Clues on the Origins of hot Jupiters
Amaury Triaud
Université de Genève

Gas giants are regularly found quite close to their star, too close so that they could realistically have formed at their current orbit. Several processes are attempting to explain their orbital migration from their birthplace. I will present observations of the Rossiter-McLaughlin effect, a radial-velocity 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.

Date:	Jeudi, 4 octobre 2012
Time:	11:30
Where:	Université de Montréal
	Pavillon Roger-Gaudry, local D-460
Contact:	Étienne Artigau