A Model for Non High Energy Gamma Ray Bursts and Sources of Ultra High Energy Cosmic Rays
Abstract
Description
As a progenitor of NHE (Non High Energy) GRBs, we propose a (C+O) star and a neutron star (black hole) close binary system. Since the (C+O) star is tidally locked, a new born pulsar should be a milli second pulsar (MSP). Dynamo will generate a superstrong magnetic field(SSM). The beam of the energy from the super strongly magnetized milli second pulsar can punch a hole in the supernova ejecta . Then the beam of gamma rays flows out of the ejecta. If we observe this beam from the lateral direction, it will be NHE-GRB. In this model the pulsar with the spin period about 1sec should exist in SN1998bw so that the searches for this pulsar in all the wave length are urgent. SSM-MSPs can accelerate protons up to Ultra High Energy. If a few percent of the beam energy of SSM-MSP in NHE-GRB event is in the form of UHECRs, the flux of the observed UHECRs can be explained. Then along the direction of each UHECR, a supernova remnant should be found. It is suggested that NHE-GRB is the progenitor of the soft gamma ray repeater which has also the superstrong magnetic field and is in the supernova remnant.
11 pages, Latex, Submitted to Prog.Theor. Phys.(Kyoto, Japan)
11 pages, Latex, Submitted to Prog.Theor. Phys.(Kyoto, Japan)