511 citations · 3.7k across the 41 of their papers we have counts for
10 papers · 1 filter
MOST photometry of the enigmatic PMS pulsator HD 142666
K. Zwintz, T. Kallinger, D. B. Guenther +11
We present precise photometry of the pulsating Herbig Ae star HD 142666 obtained in two consecutive years with the MOST (Microvariability & Oscilations of STars) satellite. Previou…
The nature of p-modes and granulation in HD 49933 observed by CoRoT
T. Kallinger, M. Gruberbauer, D. B. Guenther +2
Context: Recent observations of HD49933 by the space-photometric mission CoRoT provide photometric evidence of solar type oscillations in a star other than our Sun. The first publi…
Oscillating red giants in the CoRoT exo-field: Asteroseismic mass and radius determination
T. Kallinger, W. W. Weiss, C. Barban +10
Context. Observations and analysis of solar-type oscillations in red-giant stars is an emerging aspect of asteroseismic analysis with a number of open questions yet to be explored.…
On the detection of Lorentzian profiles in a power spectrum: A Bayesian approach using ignorance priors
M. Gruberbauer, T. Kallinger, W. W. Weiss +1
Aims. Deriving accurate frequencies, amplitudes, and mode lifetimes from stochastically driven pulsation is challenging, more so, if one demands that realistic error estimates be g…
MOST photometry of the roAp star 10 Aql
D. Huber, H. Saio, M. Gruberbauer +12
Context: We present 31.2 days of nearly continuous MOST photometry of the roAp star 10Aql. Aims:The goal was to provide an unambiguous frequency identification for this little stud…
MOST photometry and modeling of the rapidly oscillating (roAp) star gamma Equ
M. Gruberbauer, H. Saio, D. Huber +9
Aims. Despite photometry and spectroscopy of its oscillations obtained over the past 25 years, the pulsation frequency spectrum of the rapidly oscillating Ap (roAp) star gamma Equ…
Why are some A stars magnetic, while most are not?
G. A. Wade, J. Silvester, K. Bale +21
A small fraction of intermediate-mass main sequence (A and B type) stars have strong, organised magnetic fields. The large majority of such stars, however, show no evidence for mag…
Weak magnetic fields in Ap/Bp stars: Evidence for a dipole field lower limit and a tentative interpretation of the magnetic dichotomy
M. Auriere, G. A. Wade, J. Silvester +22
We have investigated a sample of 28 well-known spectroscopically-identified magnetic Ap/Bp stars, with weak, poorly-determined or previously undetected magnetic fields, with the ai…
Cinderella - Comparison of INDEpendent RELative Least-squares Amplitudes
P. Reegen, M. Gruberbauer, L. Schneider +1
The identification of increasingly smaller signal from objects observed with a non-perfect instrument in a noisy environment poses a challenge for a statistically clean data analys…
MOST photometry of the RRd Lyrae variable AQ Leo: Two radial modes, 32 combination frequencies, and beyond
Michael Gruberbauer, Katrien Kohlenberg, Jason F. Rowe +12
Highly precise and nearly uninterrupted optical photometry of the RR Lyrae star AQ Leo was obtained with the MOST (Microvariability & Oscillations of STars) satellite over 34.4 day…