85 citations · 236 across the 6 of their papers we have counts for
6 papers
New BRITE-Constellation observations of the roAp star Alpha Circini
W. W. Weiss, H. -E. Fröhlich, T. Kallinger +11
Chemically peculiar (CP) stars with a measurable magnetic field comprise the group of mCP stars. The pulsating members define the subgroup of rapidly oscillating Ap (roAp) stars, o…
A Bayesian estimation of the helioseismic solar age
Alfio Bonanno, Hans-Erich Fröhlich
The helioseismic determination of the solar age has been a subject of several studies because it provides us with an independent estimation of the age of the solar system. We prese…
Magnetic activity, differential rotation and dynamo action in the pulsating F9IV star KIC 5955122
A. Bonanno, H. -E. Fröhlich, C. Karoff +3
We present photometric spot modeling of the nearly four-year long light-curve of the Kepler target KIC 5955122 in terms of persisting dark circular surface features. With a Bayesia…
A Bayesian approach to scaling relations for amplitudes of solar-like oscillations in Kepler stars
E. Corsaro, H. -E. Fröhlich, A. Bonanno +5
We investigate different amplitude scaling relations adopted for the asteroseismology of stars that show solar-like oscillations. Amplitudes are among the most challenging asterose…
Magnetic activity and differential rotation in the young Sun-like stars KIC 7985370 and KIC 7765135
H. -E. Fröhlich, A. Frasca, G. Catanzaro +5
We present a detailed study of the two Sun-like stars KIC 7985370 and KIC 7765135, aimed at determining their activity level, spot distribution, and differential rotation. Both sta…
Surface structure of the CoRoT CP2 target star HD 50773
T. Lüftinger, H. -E. Fröhlich, W. Weiss +15
We compare surface maps of the chemically peculiar star HD 50773 produced with a Bayesian technique and based on high quality CoRoT photometry with those derived from rotation phas…