Magnetic activity in the photosphere of CoRoT-Exo-2a Active longitudes and short-term spot cycle in a young Sun-like star
Context. The space experiment CoRoT has recently detected transits by a hot Jupiter across the disc of an active G7V star (CoRoT-Exo-2a) that can be considered as a good proxy for the Sun at an age of approximately 0.5 Gyr.Aims. We present a spot modelling of the optical variability of the star duri...
Main Authors: | Lanza, A, Pagano, I, Leto, G, Messina, S, Aigrain, S, Alonso, R, Auvergne, M, Baglin, A, Barge, P, Bonomo, A, Boumier, P, Cameron, A, Comparato, M, Cutispoto, G, Medeiros, D, Foing, B, Kaiser, A, Moutou, C, Parihar, P, Silva-Valio, A, Weiss, W |
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Format: | Journal article |
Sprog: | English |
Udgivet: |
2009
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