milky Way are all on high-inclination orbits,
but that they do not share a single plane of motion; (iv) derive a lower
limit for the mass of the Milky Way of 9.1-2.6+6.2
× 1011 M⊙ based on the assumption that the Leo
I dwarf spheroidal is bound; (v) derive a rotation curve for the Large
Magellanic Cloud based solely on proper motions that is competitive
with line-of-sight velocity curves, now using many orders of magnitude
more sources; and (vi) unveil the dynamical effect of the bar on the
motions of stars in the Large Magellanic Cloud.
Conclusions: All
these results highlight the incredible power of the Gaia astrometric
mission, and in particular of its second data release. Full
Table D.3 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/616/A12
Title: Gaia Data Release 2. Summary of the contents and survey
properties
Authors: Gaia Collaboration; Brown, A. G. A.; Vallenari, A.; Prusti,
T.; de Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.;
Biermann, M.; Evans, D. W.; Eyer, L.; Jansen, F.; Jordi, C.; Klioner,
S. A.; Lammers, U.; Lindegren, L.; Luri, X.; Mignard, F.; Panem,
C.; Pourbaix, D.; Randich, S.; Sartoretti, P.; Siddiqui, H. I.;
Soubiran, C.; van Leeuwen, F.; Walton, N. A.; Arenou, F.; Bastian,
U.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi, M. G.; Bakker,
J.; Cacciari, C.; Castañeda, J.; Chaoul, L.; Cheek, N.; De Angeli,
F.; Fabricius, C.; Guerra, R.; Holl, B.; Masana, E.; Messineo, R.;
Mowlavi, N.; Nienartowicz, K.; Panuzzo, P.; Portell, J.; Riello,
M.; Seabroke, G. M.; Tanga, P.; Thévenin, F.; Gracia-Abril, G.;
Comoretto, G.; Garcia-Reinaldos, M.; Teyssier, D.; Altmann, M.;
Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier,
J.; Blomme, R.; Burgess, P.; Busso, G.; Carry, B.; Cellino, A.;
Clementini, G.; Clotet, M.; Creevey, O.; Davidson, M.; De Ridder, J.;
Delchambre, L.; Dell'Oro, A.; Ducourant, C.; Fernández-Hernández,
J.; Fouesneau, M.; Frémat, Y.; Galluccio, L.; García-Torres,
M.; González-Núñez, J.; González-Vidal, J. J.; Gosset, E.; Guy,
L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.; Hernández,
J.; Hestroffer, D.; Hodgkin, S. T.; Hutton, A.; Jasniewicz, G.;
Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.; Krone-Martins, A.;
Lanzafame, A. C.; Lebzelter, T.; Löffler, W.; Manteiga, M.; Marrese,
P. M.; Martín-Fleitas, J. M.; Moitinho, A.; Mora, A.; Muinonen, K.;
Osinde, J.; Pancino, E.; Pauwels, T.; Petit, J. -M.; Recio-Blanco, A.;
Richards, P. J.; Rimoldini, L.; Robin, A. C.; Sarro, L. M.; Siopis,
C.; Smith, M.; Sozzetti, A.; Süveges, M.; Torra, J.; van Reeven, W.;
Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.; Altavilla, G.;
Álvarez, M. A.; Alvarez, R.; Alves, J.; Anderson, R. I.; Andrei,
A. H.; Anglada Varela, E.; Antiche, E.; Antoja, T.; Arcay, B.;
Astraatmadja, T. L.; Bach, N.; Baker, S. G.; Balaguer-Núñez, L.;
Balm, P.; Barache, C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem,
P. S.; Barrado, D.; Barros, M.; Barstow, M. A.; Bartholomé Muñoz,
S.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete, A.;
Bertone, S.; Bianchi, L.; Bienaymé, O.; Blanco-Cuaresma, S.; Boch,
T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bossini, D.; Bouquillon,
S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Breddels, M. A.; Bressan,
A.; Brouillet, N.; Brüsemeister, T.; Brugaletta, E.; Bucciarelli,
B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo,
R.; Carlucci, T.; Carrasco, J. M.; Casamiquela, L.; Castellani, M.;
Castro-Ginard, A.; Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.;
Costigan, G.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypers,
J.; Dafonte, C.; Damerdji, Y.; Dapergolas, A.; David, P.; David, M.;
de Laverny, P.; De Luise, F.; De March, R.; de Martino, D.; de Souza,
R.; de Torres, A.; Debosscher, J.; del Pozo, E.; Delbo, M.; Delgado,
A.; Delgado, H. E.; Di Matteo, P.; Diakite, S.; Diener, C.; Distefano,
E.; Dolding, C.; Drazinos, P.; Durán, J.; Edvardsson, B.; Enke, H.;
Eriksson, K.; Esquej, P.; Eynard Bontemps, G.; Fabre, C.; Fabrizio,
M.; Faigler, S.; Falcão, A. J.; Farràs Casas, M.; Federici, L.;
Fedorets, G.; Fernique, P.; Figueras, F.; Filippi, F.; Findeisen, K.;
Fonti, A.; Fraile, E.; Fraser, M.; Frézouls, B.; Gai, M.; Galleti, S.;
Garabato, D.; García-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel,
A.; Gavras, P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.;
Girona, S.; Giuffrida, G.; Glass, F.; Gomes, M.; Granvik, M.; Gueguen,
A.; Guerrier, A.; Guiraud, J.; Gutiérrez-Sánchez, R.; Haigron, R.;
Hatzidimitriou, D.; Hauser, M.; Haywood, M.; Heiter, U.; Helmi, A.;
Heu, J.; Hilger, T.; Hobbs, D.; Hofmann, W.; Holland, G.; Huckle,
H. E.; Hypki, A.; Icardi, V.; Janßen, K.; Jevardat de Fombelle, G.;
Jonker, P. G.; Juhász, Á. L.; Julbe, F.; Karampelas, A.; Kewley,
A.; Klar, J.; Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.;
Kontizas, E.; Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.;
Koubsky, P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.;
Le Fustec, Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.;
Leclerc, N.; Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.;
Licata, E.; Lindstrøm, H. E. P.; Lister, T. A.; Livanou, E.; Lobel,
A.; López, M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.;
Marchant, J. M.; Marconi, M.; Marinoni, S.; Marschalkó, G.; Marshall,
D. J.; Martino, M.; Marton, G.; Mary, N.; Massari, D.; Matijevič,
G.; Mazeh, T.; McMillan, P. J.; Messina, S.; Michalik, D.; Millar,
N. R.; Molina, D.; Molinaro, R.; Molnár, L.; Montegriffo, P.; Mor,
R.; Morbidelli, R.; Morel, T.; Morris, D.; Mulone, A. F.; Muraveva,
T.; Musella, I.; Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane,
W.; Ordénovic, C.; Ordóñez-Blanco, D.; Osborne, P.; Pagani, C.;
Pagano, I.; Pailler, F.; Palacin, H.; Palaversa, L.; Panahi, A.;
Pawlak, M.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.; Plum,
G.; Poggio, E.; Poujoulet, E.; Prša, A.; Pulone, L.; Racero, E.;
Ragaini, S.; Rambaux, N.; Ramos-Lerate, M.; Regibo, S.; Reylé, C.;
Riclet, F.; Ripepi, V.; Riva, A.; Rivard, A.; Rixon, G.; Roegiers,
T.; Roelens, M.; Romero-Gómez, M.; Rowell, N.; Royer, F.; Ruiz-Dern,
L.; Sadowski, G.; Sagristà Sellés, T.; Sahlmann, J.; Salgado, J.;
Salguero, E.; Sanna, N.; Santana-Ros, T.; Sarasso, M.; Savietto, H.;
Schultheis, M.; Sciacca, E.; Segol, M.; Segovia, J. C.; Ségransan, D.;
Shih, I. -C.; Siltala, L.; Silva, A. F.; Smart, R. L.; Smith, K. W.;
Solano, E.; Solitro, F.; Sordo, R.; Soria Nieto, S.; Souchay, J.;
Spagna, A.; Spoto, F.; Stampa, U.; Steele, I. A.; Steidelmüller, H.;
Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej, J.; Szabados, L.;
Szegedi-Elek, E.; Tapiador, D.; Taris, F.; Tauran, G.; Taylor,
M. B.; Teixeira, R.; Terrett, D.; Teyssandier, P.; Thuillot, W.;
Titarenko, A.; Torra Clotet, F.; Turon, C.; Ulla, A.; Utrilla, E.;
Uzzi, S.; Vaillant, M.; Valentini, G.; Valette, V.; van Elteren,
A.; Van Hemelryck, E.; van Leeuwen, M.; Vaschetto, M.; Vecchiato,
A.; Veljanoski, J.; Viala, Y.; Vicente, D.; Vogt, S.; von Essen, C.;
Voss, H.; Votruba, V.; Voutsinas, S.; Walmsley, G.; Weiler, M.; Wertz,
O.; Wevers, T.; Wyrzykowski, Ł.; Yoldas, A.; Žerjal, M.; Ziaeepour,
H.; Zorec, J.; Zschocke, S.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2018A&A...616A...1G
Altcode: 2018arXiv180409365G
Context. We present the second Gaia data release, Gaia DR2, consisting
of astrometry, photometry, radial velocities, and information on
astrophysical parameters and variability, for sources brighter than
magnitude 21. In addition epoch astrometry and photometry are provided
for a modest sample of minor planets in the solar system.
Aims: A summary of the contents of Gaia DR2 is presented, accompanied
by a discussion on the differences with respect to Gaia DR1 and
an overview of the main limitations which are still present in
the survey. Recommendations are made on the responsible use of
Gaia DR2 results.
Methods: The raw data collected with the
Gaia instruments during the first 22 months of the mission have
been processed by the Gaia Data Processing and Analysis Consortium
(DPAC) and turned into this second data release, which represents
a major advance with respect to Gaia DR1 in terms of completeness,
performance, and richness of the data products.
Results: Gaia
DR2 contains celestial positions and the apparent brightness in G for
approximately 1.7 billion sources. For 1.3 billion of those sources,
parallaxes and proper motions are in addition available. The sample
of sources for which variability information is provided is expanded
to 0.5 million stars. This data release contains four new elements:
broad-band colour information in the form of the apparent brightness
in the GBP (330-680 nm) and GRP (630-1050 nm)
bands is available for 1.4 billion sources; median radial velocities for
some 7 million sources are presented; for between 77 and 161 million
sources estimates are provided of the stellar effective temperature,
extinction, reddening, and radius and luminosity; and for a pre-selected
list of 14 000 minor planets in the solar system epoch astrometry
and photometry are presented. Finally, Gaia DR2 also represents a
new materialisation of the celestial reference frame in the optical,
the Gaia-CRF2, which is the first optical reference frame based solely
on extragalactic sources. There are notable changes in the photometric
system and the catalogue source list with respect to Gaia DR1, and we
stress the need to consider the two data releases as independent.
Conclusions: Gaia DR2 represents a major achievement for the Gaia
mission, delivering on the long standing promise to provide parallaxes
and proper motions for over 1 billion stars, and representing a first
step in the availability of complementary radial velocity and source
astrophysical information for a sample of stars in the Gaia survey
which covers a very substantial fraction of the volume of our galaxy.
Title: VizieR Online Data Catalog: 46 open clusters GaiaDR2 HR
diagrams (Gaia Collaboration, 2018)
Authors: Gaia Collaboration; Babusiaux, C.; van Leeuwen, F.;
Barstow; M., A.; Jordi, C.; Vallenari, A.; Bossini, A.; Bressan,
A.; Cantat-Gaudin, T.; van Leeuwen, M.; Brown, A. G. A.; Prusti,
T.; de Bruijne, J. H. J.; Bailer-Jones, C. A. L.; Biermann, M.;
Evans, D. W.; Eyer, L.; Jansen, F.; Klioner, S. A.; Lammers, U.;
Lindegren, L.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.;
Randich, S.; Sartoretti, P.; Siddiqui, H. I.; Soubiran, C.; Walton,
N. A.; Arenou, F.; Bastian, U.; Cropper, M.; Drimmel, R.; Katz, D.;
Lattanzi, M. G.; Bakker, J.; Cacciari, C.; Castaneda, J.; Chaoul,
L.; Cheek, N.; de Angeli, F.; Fabricius, C.; Guerra, R.; Holl, B.;
Masana, E.; Messineo, R.; Mowlavi, N.; Nienartowicz, K.; Panuzzo,
P.; Portell, J.; Riello, M.; Seabroke, G. M.; Tanga, P.; Thevenin,
F.; Gracia-Abril, G.; Comoretto, G.; Garcia-Reinaldos, M.; Teyssier,
D.; Altmann, M.; Andrae, R.; Audard, M.; Bellas-Velidis, I.; Benson,
K.; Berthier, J.; Blomme, R.; Burgess, P.; Busso, G.; Carry, B.;
Cellino, A.; Clementini, G.; Clotet, M.; Creevey, O.; Davidson,
M.; De Ridder, J.; Delchambre, L.; Dell'Oro, A.; Ducourant, C.;
Fernandez-Hernandez, J.; Fouesneau, M.; Fremat, Y.; Galluccio, L.;
Garcia-Torres, M.; Gonzalez-Nunez, J.; Gonzalez-Vidal, J. J.; Gosset,
E.; Guy, L. P.; Halbwachs, J. -L.; Hambly, N. C.; Harrison, D. L.;
Hernandez, J.; Hestroer, D.; Hodgkin, S. T.; Hutton, A.; Jasniewicz,
G.; Jean-Antoine-Piccolo, A.; Jordan, S.; Korn, A. J.; Krone-Martins,
A.; Lanzafame, A. C.; Lebzelter, T.; Loeer, W.; Manteiga, M.; Marrese,
P. M.; Martin-Fleitas, J. M.; Moitinho, A.; Mora, A.; Muinonen, K.;
Osinde, J.; Pancino, E.; Pauwels, T.; Petit, J. -M.; Recio-Blanco, A.;
Richards, P. J.; Rimoldini, L.; Robin, A. C.; Sarro, L. M.; Siopis,
C.; Smith, M.; Sozzetti, A.; Sueveges, M.; Torra, J.; van Reeven, W.;
Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts, C.; Altavilla, G.;
Alvarez, M. A.; Alvarez, R.; Alves, J.; Anderson, R. I.; Andrei, A. H.;
Anglada Varela, E.; Antiche, E.; Antoja, T.; Arcay, B.; Astraatmadja,
T. L.; Bach, N.; Baker, S. G.; Balaguer-Nunez, L.; Balm, P.; Barache,
C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem, P. S.; Barrado,
D.; Barros, M.; Bartholome Munoz, S.; Bassilana, J. -L.; Becciani, U.;
Bellazzini, M.; Berihuete, A.; Bertone, S.; Bianchi, L.; Bienayme, O.;
Blanco-Cuaresma, S.; Boch, T.; Boeche, C.; Bombrun, A.; Borrachero,
R.; Bouquillon, S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Breddels,
M. A.; Brouillet, N.; Bruesemeister, T.; Brugaletta, E.; Bucciarelli,
B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caau,
E.; Cancelliere, R.; Cannizzaro, G.; Carballo, R.; Carlucci, T.;
Carrasco, J. M.; Casamiquela, L.; Castellani, M.; Castro-Ginard,
A.; Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza, G.; Costigan,
G.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.; Cuypersy, J.;
Dafonte, C.; Damerdji, Y.; Dapergolas, A.; David, P.; David, M.; de
Laverny, P.; de Luise, F.; de March, R.; de Martino, D.; de Souza,
R.; de Torres, A.; Debosscher, J.; Del Pozo, E.; Delbo, M.; Delgado,
A.; Delgado, H. E.; Diakite, S.; Diener, C.; Distefano, E.; Dolding,
C.; Drazinos, P.; Duran, J.; Edvardsson, B.; Enke, H.; Eriksson, K.;
Esquej, P.; Eynard Bontemps, G.; Fabre, C.; Fabrizio, M.; Faigler,
S.; Falcao, A. J.; Farras Casas, M.; Federici, L.; Fedorets, G.;
Fernique, P.; Figueras, F.; Filippi, F.; Findeisen, K.; Fonti, A.;
Fraile, E.; Fraser, M.; Frezouls, B.; Gai, M.; Galleti, S.; Garabato,
D.; Garcia-Sedano, F.; Garofalo, A.; Garralda, N.; Gavel, A.; Gavras,
P.; Gerssen, J.; Geyer, R.; Giacobbe, P.; Gilmore, G.; Girona, S.;
Giurida, G.; Glass, F.; Gomes, M.; Granvik, M.; Gueguen, A.; Guerrier,
A.; Guiraud, J.; Gutierrez-Sanchez, R.; Haigron, R.; Hatzidimitriou,
D.; Hauser, M.; Haywood, M.; Heiter, U.; Helmi, A.; Heu, J.; Hilger,
T.; Hobbs, D.; Hofmann, W.; Holland, G.; Huckle, H. E.; Hypki, A.;
Icardi, V.; Janssen, K.; Jevardat de Fombelle, G.; Jonker, P. G.;
Juhasz, A. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar, J.;
Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas, E.;
Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky, P.;
Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrom, H. E. P.; Lister, T. A.; Livanou, E.; Lobel, A.; Lopez, M.;
Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant, J. M.;
Marconi, M.; Marinoni, S.; Marschalko, G.; Marshall, D. J.; Martino,
M.; Marton, G.; Mary, N.; Massari, D.; Matijevi?C, G.; Mazeh, T.;
McMillan, P. J.; Messina, S.; Michalik, D.; Millar, N. R.; Molina,
D.; Molinaro, R.; Molnar, L.; Montegrio, P.; Mor, R.; Morbidelli,
R.; Morel, T.; Morris, D.; Mulone, A. F.; Muraveva, T.; Musella, I.;
Nelemans, G.; Nicastro, L.; Noval, L.; O'Mullane, W.; Ordenovic, C.;
Ordonez-Blanco, D.; Osborne, P.; Pagani, C.; Pagano, I.; Pailler, F.;
Palacin, H.; Palaversa, L.; Panahi, A.; Pawlak, M.; Piersimoni, A. M.;
Pineau, F. -X.; Plachy, E.; Plum, G.; Poggio, E.; Poujoulet, E.; Prsa,
A.; Pulone, L.; Racero, E.; Ragaini, S.; Rambaux, N.; Ramos-Lerate,
M.; Regibo, S.; Reyle, C.; Riclet, F.; Ripepi, V.; Riva, A.; Rivard,
A.; Rixon, G.; Roegiers, T.; Roelens, M.; Romero-Gomez, M.; Rowell,
N.; Royer, F.; Ruiz-Dern, L.; Sadowski, G.; Sagrista Selles, T.;
Sahlmann, J.; Salgado, J.; Salguero, E.; Sanna, N.; Santana-Ros,
T.; Sarasso, M.; Savietto, H.; Schultheis, M.; Sciacca, E.; Segol,
M.; Segovia, J. C.; Segransan, D.; Shih, I. -C.; Siltala, L.; Silva,
A. F.; Smart, R. L.; Smith, K. W.; Solano, E.; Solitro, F.; Sordo,
R.; Soria Nieto, S.; Souchay, J.; Spagna, A.; Spoto, F.; Stampa,
U.; Steele, I. A.; Steidelmueller, H.; Stephenson, C. A.; Stoev, H.;
Suess, F. F.; Surdej, J.; Szabados, L.; Szegedi-Elek, E.; Tapiador,
D.; Taris, F.; Tauran, G.; Taylor, M. B.; Teixeira, R.; Terrett, D.;
Teyssandier, P.; Thuillot, W.; Titarenko, A.; Torra Clotet, F.; Turon,
C.; Ulla, A.; Utrilla, E.; Uzzi, S.; Vaillant, M.; Valentini, G.;
Valette, V.; van Elteren, A.; van Hemelryck, E.; Vaschetto, M.;
Vecchiato, A.; Veljanoski, J.; Viala, Y.; Vicente, D.; Vogt, S.;
von Essen, C.; Voss, H.; Votruba, V.; Voutsinas, S.; Walmsley, G.;
Weiler, M.; Wertz, O.; Wevers, T.; Wyrzykowski, L.; Yoldas, A.; Zerjal,
M.; Ziaeepour, H.; Zorec, J.; Zschocke, S.; Zucker, S.; Zurbach, C.;
Zwitter, T.
Bibcode: 2018yCat..36160010G
Altcode:
We have determined the membership of 46 open clusters. For the nine
clusters within 250pc we determined optimised parallaxes based on
the combined information extracted from the measured parallax and
proper motion values. These clusters are : in Tables A1a & A3:
alphaPer, Blanco1, ComaBer, Hyades, IC2391, IC2602, NGC2451A, Pleiades,
Praesepe. The remaining 37 clusters are in Table A1b & A4: Coll140,
IC4651, IC4665, IC4725, IC4756, NGC0188, NGC0752, NGC0869, NGC0884,
NGC1039, NGC1901, NGC2158, NGC2168, NGC2232, NGC2323, NGC2360, NGC2422,
NGC2423, NGC2437, NGC2447, NGC2516, NGC2547, NGC2548, NGC2682, NGC3228,
NGC3532, NGC6025, NGC6281, NGC6405, NGC6475, NGC6633, NGC6774, NGC6793,
NGC7092, Stock2, Trump02, Trump10. (4 data files).
Title: VizieR Online Data Catalog: Gaia DR2 sources in GC and dSph
(Gaia Collaboration+, 2018)
Authors: Gaia Collaboration; Helmi, A.; van Leeuwen, F.; Mc
Millan, P. J.; Massari, D.; Antoja, T.; Robin, A. C.; Lindegren,
L.; Bastian, U.; Arenou, F.; Babusiaux, C.; Biermann, M.; Breddels,
M. A.; Hobbs, D.; Jordi, C.; Pancino, E.; Reyle, C.; Veljanoski, J.;
Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.;
Bailer-Jones, C. A. L.; Evans, D. W.; Eyer, L.; Jansen, F.; Klioner,
S. A.; Lammers, U.; Luri, X.; Mignard, F.; Panem, C.; Pourbaix, D.;
Randich, S.; Sartoretti, P.; Siddiqui, H. I.; Soubiran, C.; Walton,
N. A.; Cropper, M.; Drimmel, R.; Katz, D.; Lattanzi, M. G.; Bakker,
J.; Cacciari, C.; Castaneda, J.; Chaoul, L.; Cheek, N.; de Angeli,
F.; Fabricius, C.; Guerra, R.; Holl, B.; Masana, E.; Messineo, R.;
Mowlavi, N.; Nienartowicz, K.; Panuzzo, P.; Portell, J.; Riello, M.;
Seabroke, G. M.; Tanga, P.; Thevenin, F.; Gracia-Abril, G.; Comoretto,
G.; Garcia-Reinaldos, M.; Teyssier, D.; Altmann, M.; Andrae, R.;
Audard, M.; Bellas-Velidis, I.; Benson, K.; Berthier, J.; Blomme,
R.; Burgess, P.; Busso, G.; Carry, B.; Cellino, A.; Clementini, G.;
Clotet, M.; ! Creevey, O.; Davidson, M.; De Ridder, J.; Delchambre,
L.; Dell'Oro, A.; Ducourant, C.; Fernandez-Hernandez, J.; Fouesneau,
M.; Fremat, Y.; Galluccio, L.; Garcia-Torres, M.; Gonzalez-Nunez,
J.; Gonzalez-Vidal, J. J.; Gosset, E.; Guy, L. P.; Halbwachs, J. -L.;
Hambly, N. C.; Harrison, D. L.; Hernandez, J.; Hestroffer, D.; Hodgkin,
S. T.; Hutton, A.; Jasniewicz, G.; Jean-Antoine-Piccolo, A.; Jordan,
S.; Korn, A. J.; Krone-Martins, A.; Lanzafame, A. C.; Lebzelter, T.;
Loeffler, W.; Manteiga, M.; Marrese, P. M.; Martin-Fleitas, J. M.;
Moitinho, A.; Mora, A.; Muinonen, K.; Osinde, J.; Pauwels, T.; Petit,
J. -M.; Recio-Blanco, A.; Richards, P. J.; Rimoldini, L.; Sarro,
L. M.; Siopis, C.; Smith, M.; Sozzetti, A.; Sueveges, M.; Torra, J.;
van Reeven, W.; Abbas, U.; Abreu Aramburu, A.; Accart, S.; Aerts,
C.; Altavilla, G.; Alvarez, M. A.; Alvarez, R.; Alves, J.; Anderson,
R. I.; Andrei, A. H.; Anglada Varela, E.; Antiche, E.; Arcay, B.;
Astraatmadja, T. L.; Bach, N.; Baker, S. G.; Balaguer-Nunez, L.;
Balm, P.; Barache, C.; Barata, C.; Barbato, D.; Barblan, F.; Barklem,
P. S.; Barra! Do, D.; Ba Rros, M.; Barstow, M. A.; Bartholome Munoz,
S.; Bassilana, J. -L.; Becciani, U.; Bellazzini, M.; Berihuete,
A.; Bertone, S.; Bianchi, L.; Bienayme, O.; Blanco-Cuaresma, S.;
Boch, T.; Boeche, C.; Bombrun, A.; Borrachero, R.; Bossini, D.;
Bouquillon, S.; Bourda, G.; Bragaglia, A.; Bramante, L.; Bressan,
A.; Brouillet, N.; Bruesemeister, T.; Brugaletta, E.; Bucciarelli,
B.; Burlacu, A.; Busonero, D.; Butkevich, A. G.; Buzzi, R.; Caffau,
E.; Cancelliere, R.; Cannizzaro, G.; Cantat-Gaudin, T.; Carballo,
R.; Carlucci, T.; Carrasco, J. M.; Casamiquela, L.; Castellani, M.;
Castro-Ginard, A.; Charlot, P.; Chemin, L.; Chiavassa, A.; Cocozza,
G.; Costigan, G.; Cowell, S.; Crifo, F.; Crosta, M.; Crowley, C.;
Cuypers, J.; Dafonte, C.; Damerdji, Y.; Dapergolas, A.; David, P.;
David, M.; de Laverny, P.; de Luise, F.; de March, R.; de Martino,
D.; de Souza, R.; de Torres, A.; Debosscher, J.; Del Pozo, E.; Delbo,
M.; Delgado, A.; Delgado, H. E.; Di Matteo, P.; Diakite, S.; Diener,
C.; Distefano, E.; Dolding, C.; Drazinos, P.; Duran, J.; Edvardsson,
B.; Enke, H.; Eriks! Son, K.; E Squej, P.; Eynard Bontemps, G.;
Fabre, C.; Fabrizio, M.; Faigler, S.; Falcao, A. J.; Farras Casas,
M.; Federici, L.; Fedorets, G.; Fernique, P.; Figueras, F.; Filippi,
F.; Findeisen, K.; Fonti, A.; Fraile, E.; Fraser, M.; Frezouls, B.;
Gai, M.; Galleti, S.; Garabato, D.; Garcia-Sedano, F.; Garofalo,
A.; Garralda, N.; Gavel, A.; Gavras, P.; Gerssen, J.; Geyer, R.;
Giacobbe, P.; Gilmore, G.; Girona, S.; Giuffrida, G.; Glass, F.;
Gomes, M.; Granvik, M.; Gueguen, A.; Guerrier, A.; Guiraud, J.;
Gutierrez-Sanchez, R.; Hofmann, W.; Holland, G.; Huckle, H. E.;
Hypki, A.; Icardi, V.; Janssen, K.; Jevardat de Fombelle, G.; Jonker,
P. G.; Juhasz, A. L.; Julbe, F.; Karampelas, A.; Kewley, A.; Klar,
J.; Kochoska, A.; Kohley, R.; Kolenberg, K.; Kontizas, M.; Kontizas,
E.; Koposov, S. E.; Kordopatis, G.; Kostrzewa-Rutkowska, Z.; Koubsky,
P.; Lambert, S.; Lanza, A. F.; Lasne, Y.; Lavigne, J. -B.; Le Fustec,
Y.; Le Poncin-Lafitte, C.; Lebreton, Y.; Leccia, S.; Leclerc, N.;
Lecoeur-Taibi, I.; Lenhardt, H.; Leroux, F.; Liao, S.; Licata, E.;
Lindstrom, H. E. P.; Lister, T. A.; ! Livanou, E.; Lobel, A.; Lopez,
M.; Managau, S.; Mann, R. G.; Mantelet, G.; Marchal, O.; Marchant,
J. M.; Marconi, M.; Marinoni, S.; Marschalko, G.; Marshall, D. J.;
Martino, M.; Marton, G.; Mary, N.; Matijevic, G.; Mazeh, T.; Messina,
S.; Michalik, D.; Millar, N. R.; Molina, D.; Molinaro, R.; Molnar,
L.; Montegriffo, P.; Mor, R.; Morbidelli, R.; Morel, T.; Morris, D.;
Mulone, A. F.; Muraveva, T.; Musella, I.; Nelemans, G.; Nicastro, L.;
Noval, L.; O'Mullane, W.; Ordenovic, C.; Ordonez-Blanco, D.; Osborne,
P.; Pagani, C.; Pagano, I.; Pailler, F.; Palacin, H.; Palaversa, L.;
Panahi, A.; Pawlak, M.; Piersimoni, A. M.; Pineau, F. -X.; Plachy, E.;
Plum, G.; Poggio, E.; Poujoulet, E.; Prsa, A.; Pulone, L.; Racero, E.;
Ragaini, S.; Rambaux, N.; Ramos-Lerate, M.; Regibo, S.; Riclet, F.;
Ripepi, V.; Riva, A.; Rivard, A.; Rixon, G.; Roegiers, T.; Roelens,
M.; Romero-Gomez, M.; Rowell, N.; Royer, F.; Ruiz-Dern, L.; Sadowski,
G.; Sagrista Selles, T.; Sahlmann, J.; Salgado, J.; Salguero, E.;
Sanna, N.; Santana-Ros, T.; Sarasso, M.; Savietto, H.; Schultheis,
M.; Sciacca, E.; Segol !, M.; Segov, Ia J. C.; Segransan, D.; Shih,
I. -C.; Siltala, L.; Silva, A. F.; Smart, R. L.; Smith, K. W.;
Solano, E.; Solitro, F.; Sordo, R.; Soria Nieto, S.; Souchay, J.;
Spagna, A.; Spoto, F.; Stampa, U.; Steele, I. A.; Steidelmueller, H.;
Stephenson, C. A.; Stoev, H.; Suess, F. F.; Surdej, J.; Szabados, L.;
Szegedi-Elek, E.; Tapiador, D.; Taris, F.; Tauran, G.; Taylor, M. B.;
Teixeira, R.; Terrett, D.; Teyssandier, P.; Thuillot, W.; Titarenko,
A.; Torra Clotet, F.; Turon, C.; Ulla, A.; Utrilla, E.; Uzzi,
S.; Vaillant, M.; Valentini, G.; Valette, V.; van Elteren, A.;
van Hemelryck, E.; van Leeuwen, M.; Vaschetto, M.; Vecchiato, A.;
Viala, Y.; Vicente, D.; Vogt, S.; von Essen, C.; Voss, H.; Votruba,
V.; Voutsinas, S.; Walmsley, G.; Weiler, M.; Wertz, O.; Wevems, T.;
Wyrzykowski, L.; Yoldas, A.; Zerjal, M.; Ziaeepour, H.; Zorec, J.;
Zschocke, S.; Zucker, S.; Zurbach, C.; Zwitter, T.
Bibcode: 2018yCat..36160012G
Altcode:
The files contains lists of possible members of each of the objects
(75 globular clusters, 9 dwarf spheroidal galaxies, the Bootes I UFD,
the LMC and SMC). The stars in these lists have been selected and used
to determine the astrometric parameters of the corresponding objects
following either the procedures described in Sec. 2.1 (for the clusters
and dwarfs) or in Sec. 2.2 (for the LMC and SMC). The first column is
the "source_id" as given by Gaia, the ra and declination of the star in
degrees, and its G-band magnitude (known as "photgmean_mag"
in the Gaia archive). (2 data files).
Title: Fibre optical spectroscopy and sensing innovation at innoFSPEC
Potsdam
Authors: Haynes, Roger; Reich, Oliver; Rambold, William; Hass, Roland;
Janssen, Katja
Bibcode: 2010SPIE.7739E..4JH
Altcode: 2010SPIE.7739E.145H
In October 2009, an interdisciplinary centre for fibre spectroscopy and
sensing, innoFSPEC Potsdam, has been established as joint initiative
of the Astrophysikalisches Institut Potsdam (AIP) and the Physical
Chemistry group of Potsdam University (UPPC), Germany. The centre
focuses on fundamental research in the two fields of fibre-coupled
multi-channel spectroscopy and optical fibre-based sensing. Thanks
to its interdisciplinary approach, the complementary methodologies of
astrophysics on the one hand, and physical chemistry on the other hand,
are expected to spawn synergies that otherwise would not normally
become available in more standard research programmes. innoFSPEC
Potsdam targets future innovations for next generation astrophysical
instrumentation, environmental analysis, manufacturing control
and process analysis, medical diagnostics, non-invasive imaging
spectroscopy, biopsy, genomics/proteomics, high throughput screening,
and related applications.
Title: IQLAC: a data analysis system for the NIRSpec on-ground
test campaign
Authors: Gerssen, Joris; Janssen, Katja; Meeus, Gwendolyn; Hupfer,
Werner; Gnata, Xavier; Ferruit, Pierre; Roth, Martin; Mosner, Peter;
de Marchi, Guido; Becker, Thomas
Bibcode: 2008SPIE.7010E..3HG
Altcode: 2008SPIE.7010E.140G
The future James Webb Space Telescope (JWST), developed jointly by
the American, European and Canadian space agencies (NASA, ESA and
CSA), is scheduled for launch in 2013. The near-infrared spectrograph
NIRSpec will be a major element of its instrument suite and is built by
EADS Astrium for ESA. NIRSpec is a multiobject spectrograph allowing
astronomers to obtain the spectra of more than one hundred objects
in a single exposure. NIRSpec is currently under construction and,
when finished, will be subjected to a stringent onground test campaign
to verify its performance. These tests are conducted in collaboration
with ESA. A rapid and reliable system to handle and analyse the data is
crucial in this phase as the time available to run the cryogenic tests
is limited. To facilitate this process we are developing a toolbox
of dedicated algorithms and interactive visualisation modules. These
standalone modules form the basis of the Instrument Quick Look Analysis
and Calibration (IQLAC) software. Individual workflows, optimized
for specific tests, can then be generated efficiently using this
toolbox. Furthermore, this set of dedicated algorithms will provide a
reference frame for the development of the operational data processing
software by ESA.
Title: The solar chromosphere at high resolution with IBIS. I. New
insights from the Ca II 854.2 nm line
Authors: Cauzzi, G.; Reardon, K. P.; Uitenbroek, H.; Cavallini, F.;
Falchi, A.; Falciani, R.; Janssen, K.; Rimmele, T.; Vecchio, A.;
Wöger, F.
Bibcode: 2008A&A...480..515C
Altcode: 2007arXiv0709.2417C
Context: The chromosphere remains a poorly understood part of the solar
atmosphere, as current modeling and observing capabilities are still
ill-suited to investigating its fully 3-dimensional nature in depth. In
particular, chromospheric observations that can preserve high spatial
and temporal resolution while providing spectral information over
extended fields of view are still very scarce.
Aims: In this
paper, we seek to establish the suitability of imaging spectroscopy
performed in the Ca II 854.2 nm line as a means of investigating
the solar chromosphere at high resolution.
Methods: We utilize
monochromatic images obtained with the Interferometric BIdimensional
Spectrometer (IBIS) at multiple wavelengths within the Ca II 854.2 nm
line and over several quiet areas. We analyze both the morphological
properties derived from narrow-band monochromatic images and the
average spectral properties of distinct solar features such as network
points, internetwork areas, and fibrils.
Results: The spectral
properties derived over quiet-Sun targets are in full agreement with
earlier results obtained with fixed-slit spectrographic observations,
highlighting the reliability of the spectral information obtained
with IBIS. Furthermore, the very narrowband IBIS imaging reveals very
clearly the dual nature of the Ca II 854.2 nm line. Its outer wings
gradually sample the solar photosphere, while the core is a purely
chromospheric indicator. The latter displays a wealth of fine structures
including bright points akin to the Ca II H{2V} and K{2V} grains, and
as fibrils originating from even the smallest magnetic elements. The
fibrils occupy a large fraction of the observed field of view, even
in the quiet regions, and clearly outline atmospheric volumes with
different dynamical properties, strongly dependent on the local magnetic
topology. This highlights how 1D models stratified along the vertical
direction can provide only a very limited representation of the actual
chromospheric physics.
Conclusions: Imaging spectroscopy in the
Ca II 854.2 nm line currently represents one of the best observational
tools for investigating the highly structured and highly dynamical
chromospheric environment. A high-performance instrument such as IBIS
is crucial in achieving the necessary spectral purity and stability,
spatial resolution, and temporal cadence. Two movies are only
available in electronic form at http://www.aanda.org
Title: Comparison of spatially and spectrally resolved solar data
with numerical simulations
Authors: Cauzzi, G.; Asensio Ramos, A.; Reardon, K. P.; Janssen, K.
Bibcode: 2007IAUS..239..138C
Altcode:
No abstract at ADS
Title: Reversed granulation in mid-photosphere of the Sun
Authors: Janssen, Katja; Cauzzi, Gianna
Bibcode: 2007IAUS..239..163J
Altcode:
No abstract at ADS
Title: Acoustic Shocks in the Quiet Solar Chromosphere
Authors: Cauzzi, G.; Reardon, K. P.; Vecchio, A.; Janssen, K.;
Rimmele, T.
Bibcode: 2007ASPC..368..127C
Altcode:
We exploit the two-dimensional spectroscopic capabilities of the
Interferometric BIdimensional Spectrometer (IBIS) to study the
chromospheric Ca II 854.2 nm line and its temporal evolution in a quiet
region at the center of the solar disk. The Ca II 854.2 profiles in the
internetwork portion of the field of view clearly indicate the presence
of hydrodynamic shocks, occurring at frequencies above the acoustic
cut-off. The location and strength of such shocks perfectly map
the areas where large velocity power is found at frequencies of 5.5-8
mHz in a standard Fourier analysis. The shocks locations evidence a
sharp partition of the quiet area in regions of very distinct dynamical
behavior, highlighting the role of the local magnetic topology in
structuring the lower chromosphere. The portions of the field of view
where the photospheric field is very weak, and that are presumably
connected to distant magnetic structures (or open to the interplanetary
field), are the site of frequent shock occurrence. On the contrary, in
regions neighboring the magnetic network and harboring a more horizontal
configuration of the chromospheric magnetic field, shocks are heavily
suppressed, even if the photospheric field is essentially absent in
these areas as well. These latter regions, with much reduced velocity
power at frequencies of 5.5-8 mHz \citep[the ``magnetic shadows'' first
described in][]{gc-judge_01}, are spatially coincident with fibrilar
structures visible in the Ca II 854.2 line core intensity maps. We
finally argue that areas within and immediately surrounding the magnetic
network also display evidence of chromospheric shocks, but occurring at
periodicities of 4-6 minutes. Such slow shocks are stronger than those
occurring in field-free areas, as evidenced by the strong emission
in the inner blue-wing of the line. This is in agreement with recent
results claiming that magneto-acoustic shocks can develop in inclined
magnetic structures, acting as `portals' through which the powerful
low-frequency photospheric oscillations can leak into the chromosphere.
Title: Solar atmospheric oscillations and the chromospheric magnetic
topology
Authors: Vecchio, A.; Cauzzi, G.; Reardon, K. P.; Janssen, K.;
Rimmele, T.
Bibcode: 2007A&A...461L...1V
Altcode: 2006astro.ph.11206V
Aims:We investigate the oscillatory properties of the quiet solar
chromosphere in relation to the underlying photosphere, with particular
regard to the effects of the magnetic topology.
Methods: For the
first time we perform a Fourier analysis on a sequence of line-of-sight
velocities measured simultaneously in a photospheric (Fe I 709.0 nm)
and a chromospheric line (Ca II 854.2 nm). The velocities were obtained
from full spectroscopic data acquired at high spatial resolution with
the Interferometric BIdimensional Spectrometer (IBIS). The field of
view encompasses a full supergranular cell, allowing us to discriminate
between areas with different magnetic characteristics.
Results: We
show that waves with frequencies above the acoustic cut-off propagate
from the photosphere to upper layers only in restricted areas of
the quiet Sun. A large fraction of the quiet chromosphere is in fact
occupied by “magnetic shadows”, surrounding network regions, that
we identify as originating from fibril-like structures observed in
the core intensity of the Ca II line. We show that a large fraction
of the chromospheric acoustic power at frequencies below the acoustic
cut-off, residing in the proximity of the magnetic network elements,
directly propagates from the underlying photosphere. This supports
recent results arguing that network magnetic elements can channel
low-frequency photospheric oscillations into the chromosphere, thus
providing a way to input mechanical energy in the upper layers.
Title: Reversed granulation in Fe I 7090.4Å
Authors: Janssen, K.; Cauzzi, G.
Bibcode: 2007msfa.conf..135J
Altcode:
The reversal of the photospheric continuum intensity pattern is
predicted by numerical simulations and has been observed in the wings of
chromospheric lines. Here we present reversed granulation extracted from
the photospheric Fe I 7090.4 Å line core intensities, after taking into
account the velocity effects, in high spatial, spectral and temporal
resolution. We study correlations with the underlying continuum in terms
of smoothing, time delays and the temporal evolution. The latter appears
to be superimposed with an oscillatory signal, that might suggest the
presence of gravity waves in the observed mid-photospheric layers.
Title: IBIS: Reversed Granulation in the Quiet Photosphere
Authors: Janssen, K.; Cauzzi, G.
Bibcode: 2006ASPC..354...49J
Altcode:
The phenomenon of ``reversed granulation'', i.e. the partial reversal
of the intensity pattern occurring in the low photosphere, is predicted
by numerical simulations and mostly observed in the extended wings
of chromospheric lines. In this contribution we present high spatial
resolution 2D maps of the reversed granulation, obtained from line
core images of the photospheric Fe I 7090.4 Å line, as well as the
temporal evolution of their correlation with continuum maps, that
suggests the presence of gravity waves in the mid-photosphere.
Title: High-resolution IBIS Observations and Comparison with 3D
Simulations
Authors: Cauzzi, G.; Asensio Ramos, A.; Reardon, K.; Janssen, K.
Bibcode: 2006ASPC..354...26C
Altcode:
We present first comparisons between high resolution observations of
the quiet photosphere, obtained with the Interferometric BIdimensional
Spectrometer (IBIS) in the non-magnetic Fe I 7090.4 Å spectral
line, and the synthetic spectrum calculated for a 3D snapshot of a
radiation-hydrodynamical simulation of the solar atmosphere. Together
with morphological comparisons between the synthetic images and the
observed ones at different wavelengths, we have carried out comparisons
between several observables. The simulations reproduce quite well
many of the observational properties of the high resolution IBIS data,
apart from the velocity distribution, that contains values quite larger
than observed.
Title: Dynamics of the solar photosphere with IBIS. I. Reversed
intensity structure in the mid-photosphere
Authors: Janssen, K.; Cauzzi, G.
Bibcode: 2006A&A...450..365J
Altcode:
Context: .We investigate the quiet solar photosphere with the new
Interferometric BI-dimensional Spectrometer (IBIS), recently installed
at the Dunn Solar Telescope of the National Solar Observatory,
Sacramento Peak, NM.
Aims: . We study the occurrence of reverse
granulation in the mid-photosphere, and its properties.
Methods:
. IBIS, a double Fabry-Perot system with a narrow passband of 20 mÅ
at 6000 Å was used to acquire a one hour sequence of 2D scans in
the photospheric Fe I 7090.4 Å and Fe II 7224.5 Å lines, and in the
chromospheric Ca II 8542 Å line. Photospheric velocities are measured
for statistical study. To visualize the reversed intensity structure,
the influence of velocity on the steep photospheric profiles is taken
into account. The correlation between mid-photospheric intensities and
continuum is then studied, considering the effects of spatial smoothing
and time delay. The temporal evolution of the cross-correlation
coefficients is analyzed.
Results: . The distribution of
photospheric velocities is consistent with values in the literature,
thus confirming the reliability of the instrument for this kind of
study. "Reversed granulation" is clearly visible in the Fe I 7090.4 Å
line center, formed at about 200 km. It provides a weak anti-correlation
with the continuum, as expected from numerical simulations. Images
acquired in the far wings of the Ca II line display the same pattern
with a slightly higher correlation. In both cases a spatial smoothing
larger than 0.5'' decreases the level of anti-correlation, while a
time delay of about 2 min increases it. Together, these facts suggest
that the phenomenon is mainly due to a reversal of temperature
fluctuations between granules and intergranules, occurring in the
mid-photosphere. The temporal evolution of the anti-correlation between
the Fe I line center and the continuum reveals a clear oscillatory
signal that we consider as highly suggestive of the presence of gravity
waves developing from the mid-photosphere outwards.
Title: High-resolution IBIS Observations and Comparison with 3D
Simulations .
Authors: Asensio Ramos, A.; Janssen, K.; Cauzzi, G.; Reardon, K.
Bibcode: 2006MSAIS...9...59A
Altcode:
High resolution observations of a very quiet region of the solar
surface have been obtained with IBIS (Interferometric BIdimensional
Spectrometer) in the non-magnetic Fe I 7090.4 Å spectral line. We
present a first comparison between the observed, spatially resolved,
spectral data and the simulated spectra in a 3D snapshot of a
radiation-hydrodynamical simulation of the solar atmosphere. Preliminary
results indicate that the simulations reproduce quite well many of
the observational properties of the high resolution IBIS data, even
though the simulations present a velocity distribution that contains
values quite larger than the observed ones.
Title: Quiet Solar Photosphere: Comparisons of High Resolution
Observations with 3-D Simulations
Authors: Cauzzi, G.; Asensio Ramos, A.; Reardon, K.; Janssen, K.
Bibcode: 2005ESASP.600E..12C
Altcode: 2005dysu.confE..12C; 2005ESPM...11...12C
No abstract at ADS
Title: IBIS Observations of Quiet Sun Photosphere - Velocity Structure
from Fe I 7090.4 Å
Authors: Janßen, Katja; Cauzzi, Gianna; Falchi, Ambretta; Cavallini,
Fabio; Reardon, Kevin
Bibcode: 2004IAUS..223..631J
Altcode: 2005IAUS..223..631J
In our contribution we introduce the new Interferometric BIdimensional
Spectrometer (IBIS) and present the first results on bisector velocities
of two dimensional spectral scans in FeI 7090.4 Å comparing granules
and intergranular regions.
Title: On the fractal dimension of small-scale magnetic structures
in the Sun
Authors: Janßen, K.; Vögler, A.; Kneer, F.
Bibcode: 2003A&A...409.1127J
Altcode:
We compare, by means of fractal analyses, the shapes of observed
small-scale magnetic structures on the Sun with those of magnetic
features resulting from numerical simulations of magnetoconvection. The
observations were obtained with the ``Göttingen'' Fabry-Perot
spectrometer at the Vacuum Tower Telescope at the Observatorio del Teide
on Tenerife. Magnetograms with 0\farcs4-0\farcs5 spatial resolution were
obtained from two-dimensional Stokes V polarimetry in the Fe I 6302.5 Å
line and by image reconstruction with speckle methods. The simulations
of magnetoconvection was performed with the MURAM code. It solves the
time-dependent MHD equations for a compressible, partly ionized plasma
including radiative transfer in LTE. To determine the fractal dimensions
the perimeter-area relation is used. We discuss the influence of seeing
and noise in the fractal dimension D of the observed magnetograms. A
dependence of D on the distance from disk center could not be found. The
observations give D=1.21+/-0.05 for a pixel size corresponding to
0\farcs105, while for the numerical simulations D=1.38+/-0.07 for a
pixel size of 20.83 km. If we use a yardstick adapted to the spatial
resolution the observations give the dimension D=1.41+/-0.05 in close
agreement with the simulations. This agreement is remarkable since
the pixel sizes and spatial resolutions of the simulations and of the
observations differ by a factor of 15. The finding supports the view
of self-similarity of solar magnetic structures over a large range of
scales. In addition, it demonstrates the realism of the simulations
and suggests that all important physical processes are included. We
discuss our results in comparison with other investigations.
Title: Structure and dynamics of small scale magnetic fields in
the solar atmosphere Results of high resolution polarimetry and
image reconstruction
Authors: Janssen, K.
Bibcode: 2003PhDT.........2J
Altcode:
Two-dimensional spectrograms were obtained at the Vacuum Tower
Telescope, Tenerife, in order to study the structure of small scale
magnetic fields on the Sun. The speckle reconstruction method that is
used for data processing gives high resolution images and wavelength
scans in left and right circular polarized light, from which magnetic
field maps are calculated using the center of gravity method. The
geometric similarity of magnetic structures is studied via the area-
perimeter-relation, from which the Hausdorff-dimension of the rim
of a structure is determined. The investigation shows that the
actual value of the fractal dimension depends on the threshold that is
used to determine the borders of the magnetic areas. Higher treshold
values lead to smaller fractal dimensions. This can be explained by
the concentration of strong magnetic fields while weak fields spread
out in more complex structures. With a treshold of 80 Gauss a fractal
dimension of D=1,40(5) is obtained. Furthermore, the dimension obtained
by observed data is compared to the fractal dimension gained from MHD
simulations. It is found that if the measurement scales are adjusted
correctly the dimensions for both datasets match quite well. In a
second part the dynamics of the mass motions were analysed and a coarse
estimate of the energy conveyed by these movements to the magnetic
field is given. The energy flux is strong enough to participate in
the heating of the solar chromosphere and corona over active regions.
Title: Hausdorff-Dimension of Magnetic Structures
Authors: Janssen, Katja; Vögler, Alexander; Kneer, Franz
Bibcode: 2003ANS...324...30J
Altcode: 2003ANS...324..D06J
No abstract at ADS
Title: Speckle spectro-polarimetry of magnetic structures
Authors: Janssen, K.; Kneer, F.
Bibcode: 2003AN....324..328J
Altcode:
Two-dimensional spectrograms were obtained with the Vacuum Tower
Telescope, Tenerife, in order to study small-scale structures and
faculae on the Sun. Using the speckle reconstruction method, we obtain
high-resolution images and wavelength scans. Magnetic fields can be
studied from Stokes V profiles, and velocity maps are gained by the
Doppler shift of the center of gravity of Stokes I. Here some results
about small-scale structures and their magnetic fields are shown.
Title: Speckle spectro-polarimetry of magnetic structures
Authors: Janssen, K.; Kneer, F.
Bibcode: 2001AN....322..383J
Altcode:
High spatial resolution images with spectral and polarimetric
information were obtained with the Vacuum Tower Telescope (VTT),
Tenerife, in order to study dynamic small scale structures on
the Sun. With the Göttingen Fabry-Perot interferometer (FPI)
we observed faculae at different ( cos , theta ) positions on the
Sun. Simultaneously with these narrow-band images, 150 broad-band
images were taken from which high resolution images are calculated
with the spectral ratio and the speckle masking methods. With the aid
of the transfer functions, gained with the speckle recontruction,
the narrow-band FPI images can be reconstructed as well. Here our
first results are presented.
Title: Speckle Spectro-Polarimetry of Small-Scale Magnetic Structures
Authors: Janßen, K.; Koschinsky, M.; Kneer, F.
Bibcode: 2001ASPC..236..407J
Altcode: 2001aspt.conf..407J
No abstract at ADS
Title: Speckle Spectro-Polarimetry of Magnetic Structures
Authors: Janßen, K.; Kneer, F.
Bibcode: 2001AGM....18.P222J
Altcode:
High spatial resolution images with spectral and polarimetric
information were obtained with the Vacuum Tower Telescope (VTT),
Tenerife, in order to study dynamic small scale structures on the
Sun. With the Göttingen Fabry-Perot interferometers (FPIs) we observed
faculae at different cos θ positions on the Sun. Simultaneously with
these narrow-band images, 150 broad-band images were taken from which
high resolution images can be calculated with the Spectral Ratio
and the Speckle Masking methods. Once these high resolution images
are completed, the narrow-band FPI images can be reconstructed as
well. Here we present our first results.
Title: Die Rotation der Sonne
Authors: Janßen, Katja; Kneer, Franz
Bibcode: 2000A&R....58...40J
Altcode:
Sonnenspektren hoher spektraler Auflösung sind vielfach begehrt. Sie
werden im Unterricht, in Arbeitsgemeinschaften und in Vorlesungen
verwendet. Anhand solcher Spektren lässt sich vieles aus dem wichtigen
Gebiet der astronomischen Spektroskopie erklären und lernen.
Title: Sonnenspektren für den Unterricht.
Authors: Janßen, K.; Kneer, F.
Bibcode: 1999S&W....38..454J
Altcode:
No abstract at ADS