Planetary Migration in Weakly Magnetized Turbulent Disks

Details Planetary Migration in Weakly Magnetized Turbulent Disks Planetary Migration in Weakly Magnetized Turbulent Disks

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.3604b&link_type=abstract

American Astronomical Society, ESS meeting #2, #36.04

Astronomy and Astrophysics

Astronomy

Scientific paper

The migration of low-mass planets in their nascent protoplanetary disks has recently received detailed attention. It may be directed inwards or outwards, depending on the magnitude of the corotation torque, the torque exerted on the planet by its coorbital region. The long-term evolution of the corotation torque is intimately related to viscous and thermal diffusion processes in the planet's coorbital region. However, its behavior in the presence of realistic turbulence is so far unknown. I will present the results of the first 3D MHD simulations investigating the properties of the corotation torque experienced by planets embedded in weakly magnetized turbulent disks. The impact of the new corotation torque our simulations have uncovered will be discussed.

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