Xavier Dumusque
CAUP

Abstract
The Sun presents a 11-year magnetic cycle that is characterized by a variation of the number of magnetic features on its surface. We know that in these magnetic regions the convection is greatly reduced, which implies a redshifted local spectrum. Therefore, a variation of the the number of magnetic features on the solar surface implies a radial-velocity variation...

12 January 2011, 13:30

Centro de Astrofísica
Rua das Estrelas
4150-762 Porto