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.