Pulsar natal kick via neutrino-triggered magnetorotational asymmetry

The sterile neutrino mechanisms for pulsar natal kicks are reanalyzed. The necessary strength of the magnetic field generated in a supernova explosion is shown to have been underestimated significantly in previous works. An alternative mechanism for pulsar natal kicks involving only standard neutrinos in which the outgoing neutrino flux in a supernova explosionwith the generation of a strong toroidal magnetic field leads to a magnetic field redistribution in the ??upper?? and ??lower?? hemispheres of the supernova envelope is discussed. The emerging magnetic field pressure asymmetry can produce a pulsar natal kick.