Evolution of massive and magnetized protoplanetary disks

Details Evolution of massive and magnetized protoplanetary disks Evolution of massive and magnetized protoplanetary disks

2004-02-16

arxiv.org/abs/astro-ph/0402373v1

Astronomy and Astrophysics

Astrophysics

8 pages, 7 figures, to appear in the proceedings of the XIXth IAP colloquium "Extrasolar Planets: Today and Tomorrow" held in

Scientific paper

We present global 2D and 3D simulations of self-gravitating magnetized tori. We used the 2D calculations to demonstrate that the properties of the MRI are not affected by the presence of self-gravity: MHD turbulence and enhanced angular momentum transport follow the linear growth of the instability. In 3D, we have studied the interaction between an $m=2$ gravitational instability and MHD turbulence. We found its strength to be significantly decreased by the presence of the latter, showing that both instabilities strongly interact in their non-linear phases. We discuss the consequences of these results.

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