Atmospheric Mass Loss from High Velocity Giant Impacts
Almog Yalinewich, Hilke E. Schlichting
(Submitted on 28 Nov 2018)
Using moving mesh hydrodynamic simulations, we determine the shock propagation and resulting ground velocities for a planet hit by a high velocity impactor. We use our results to determine the atmospheric mass loss caused by the resulting ground motion due to the impact shock wave. We find that there are two distinct shock propagation regimes: In the limit in which the impactor is significantly smaller than the target (Ri<