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Paper: Verification of Proto-Planet Runaway Migration in a Massive Disk
Volume: 474, Numerical Modeling of Space Plasma Flows (ASTRONUM2012)
Page: 104
Authors: Li, S.; Li, H.
Abstract: Runaway migration of a proto-planet was first proposed and observed by Masset and Papaloizou (2003). D'Angelo et al. (2005) solved the same problem with locally refined grid and found that the migration rate is sharply reduced and no runaway occurs when the grid cells surrounding the planet are refined enough. To verify these two seemly contradictory results, we independently perform high-resolution simulations, solving the same problem as Masset and Papaloizou (2003), with and without disk self-gravity. Our numerical results confirm that the runaway migration indeed exists under certain circumstances. Our results also show that the torque from the co-orbital region, in particular the planet's Hill sphere, is the main contributor to the runaway migration.
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