EDP Sciences
Free access
Issue
A&A
Volume 459, Number 1, November III 2006
Page(s) L17 - L20
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:20066304


A&A 459, L17-L20 (2006)
DOI: 10.1051/0004-6361:20066304

Letter

Halting type I planet migration in non-isothermal disks

S.-J. Paardekooper1 and G. Mellema2, 1

1  Leiden Observatory, Postbus 9513, 2300 RA Leiden, The Netherlands
    e-mail: paardeko@strw.leidenuniv.nl
2  Stockholm Observatory, AlbaNova University Center, Stockholm University, 106 91 Stockholm, Sweden
    e-mail: garrelt@astro.su.se

(Received 28 August 2006 / Accepted 20 September 2006)

Abstract
Aims.We investigate the effect of including a proper energy balance on the interaction of a low-mass planet with a protoplanetary disk.
Methods.We use a three-dimensional version of the RODEO method to perform hydrodynamical simulations including the energy equation. Radiation is included in the flux-limited diffusion approach.
Results.The sign of the torque is sensitive to the ability of the disk to radiate away the energy generated in the immediate surroundings of the planet. In the case of high opacity, corresponding to the dense inner regions of protoplanetary disks, migration is directed outward, instead of the usual inward migration that was found in locally isothermal disks. For low values of the opacity we recover inward migration and show that torques originating in the coorbital region are responsible for the change in migration direction.


Key words: radiative transfer -- hydrodynamics -- methods: numerical -- planets and satellites: formation



© ESO 2006

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access.

An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account.
    In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.