Author name code: kiepenheuer
ADS astronomy entries on 2022-09-14
author:"Kiepenheuer, Karl-Otto"
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Title: 1950, Cosmic Rays as the Source of General Galactic Radio
Emission
Authors: Kiepenheuer, K. O.
Bibcode: 1982cra..book...90K
Altcode:
No abstract at ADS
Title: Vergleichende Turbulenz- und Seeingmessungen am Pic-du-Midi
Observatorium (2855 m)
Authors: Kiepenheuer, K. O.
Bibcode: 1975MitAG..36..137K
Altcode:
No abstract at ADS
Title: Solar space research in the Federal Republic of Germany
Authors: Kiepenheuer, K. O.
Bibcode: 1975cesra...5...87K
Altcode:
No abstract at ADS
Title: Solar space research in the Federal Republic of Germany.
Authors: Kiepenheuer, K. O.
Bibcode: 1975MmArc.105...87K
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No abstract at ADS
Title: Fraunhofer-Institut mit den Observatorien Schauinsland und
Anacapri. Report 1974.
Authors: Kiepenheuer, K. O.
Bibcode: 1975MitAG..37...58K
Altcode:
No abstract at ADS
Title: European Site Survey for a Solar Observatory
Authors: Kiepenheuer, K. O.
Bibcode: 1974S&T....48...84K
Altcode:
No abstract at ADS
Title: Book reviews
Authors: Kleczek, J.; Priester, W.; Lauwerier, H. A.; Noerdlinger,
Peter D.; van Kampen, N. G.; Kiepenheuer, K. O.; de Graaff, W.
Bibcode: 1974SSRv...15..541K
Altcode:
No abstract at ADS
Title: Recent Developments in Improving Daytime Angular Resolution
from the Ground
Authors: Kiepenheuer, K. O.
Bibcode: 1974IAUS...56...27K
Altcode:
No abstract at ADS
Title: Entwicklung von Aktivitätsgebieten auf der Sonne.
Authors: Kiepenheuer, K. O.
Bibcode: 1974Umsch..74..190K
Altcode:
No abstract at ADS
Title: Fraunhofer-Institut mit den Observatorien Schauinsland und
Anacapri. Report 1973.
Authors: Kiepenheuer, K. O.
Bibcode: 1974MitAG..35...60K
Altcode:
No abstract at ADS
Title: Über den Fortgang des JOSO-Projektes
Authors: Kiepenheuer, K. O.
Bibcode: 1973MitAG..34..101K
Altcode:
No abstract at ADS
Title: Joint Organization for Solar Observations (JOSO)
Authors: Kiepenheuer, K. O.
Bibcode: 1973sari.conf..165K
Altcode:
No abstract at ADS
Title: Fortgang des Projektes JOSO (Joint Organization for Solar
Observation)
Authors: Kiepenheuer, K. O.
Bibcode: 1972MitAG..31..147K
Altcode:
No abstract at ADS
Title: High angular resolution solar observation from balloon borne
instruments.
Authors: Kiepenheuer, K. O.
Bibcode: 1972spre.conf.1701K
Altcode: 1972spre....2.1701K
No abstract at ADS
Title: Solar Activity: The Role and Necessity of Optical Space
Observations in Solar Physics
Authors: Kiepenheuer, K. O.
Bibcode: 1971RSPTA.270..109K
Altcode:
It is shown that, for a quantitative investigation of the physical
processes producing the chromospheric structures, an angular resolution
of 0.2' ' in the extreme u.v. as well as in the magnetic
field measurement is indispensable. The same requirements also apply
to the study of the primary flare process. The realization of such
complex optical space projects will need the integration of ground,
balloon and space work.
Title: Fraunhofer Institut mit den Observatorien Schauinsland und
Anacapri. Report 1970.
Authors: Kiepenheuer, K. O.
Bibcode: 1971MitAG..29...51K
Altcode:
No abstract at ADS
Title: Joint Organization for Solar Observations. Annual report 1970.
Authors: de Jager, C.; Kiepenheuer, K. O.; Michard, R.; Maltby, P.;
Rösch, J.; Brandt, P. N.
Bibcode: 1971joso.book.....D
Altcode:
No abstract at ADS
Title: Fraunhofer Institut mit den Observatorien Schauinsland und
Anacapri. Report 1969.
Authors: Kiepenheuer, K. O.
Bibcode: 1970MitAG..28...48K
Altcode:
No abstract at ADS
Title: Ein neuer Fernrohrtyp für die Sonnenforschung
Authors: Kiepenheuer, K. O.
Bibcode: 1969NW.....56..347K
Altcode:
No abstract at ADS
Title: Fraunhofer Institut mit den Observatorien Schauinsland und
Anacapri. Report 1968.
Authors: Kiepenheuer, K. O.
Bibcode: 1969MitAG..26...42K
Altcode:
No abstract at ADS
Title: Projekt "JOSO" (Joint Solar Observatory) - Ein kooperatives
internationales Sonnen-Observatorium
Authors: Kiepenheuer, K. O.
Bibcode: 1969MitAG..27..160K
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No abstract at ADS
Title: Preface and Introduction
Authors: Kiepenheuer, K. O.
Bibcode: 1968IAUS...35....3K
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No abstract at ADS
Title: Structure and development of solar active regions. Symposium
no. 35 held in Budapest, Hungary, 4-8 September 1967.
Authors: Kiepenheuer, Karl Otto
Bibcode: 1968IAUS...35.....K
Altcode: 1968QB524.S7.......
No abstract at ADS
Title: Observational aspects of flare and surge theories
Authors: Kiepenheuer, K. O.
Bibcode: 1968mmsf.conf..123K
Altcode:
No abstract at ADS
Title: The Need of Ground-Correlated High-Resolution Space
Observations in the Visible
Authors: Kiepenheuer, K. O.
Bibcode: 1968HiA.....1..527K
Altcode:
No abstract at ADS
Title: Buchbersprechungen über: Sonnenforschung. (Ref. H. H. VOIGT)
Authors: Kiepenheuer, K. O.
Bibcode: 1967ZA.....66..431K
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No abstract at ADS
Title: Fraunhofer Institut, Freiburg
Authors: Kiepenheuer, K. O.
Bibcode: 1967SoPh....1..162K
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No abstract at ADS
Title: Morphology of an Active Region on the Sun
Authors: Kiepenheuer, K. O.
Bibcode: 1967sp...conf..383K
Altcode:
No abstract at ADS
Title: The Domeless Solar Refractor of Capri Observatory
Authors: Kiepenheuer, K. O.
Bibcode: 1966S&T....31..256K
Altcode:
No abstract at ADS
Title: About the Flare Problem
Authors: Kiepenheuer, K. O.
Bibcode: 1965ASSL....1..240K
Altcode: 1965sosp.conf..240K
No abstract at ADS
Title: An Assembly of Flare Observations as Related to Theory
Authors: Kiepenheuer, K. O.
Bibcode: 1964NASSP..50..323K
Altcode: 1964psf..conf..323K
No abstract at ADS
Title: On the sunspot phenomenon: general introduction
Authors: Kiepenheuer, K. O.
Bibcode: 1964susp.conf...26K
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No abstract at ADS
Title: Solar Site Testing
Authors: Kiepenheuer, K. O.
Bibcode: 1964IAUS...19..193K
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No abstract at ADS
Title: Flare Associated Phenomena; Generation and Storage of High
Energy Particles in the Corona. Discussion Leader:
Authors: Kiepenheuer, K. O.
Bibcode: 1963IAUS...16..230K
Altcode:
No abstract at ADS
Title: Experiences and experiments with solar seeing
Authors: Kiepenheuer, K. O.
Bibcode: 1962sose.conf...49K
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No abstract at ADS
Title: Der Magnetograph des Fraunhofer Instituts. Mit 5
Textabbildungen
Authors: Deubner, F. L.; Kiepenheuer, K. O.; Liedler, R.
Bibcode: 1961ZA.....52..118D
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No abstract at ADS
Title: The optical phenomena forming a solar center of activity
Authors: Kiepenheuer, K. O.
Bibcode: 1960raso.conf...39K
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No abstract at ADS
Title: Der Freiburger Radiospektrograph (48-165 MHz), Mit 6
Textabbildungen
Authors: Kiepenheuer, K. O.; Rabben, H. H.
Bibcode: 1960ZA.....49...61K
Altcode:
No abstract at ADS
Title: Über die Struktur der gestörten Sonnenatmosphäre. Mit
10 Textabbildungen
Authors: Kiepenheuer, K. O.
Bibcode: 1960ZA.....49...73K
Altcode:
No abstract at ADS
Title: Über die Verdichtung der Koronamaterie
Authors: Kiepenheuer, K. O.
Bibcode: 1959ZA.....48..290K
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No abstract at ADS
Title: Magnetic fields in the solar atmosphere
Authors: Kiepenheuer, K. O.
Bibcode: 1959sai.....1...97K
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No abstract at ADS
Title: The sun
Authors: Kiepenheuer, Karl Otto
Bibcode: 1959tsun.book.....K
Altcode: 1959QB521.K613.....
No abstract at ADS
Title: Über die Beobachtung eines solaren Auswurfs am Sonnenrande
im Integrallicht. Mit 1 Textabbildung
Authors: Kiepenheuer, K. O.; Kuenzer, G.
Bibcode: 1958ZA.....44..138K
Altcode:
No abstract at ADS
Title: Zur lichtelektrischen Registrierung und Photometrie von
Fackeln und Eruptionen. Mit 6 Textabbildungen
Authors: Kiepenheuer, K. O.; Deubner, F. L.
Bibcode: 1958ZA.....45...17K
Altcode:
No abstract at ADS
Title: Buchbesprechungen über: Die Sonne. (Ref. C. de Jager)
Authors: Kiepenheuer, K. O.
Bibcode: 1958ZA.....45...82K
Altcode:
No abstract at ADS
Title: The Solar Component of Cosmic Radiation
Authors: Kiepenheuer, K. O.
Bibcode: 1958ICRC....4..540K
Altcode: 1958cora.conf..540K
No abstract at ADS
Title: Erfahrungen mit einem Lyotschen Hα-Filter, sowie
vorläufige Ergebnisse über die Struktur der Chromosphäre. Mit
10 Textabbildungen
Authors: Kiepenheuer, K. O.
Bibcode: 1957ZA.....42..209K
Altcode:
No abstract at ADS
Title: "Erfahrungen mit einem Lyotschen Hα-Filter sowie Vorläufige
Ergebnisse über die Struktur der Chromosphäre. Z. Astrophysik 42,
209 (1957)
Authors: Kiepenheuer, K. O.
Bibcode: 1957ZA.....43...84K
Altcode:
No abstract at ADS
Title: Ein Radioteleskop für λ 11. 5 cm (2600 MHz). Mit 9
Textabbildungen
Authors: Kiepenheuer, K. O.; Rabben, H. H.
Bibcode: 1957ZA.....42..120K
Altcode:
No abstract at ADS
Title: On the mechanism of solar outbursts
Authors: Kiepenheuer, K. O.
Bibcode: 1957IAUS....4..345K
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No abstract at ADS
Title: Die Sonne
Authors: Kiepenheuer, Karl Otto
Bibcode: 1957sonn.book.....K
Altcode: 1957QB521.K6.......
No abstract at ADS
Title: Some problems of the international solar survey
Authors: Kiepenheuer, K. O.
Bibcode: 1955VA......1..631K
Altcode:
The observation and measurement of various solar phenomena
are critically reviewed. The relative sunspot numbers are not
purely a solar measure but are strongly affected by the Earth's
heliocentric position. Reduction to standard conditions is shown to be
possible. The survey of faculae, flares, and prominences (filaments),
still unsatisfactory, will be greatly improved by the world-wide use
of the Lyot filter with automatic cameras and by the application
of photo-electric photometry. Also, the daily photometry of the
corona, at present mostly made visually, will gain in accuracy and
in observing days per year by the use of a photo-electric method as
proposed recently by Lyot. Solar magnetic fields in spots and outside
the spot-belts will be important components of future solar surveys,
suitable instruments already being available. The survey of the Sun's
radio emission is already fairly complete. The intensity of solar
radiation in the far ultra-violet as revealed daily by the measurable
ionospheric electron densities could be obtained on an absolute scale by
calibration through a few direct rocket measurements at heights above
100 km. The corpuscular radiation of the Sun is strongly disturbed in
the vicinity of the Earth. Terrestrial observations therefore give no
reliable solar measure. It seems as if better results can be obtained
by observing the effects of this radiation on comet tails and on the
brightness of the zodiacal light.
Title: Emission of Corpuscles from the Sun
Authors: Kiepenheuer, K. O.
Bibcode: 1954auph.conf..403K
Altcode:
No abstract at ADS
Title: Photoelectric Measurements of Solar Magnetic Fields.
Authors: Kiepenheuer, K. O.
Bibcode: 1953ApJ...117..447K
Altcode:
A photoelectric instrument is described for the detection of small
Zeeman effects, based on the measurement of the total polarization
in the wing of the Fe line X 525O.2t8. This instrument, when attached
to the grating spectrograph of the Mount Wilson 150-foot solar tower,
gave no indication of a general field of the sun (spring, 1951). The
upper limit set is about 1 gauss for the longitudinal field. Certain
patches are observed having a field of a few gauss but containing no
sunspots. These fields show a fine structure indicating the occurrence
of peak fields of more than 20 gauss, even outside the spot belts. The
results presented have a preliminary character.
Title: Solar Activity
Authors: Kiepenheuer, K. O.
Bibcode: 1953sun..book..322K
Altcode:
No abstract at ADS
Title: Über ein solares Maβ der Fleckentätigkeit. Mit 6
Textabbildungen
Authors: Becker, U.; Kiepenheuer, K. O.
Bibcode: 1953ZA.....33..132B
Altcode:
No abstract at ADS
Title: Emission of Corpuscles from the Sun
Authors: Kiepenheuer, K. O.
Bibcode: 1952JGR....57..113K
Altcode:
The arguments in favor of the existence of solar corpuscles are reviewed
and the geomagnetic action analyzed. The emission of the storm-producing
corpuscles is discussed in terms of the Milne-mechanism acting on Ca II
ions, based on modern data on flares and on the chemical composition
of the solar atmosphere. The long-lived streams of solar corpuscles
producing moderate disturbances of the earth's magnetic fields are
identified with invisible extensions of the coronal streamers. They
can be quantitatively understood as an evaporation of coronal protons
into space. The unobservable M-regions are probably associated with
the coronal streamers.
Title: The Nature of Solar Prominences
Authors: Kiepenheuer, K. O.
Bibcode: 1951PASP...63..161K
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No abstract at ADS
Title: Cosmic Rays as the Source of General Galactic Radio Emission
Authors: Kiepenheuer, K. O.
Bibcode: 1950PhRv...79..738K
Altcode:
No abstract at ADS
Title: Cosmic rays and radio astronomy.
Authors: Kiepenheuer, K. O.
Bibcode: 1950AJ.....55S.172K
Altcode:
It will be shown that the cosmic radiation in our galaxy is of
sufficient power to explain the general galactic noise in the
meter-wave band. It is now known that this galactic radio emission is
not a thermal free-free radiation of interstellar gas, as was first
believed, since the electronic temperature would then have to be of
the order of 100,0000. All spectroscopic evidence leads to values
around 10,0000. Stars could be considered as sources only under
very artificial assumptions. The observed intensities, which have
to come from the outermost layers of stellar atmospheres, could not
be black-body radiation and might be understood in terms of coherent
plasma oscillations of extended regions. The formation and maintenance
of these oscillations are hardly possible in a stellar atmosphere. We
assume that, at least inside interstellar clouds, an equilibrium is set
up between turbulent and magnetic field energy. Therefore fields of the
order of 10-6 gauss are expected. An energetic electron with energy
W m0c2, which circulates in this field must radiate electromagnetic
energy. But there is an important difference between a slow electron,
which will emit the Larmor-frequency, and an electron moving with
nearly the speed of light. The latter will radiate energy only in
a very narrow cone in direction of its motion. An observer at rest
will therefore receive radiation only when within this cone. This will
occur during a very short period, which corresponds to a frequency much
higher than the classical Larmor-frequency i The mean ergiebigkeit of
electromagnetic radiation of frequency v which will be produced by the
action of many cosmic ray electrons of density n will then be E(v)d =
uedP for o Y e, where R is the radius of an electron's circular orbit
and v = ~vo (${2 )3. This intensity increases slowly with frequency
until = e and then decreases rapidly. In order to estimate fle, we
note that there must be a certain number of them in cosmic radiation
as a direct consequence of ionization losses of protons and heavier
primaries in interstellar space and of electron pair production by
encounters of protons and thermal starlight photons. Interaction
with these photons also eliminates the high-speed electrons. The non-
observation of cosmic ray electrons on the outer boundary of the earth's
atmosphere therefore does not exclude the existence of electrons in
interstellar space far away from the sun. However, from the east-west
asymmetry of cosmic rays it has been concluded that less than 10 per
cent of incoming charges could be negative. We assume, therefore, that
there is about one electron per 100 cosmic ray particles. Electrons
with energies very much higher than io6eV are hardly to be expected,
because of their strong radiation losses in accordance with the formula
given above. We therefore assume W= io5eV. The total emission of such
an electron gas in a column of length D at v = 100 Mc will be then of
the same order as measured by Reber, Hey, Parson, Philips and others,
if D 1000 light years. It is reasonable that this figure is smaller than
the diameter of the galaxy, since the well-established cloudy structure
of interstellar material, and therefore of the associated magnetic
fields, would indicate that the emission of galactic radio noise takes
place in a relatively small fraction of the galaxy. The general radio
emission shows some relation to the general visible structure of the
galaxy, but the correlation with the stars or other galactic objects
is rather poor. This conclusion favors Fermi's hypothesis that cosmic
rays and galactic matter have more or less the same distribution,
cosmic rays being created in space and not by the stars. A relation
between radio emission and cosmic rays has previously been suggested by
Alfv6n for the special case of so-called radio stars, nvisible discrete
centers of strong radio emission. This interesting suggestion, which
has stimulated the above analysis and which seems to be in need of
re-examination, would favor the opposite view represented by Teller,
that discrete galactic objects are the sources of cosmic radiation or
at least of a part of it. Yerkes Observatory, Williams Bay, Wis.
Title: Synoptische Karten der Sonne 1946, Juni 19 - 1947, Juli 1. Mit
14 Textabbildungen
Authors: Behr, Alfred; Kiepenheuer, Karl-Otto
Bibcode: 1948ZA.....25..179B
Altcode:
No abstract at ADS
Title: A Slow Corpuscular Radiation from the Sun.
Authors: Kiepenheuer, K. O.
Bibcode: 1947ApJ...105..408K
Altcode:
It is shown that the solar filaments are sources of a slow corpuscular
radiation; this radiation travels to the earth in 3-4 days after the
filaments have passed the central meridian (Figs. 7 and 9). The mean
velocity is therefore about 500 km/sec. Filaments in higher heliographic
latitudes, up to 300, contribute to this radiation, especially around
the sunspot minimum. Filaments near sunspots have no influence on the
geomagnetic field. When the relative sunspot num- ber, R, exceeds a
critical value, the correlation between filaments and the intensity
of the corpuscular radiation reaching the earth practically disappears
(Figs. 3-6, 7, and 8). Coronal patches, bright in X 5303, have an effect
similar to that of sunspots but even more pronounced; this is shown by
observa- tions covering three years (Figs. 10 and 12). Assuming that
the filaments are supported by radiation pressure of La, we estimate
the acceleration of an H-atom which has escaped by diffusion from
the filament and is now exposed to the full La flux. In calculating
the acceleration, the La profile and the gradually increasing Doppler
shift are allowed for. The final velocity will depend on the lifetime
of the atom, which is determined by the ionization probabil- ity and
therefore by the intensity of the Lyman continuum. The latter may
be estimated from the elec- tron concentration in the terrestrial
ionosphere. The resulting final velocity is about 500 km/sec,
in agreement with observation. The fact that sunspots destroy the
correlation between the received corpuscular radiation and the fila-
ments'is explained by assuming that the magnetic field of the sunspots
deflects the corpuscles. Simple cal- culations show that this assumption
is justified. The behavior of bright coronal patches, being similar to
that of the "magnetically effective areas" around sunspots, indicates
that these two types of regions are probably identical; this conclusion
is confirmed by Figure 13, which contains synoptic maps of the coronal
intensities (X 5303), the filaments, and the spots of different types
Title: Origin of Solar Radiation in the 1 6 Metre Radio Wave-lenght
Band
Authors: Kiepenheuer, K. O.
Bibcode: 1946Natur.158..340K
Altcode:
THE intensity of the solar radiation in the wave-length region of a
few metres sometimes deviates extraordinarily from that for a black
body at 6000°. The observed departures show a clear correlation with
sunspots and their heliographic positions, and become extremely high
during the appearance of chromospheric eruptions1. As can
be shown, even the intensity of the corona, which will radiate in this
spectral region nearly like a black body at 106 degrees,
falls short of the observed values.
Title: On the relations between ionosphere, sunspots and solar corona
Authors: Kiepenheuer, K. O.
Bibcode: 1946MNRAS.106..515K
Altcode:
No abstract at ADS
Title: Recherches de physique solaire. II: Sur les causes des
déviations par rapport à l'équilibre thermique dans les couches
extérieures du Soleil (Contribution à l'étude des facules et de
la couronne) III: Contribution à la théorie des protubérances et
remarque sur le champ magnétique du Soleil
Authors: Kiepenheuer, K. O.
Bibcode: 1946AnAp....9...42K
Altcode:
No abstract at ADS
Title: Recherches de Physique solaire. - I. Sur l'intensité absolue
et les lois du rayonnement ultraviolet qui produit l'ionosphère
(rayonnement solaire 600-900 Å)
Authors: Kiepenheuer, K. O.
Bibcode: 1945AnAp....8..210K
Altcode:
No abstract at ADS
Title: Über die Ausstrahlung der Sonne im fernen Ultraviolett
I. Theorie der chromosphärischen Eruptionen
Authors: Kiepenheuer, K. O.
Bibcode: 1941VeGoe...5...13K
Altcode:
No abstract at ADS
Title: Über die Ausstrahlung der Sonne im fernen
Ultraviolett. I. Theorie der chromosphärischen Eruptionen.
Authors: Kiepenheuer, K. O.
Bibcode: 1941ZA.....20..332K
Altcode:
No abstract at ADS
Title: Zur Dynamik der Sonnenprotuberanzen. (Veröffentlichung der
Universitäts-Sternwarte Göttingen, Nr. 58.) Mit 2 Abbildungen.
Authors: Kiepenheuer, K. O.
Bibcode: 1938ZA.....15...53K
Altcode:
No abstract at ADS
Title: Über die Sonnenstrahlung bei 2150 A. E.
Authors: Kiepenheuer, K. O.
Bibcode: 1938VeGoe...4..147K
Altcode:
No abstract at ADS
Title: Zur Dynamik der Sonnenprotuberanzen
Authors: Kiepenheuer, K. O.
Bibcode: 1937VeGoe...4..115K
Altcode:
No abstract at ADS
Title: Über die Sonnenstrahlung zwischen 2000 und 3000 A
Authors: Kiepenheuer, K. O.
Bibcode: 1937VeGoe...4..105K
Altcode:
No abstract at ADS
Title: Über die Sonnenstrahlung zwischen 2000 und 3000 Å
(Veröffentlichungen der Universitäts-Sternwarte Göttingen,
Nr. 57. ) Mit 3 Abbildungen.
Authors: Kiepenheuer, K. O.
Bibcode: 1937ZA.....14..348K
Altcode:
No abstract at ADS
Title: Zur Theorie der Sonnenkorona. Mit 3 Abbildungen.
Authors: Kiepenheuer, K. O.
Bibcode: 1935ZA.....10..260K
Altcode:
No abstract at ADS
Title: Bemerkungen zur Birkeland-Störmerschen Theorie des
Polarlichtes.
Authors: Kiepenheuer, K. O.
Bibcode: 1935ZA.....10..279K
Altcode:
No abstract at ADS