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Fast core rotation in red-giant stars revealed by gravity-dominated mixed modes
Paul G. Beck, Josefina Montalban, Thomas Kallinger +21
When the core hydrogen is exhausted during stellar evolution, the central region of a star contracts and the outer envelope expands and cools, giving rise to a red giant, in which…
Modelling a high-mass red giant observed by CoRoT
F. Baudin, C. Barban, M. J. Goupil +15
The G6 giant HR\,2582 (HD\,50890) was observed by CoRoT for approximately 55 days. Mode frequencies are extracted from the observed Fourier spectrum of the light curve. Numerical s…
Characterization of the power excess of solar-like oscillations in red giants with Kepler
B. Mosser, Y. Elsworth, S. Hekker +15
We aim to describe the oscillation power excess observed in Kepler red giants, and to investigate empirical scaling relations governing these parameters. From these scalings relati…
Investigating the properties of granulation in the red giants observed by Kepler
S. Mathur, S. Hekker, R. Trampedach +18
More than 1000 red giants have been observed by NASA/Kepler mission during a nearly continuous period of ~ 13 months. The resulting high-frequency resolution (< 0.03 muHz) allows u…
Aspects of observational red giant population seismology
Joris De Ridder
The space missions CoRoT and Kepler provide us with large samples of red giant stars wherein non-radial solar-like oscillations can be detected. This leads to the exciting opportun…
Testing Scaling Relations for Solar-Like Oscillations from the Main Sequence to Red Giants using Kepler Data
D. Huber, T. R. Bedding, D. Stello +29
We have analyzed solar-like oscillations in ~1700 stars observed by the Kepler Mission, spanning from the main-sequence to the red clump. Using evolutionary models, we test asteros…