Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-06-18
Astronomy and Astrophysics
Astrophysics
4 Pages, accepted by AA Letters
Scientific paper
In isothermal disks the migration of protoplanets is directed inward. For small planetary masses the standard type-I migration rates are so fast that this may result in an unrealistic loss of planets into the stars. We investigate the planet-disk interaction in non-isothermal disks and analyze the magnitude and direction of migration for an extended range of planet masses. We have performed detailed two-dimensional numerical simulations of embedded planets including heating/cooling effects as well as radiative diffusion for realistic opacities. In radiative disks, small planets with M_planet < 50 M_Earth do migrate outward with a rate comparable to absolute magnitude of standard type-I migration. For larger masses the migration is inward and approaches the isothermal, type-II migration rate. Our findings are particularly important for the first growth phase of planets and ease the problem of too rapid inward type-I migration.
Crida Aurelien
Kley Wilhelm
No associations
LandOfFree
Migration of Protoplanets in Radiative Disks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Migration of Protoplanets in Radiative Disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Migration of Protoplanets in Radiative Disks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-272913