Author name code: molowny
ADS astronomy entries on 2022-09-14
author:"Molowny, Roberto" OR =author:"Molowny-Horas, Roberto"
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Title: Observations of Doppler oscillations in a solar prominence
Authors: Molowny-Horas, Roberto; Oliver, Ramón; Ballester, José Luis;
Baudin, Frédéric
Bibcode: 1997SoPh..172..181M
Altcode: 1997ESPM....8..181M
We report on the observation of Doppler oscillations in a quiescent
limb prominence. Fourier analysis of the data reveals an oscillatory
period of 7.5 min, whose phase varies linearly at 16 consecutive
points (7280 km) along the slit. This yields an upper limit for the
perturbation wavelength of ≈ 20000 km. Wavelet analysis confirms the
above period and indicates an oscillation lifetime of 12 min. Moreover,
the disturbance appears to travel at a speed greater than 4.4 km
s-1. A comparison of these results with the predictions of
some theoretical models is made.
Title: Proper-Motion Measurements of Umbral and Penumbral Structure
Authors: Molowny-Horas, Roberto
Bibcode: 1994SoPh..154...29M
Altcode:
Horizontal proper motions of penumbral structure and umbral dots
have been measured from a 17-min-long time series of sunspot images
by numerical techniques. In the penumbra, inflows are seen to occur
predominantly in the inner region, with an average velocity of 290 m
s−1. Penumbral outflows take place mostly in the outer
part, where they reach velocities as high as 1.5 km s−1,
with an average velocity of 500 m s−1. In the umbra,
proper motions of 28 bright dots have been measured with an accuracy
better than 50 m s−1. The mean velocity of the umbral
dots is 210 m s−1. Most of the umbral dots display the
well-known inward motion away from the peripheral umbra.
Title: Active Region Evolution Through Coordinated Observations
Authors: Mein, N.; Mein, P.; Schmieder, B.; Engvold, O.; Molowny,
R.; Ai, G. X.
Bibcode: 1993ASPC...46...63M
Altcode: 1993mvfs.conf...63M; 1993IAUCo.141...63M
No abstract at ADS