Clues on the Origins of hot Jupiters
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: Thursday, 4 October 2012 Time: 11:30 Where: Université de Montréal Pavillon Roger-Gaudry, local D-460 Contact: Étienne Artigau