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Clues on the Origins of hot Jupiters

Amaury H. M. J. Triaud
Observatoire de Genčve

Gas giants are regularly found quite close to their star, too close so that they could realistically have formed at their current orbit. Two competing theories are attempting to explain planetary orbital migration. I will present observations of the Rossiter-McLaughlin effect, an effect happening for transiting planets, which allow us to measure the angle between the planet's orbital spin and the star's spin axis. The distribution of those angles is a very important clue to understanding the origins of hot Jupiters.

2011 October 26, 15:00

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

Instituto de AstrofĆ­sica e CiĆŖncias do EspaƧo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa
FundaĆ§Ć£o para a CiĆŖncia e a Tecnologia COMPETE 2020 PORTUGAL 2020 UniĆ£o Europeia