  The high energy neutrino transitions with the photon and electron-positron
pair creation in a strong magnetic field in the framework of the Standard Model
are investigated. The process probabilities and the mean values of the neutrino
energy and momentum loss are presented. The asymmetry of outgoing neutrinos, as
a possible source of sufficient recoil ``kick'' velocity of a remnant and the
emission of e+ e- pairs and gamma-quanta in a ``polar cap'' region of a
remnant, as a possible origin of cosmological gamma-burst are discussed.
