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Chemical anomalies in stars with planets?

Elisa Delgado Mena

The discovery of more than 700 extrasolar planets has given us the opportunity to thoroughly study their host stars. The determination of chemical abundances provide us with unique information not only about the stellar atmospheres but also about the processes that take place inside the stars and how they have been formed. The first difference we came across between stars with and without planets was that the former are on average more metallic but other trends have been reported during these years. I will make a short review about these studies and focus more specifically on light elements and the information they can give us about the formation of planetary systems.

2012 June 20, 13:30

Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia