CoRot observations of active giants: Preliminary results

P. Gondoin; M. Fridlund; M. J. Goupil; F. Baudin; R. Samadi; C. Barban; K. Belkacem; T. Corbard; M. A. Dupret; B. Foing; R. Den Hartog; Y. Lebreton; J. Lochard; P. Mathias; E. Michel; P. Morel; A. Moya; A. Palacios; J. P. Zahn

doi:10.1063/1.3099253

CoRot observations of active giants: Preliminary results

P. Gondoin
, M. Fridlund
, M. J. Goupil
, F. Baudin
, R. Samadi
, C. Barban
, K. Belkacem
, T. Corbard
, M. A. Dupret
, B. Foing
, R. Den Hartog
, Y. Lebreton
, J. Lochard
, P. Mathias
, E. Michel
, P. Morel
, A. Moya
, A. Palacios
, J. P. Zahn

Institute of Astronomy

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

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.

Original language	English
Pages (from-to)	864-867
Number of pages	4
Journal	AIP Conference Proceedings
Volume	1094
DOIs	https://doi.org/10.1063/1.3099253
Publication status	Published - 2009
Event	15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - St. Andrews, United Kingdom Duration: 21 Jul 2008 → 25 Jul 2008

Keywords

Giants
Starspots
Stellar activity
Stellar evolution
Stellar rotation

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10.1063/1.3099253

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Gondoin, P., Fridlund, M., Goupil, M. J., Baudin, F., Samadi, R., Barban, C., Belkacem, K., Corbard, T., Dupret, M. A., Foing, B., Den Hartog, R., Lebreton, Y., Lochard, J., Mathias, P., Michel, E., Morel, P., Moya, A., Palacios, A., & Zahn, J. P. (2009). CoRot observations of active giants: Preliminary results. AIP Conference Proceedings, 1094, 864-867. https://doi.org/10.1063/1.3099253

@article{97f2028f3e024811ab1ab4b922ea08b5,

title = "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.",

keywords = "Giants, Starspots, Stellar activity, Stellar evolution, Stellar rotation",

author = "P. Gondoin and M. Fridlund and Goupil, \{M. J.\} and F. Baudin and R. Samadi and C. Barban and K. Belkacem and T. Corbard and Dupret, \{M. A.\} and B. Foing and \{Den Hartog\}, R. and Y. Lebreton and J. Lochard and P. Mathias and E. Michel and P. Morel and A. Moya and A. Palacios and Zahn, \{J. P.\}",

year = "2009",

doi = "10.1063/1.3099253",

language = "English",

volume = "1094",

pages = "864--867",

journal = "AIP Conference Proceedings",

issn = "0094-243X",

publisher = "American Institute of Physics",

note = "15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun ; Conference date: 21-07-2008 Through 25-07-2008",

}

Gondoin, P, Fridlund, M, Goupil, MJ, Baudin, F, Samadi, R, Barban, C, Belkacem, K, Corbard, T, Dupret, MA, Foing, B, Den Hartog, R, Lebreton, Y, Lochard, J, Mathias, P, Michel, E, Morel, P, Moya, A, Palacios, A & Zahn, JP 2009, 'CoRot observations of active giants: Preliminary results', AIP Conference Proceedings, vol. 1094, pp. 864-867. https://doi.org/10.1063/1.3099253

TY - JOUR

T1 - CoRot observations of active giants

T2 - 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun

AU - Gondoin, P.

AU - Fridlund, M.

AU - Goupil, M. J.

AU - Baudin, F.

AU - Samadi, R.

AU - Barban, C.

AU - Belkacem, K.

AU - Corbard, T.

AU - Dupret, M. A.

AU - Foing, B.

AU - Den Hartog, R.

AU - Lebreton, Y.

AU - Lochard, J.

AU - Mathias, P.

AU - Michel, E.

AU - Morel, P.

AU - Moya, A.

AU - Palacios, A.

AU - Zahn, J. P.

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

KW - Giants

KW - Starspots

KW - Stellar activity

KW - Stellar evolution

KW - Stellar rotation

UR - https://www.scopus.com/pages/publications/64849090847

U2 - 10.1063/1.3099253

DO - 10.1063/1.3099253

M3 - Conference article

AN - SCOPUS:64849090847

SN - 0094-243X

VL - 1094

SP - 864

EP - 867

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

Y2 - 21 July 2008 through 25 July 2008

ER -

CoRot observations of active giants: Preliminary results

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