Disks, Extrasolar Planets and Migration

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 αand 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.

22 pages (including 3 figures), LaTeX, uses kluwer.cls, to be published in 'From Dust to Terrestrial Planets', eds W. Benz, R. Kallenbach, G. Lugmair and F. Podosek, ISSI Space Sciences Series No. 9, reprinted in Space Science Reviews (January 1, 2000)

References in corpus (2)

• Models of the in situ formation of detected extrasolar giant planets
• Critical Protoplanetary Core Masses in Protoplanetary Disks and the Formation of Short-Period Giant Planets

Cited by in corpus (6)

• Critical Protoplanetary Core Masses in Protoplanetary Disks and the Formation of Short-Period Giant Planets
• Planet formation and migration
• Extra-Solar Planets
• Solar Nebula Magnetohydrodynamics
• Simulations of planet-disc interactions using Smoothed Particle Hydrodynamics
• A Possible Hybrid Scenario for Gas Giant Planet Formation in Rings