Kick torsion of magnetized medium by neutrinos

Abstract

Abstract Dominated neutrino-nucleon processes in a remnant envelope of the collapsing star with a strong magnetic field are investigated. The transferred by neutrinos momentum asymmetry along the field direction is obtained. It is shown that in the toroidal magnetic field these processes can develop a torque which quickly spins-up the envelope. An influence of the neutrino “spin-up” effect on a dynamics of the collapsar envelope is discussed and numerically estimated.