Successful asteroseismology for a better characterisation of the exoplanet HAT-P-7b

M. Oshagh, A. Grigahcène, T. L. Campante, M.-A. Dupret, M. J. P. F. G. Monteiro, N. C. Santos

Abstract.
It is well known that asteroseismology is the unique technique permitting the study of the internal structure of pulsating stars using their pulsational frequencies, which is per se very important. It acquires an additional value when the star turns out to be a planet host. In this case, the astroseismic study output may be a very important input for the study of the planetary system.
With this in mind, we use the large time-span of the Kepler public data obtained for the star system HAT-P-7, first to perform an asteroseismic study of the pulsating star using Time-Dependent-Convection models.
Secondly, we make a revision of the planet properties in the light of the astroseismic study.

20th Stellar Pulsation Conference Series
Granada, Spain
September 2011

Type: Oral comunication