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CoRoT-2a Magnetic Activity: Hints for Possible Star–Planet Interaction

Pagano, Isabella; Lanza, Antonino F.; Baglin, Annie +3 more

CoRoT-2a is a young (≈0.5 Gyr) G7V star accompanied by a transiting hot-Jupiter, discovered by the CoRoT satellite (Alonso et al. Astron Astrophys 482:L21, 2008; Bouchy et al. Astron Astrophys 482:L25, 2008). An analysis of its photospheric activity, based on spot modelling techniques previously developed by our group for the analysis of the Sun a…