Disks, Extrasolar Planets and Migration |
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Authors: | Caroline Terquem John CB Papaloizou Richard P Nelson |
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Institution: | (1) Lick Observatory, University of California, Santa Cruz, CA 95064, USA;(2) Astronomy Unit, Queen Mary & Westfield College, Mile End Road, London, E14NS, UK |
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Abstract: | We review results about protoplanetary disk models, protoplanet migration and formation of giant planets with migrating cores.
We first model the protoplanetary nebula as an α–accretion disk and present steady state calculations for different values
of α and gas accretion rate through the disk. We then review the current theories of protoplanet migration in the context
of these models, focusing on the gaseous disk–protoplanet tidal interaction. According to these theories, the migration timescale
may be shorter than the planetary formation timescale. Therefore we investigate planet formation in the context of a migrating
core, considering both the growth of the core and the build–up of the envelope in the course of the migration.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | Accretion Accretion Disks – Solar System: Formation – Planetary Systems |
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