A talk will be given by Dr. Rolf Kuiper (MPIA Heidelberg & University of Tuebingen, Germany). Rolf is visiting LERMA/ENS Monday and Tuesday next week and can be found in D18.

Date: Monday 07/01/2013 Time: 13:30
Place: Bureau L269B (D18) Journal Club

Title: "Radiation pressure in massive star formation"

This scenario left unclear the formation of these vortices. Here we are interested in a formation process for the vortices that was initially studied in the context of microquasars accretion disks and jet formation: the Rossby wave instability.

In this talk, I will show that this instability is a a powerful mechanism to form such structures in a global 3D disk. I will present simulations of this instability showing the 3D configuration of the vortices and how the dynamical coupling between dust and gas can lead to the concentration of the solids in these large scale structures.