Magneto-rotational instability in the accreting envelope of a protostar

The problem of the role of magnetic field in the collapse of gas-dust cloud into a massive gravitating object was considered. The accretion in astrophysical disks is the consequence of angular momentum transport. As one of the possible mechanisms of such transport, the large-scale vortex structures created by the magneto-rotational instability are considered. The numerical modeling of rotational motion of astrophysical gas was carried out with Godunov-type numerical scheme.