CoRot observations of active giants: preliminary results
Abstract
We have analysed rotation modulated light-curves of active giants observed with CoRot using spots model. Preliminary results suggest an increase of the surface spot coverage with decreasing rotation period. A maximum of the surface spot coverage seems to occur on giants with effective temperature around 5100 K. Confirmation and interpretation of these preliminary results require groundbased follow-up observations to measure activity indicators, to identify binary systems, and to determine the stellar parameters and evolutionary status of the sample giants.
- Publication:
-
15th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
- Pub Date:
- February 2009
- DOI:
- 10.1063/1.3099253
- Bibcode:
- 2009AIPC.1094..864G
- Keywords:
-
- 97.20.Li;
- 97.10.Kc;
- 97.10.Jb;
- Giant and subgiant stars;
- Stellar rotation;
- Stellar activity;
- giant stars;
- stellar rotation;
- star formation