Name of the Speaker(s): Mr. Yurij M. Toropin
Institution: Russia 119899, Moscow, Universitetskij Pr. 13,
Sternberg Astronomical Institute,
Department of Astrophysics and Stellar Astronomy (room 52)
Title of the communication: Simulation of Jets Formation during External Accretion to Magnetised Disks.
Preliminary abstract:
A process of a supersonic accretion of matter to a central massive object with a surrounding disk is investigated numerically in non-relativistic approximation. Ordered poloidal magnetic field penetrates the disk. Results of 2,5D MHD simulations show that a well collimated supersonic outflow (jet) is formed alonf a magnetic field lines parrallel to rotation axis of the system. Significant part of accreting matter (~10%) is pushed out by the gas pressure gradient from the vicinity of the disk and the central object. The outflow is proceeded at a quasi-steady regime. A system of oblique shock waves formed knotty structure inside the outflow. At the advanced phase of our simulation the supersonic accretion inflow from directions near an equatorial plane of the disk and the supersonic outflow along the rotational axis of the disk are combined.