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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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