The Magnetospheric Flare on Compact Magnetized Object (Neutron Star or White Dwarf) - Model for Cosmological Gamma-Ray Burst (GRB)
Abstract
The SN explosion in the closed binary can give the magnetospheric flare possessing the properties of GRB. The SN shock, flowing around the magnetosphere of a magnetized neutron star or a white dwarf, produces a narrow magnetic tail 109 cm long, 108 cm wide and a magnetic field of 106 Gauss. Fast particles (Lorentz factor of 104), generated in the tail by reconnection processes, radaite gamma rays of the 100 KeV - 1 MeV energies. The duration of radiation T<1 sec corresponds to a short GRB. Apart, the powerful shock can tear and accelerate part of the tail. That is the relativistic, strongly magnetized jet, producing gamma radiation and also X-rays and optic afterglow. That is long (T> 10 sec) GRB. The duration of the afterglow is inversly proportional to the photon energy and is several months for optic.
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