Invited Presentation

Collisions during planet and satellite formation

Author(s): Hidenori Genda (ELSI, Titech)

Presenter: Hidenori Genda (Earth-Life Science Institute, Tokyo Institute of Technology)

Collisions are one of the most fundamental processes in planet and satellite formation in extrasolar planetary systems as well as our solar system. Here we review many types of collisions between dusts, planetesimals, protoplanets, super-Earths, and gas giant planets. We will also show our recent results of numerical simulations. For example, in collisions between planetesimals, we re-evaluated the critical impact energy for catastrophic disruption, which affects the growth of protoplanets. We will show Mars' satellites and Pluto's satellite (Charon) can be also formed via collisions.