Abstract Core-collapse supernovae are accompanied by formation of neutron stars. The gravitation energy is transformed into the energy of the explosion, observed as SN II, SN Ib,c type supernovae. We present results of 2-D MHD simulations, where the source of energy is rotation, and magnetic field serves as a ``transition belt" for the transformation of the rotation energy into the energy of the explosion. The toroidal part of the magnetic energy initially grows linearly with time due to differential rotation. When the twisted toroidal component strongly exceeds the poloidal field, magneto-rotational instability (MRI) develops, leading to a drastic acceleration in the growth of magnetic energy. Finally, a MHD shock wave is formed, producing a supernova explosion. Toy model of MRI development is presented. Mildly collimated jet is produced for dipole-like type of the initial field. Magnetorotational explosion may produce mirror asymmetric ejection, visible in the form of asymmetric jet, and formation of rapidly moving neutron stars - pulsars. Observational data on radio pulsars are discussed, which are well interpreted in this model.
Keywords supernovae jets magnetic field
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