Speaker
Dr
Sean Raymond
(Laboratoire d’Astrophysique de Bordeaux, France)
Description
The growth of outer gas giants naturally destabilizes the orbits of nearby
planetesimals. These are scattered in all directions -- many are ejected, but some are scattered inward toward the growing rocky planets (if they exist). In the Solar System, both the C-type asteroids and water delivery to Earth can be explained as a simple byproduct of Jupiter and Saturn's growth. I will explain the dynamics at play, and extrapolate to exoplanet systems with a range of orbital architectures.