Seismic analysis of two solar-type stars observed by Kepler
Abstract
After more than one year of operation, the Kepler photometer has already provided exquisite data of solar-type stars. During the survey phase, 42 stars have been continuously observed. It appeared that five stars show evidence of oscillations, even though they are rather faint (magnitudes from 10.5 to 12). We will show the results of the seismic analysis of the light curves of two of these stars, which have been observed during more than 8 months. This analysis led to the determination of the acoustic-mode global parameters (mean large separation, mean small separation...), lists of frequencies built by comparing the results of several teams, some parameters of the modes, and the rotation period of the stellar surface.
- Publication:
-
SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
- Pub Date:
- December 2011
- DOI:
- 10.48550/arXiv.1110.0873
- arXiv:
- arXiv:1110.0873
- Bibcode:
- 2011sf2a.conf..221M
- Keywords:
-
- asteroseismology;
- solar-type stars;
- data analysis;
- oscillations;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 4 pages, 1 figure. To appear in the proceedings of the Societe Francaise d'Astronomie et d'Astrophysique (SF2A) meeting, 20-23 June 2011, Paris, France