Cosmic GRB energy-redshift relation and Primordial flares as possible energy source for the central engine
Abstract
By considering similar observed properties of gamma ray bursts (GRB) and solar flares with the prevailing physical conditions in the cosmic environment, the following study suggests that most likely and promising energy source for the central engine which triggers GRB may be due to primordial flares, solar flare like phenomena, at the sites of inter galactic or inter galactic clusters in the early universe. The derived energy-redshift relation, E = E0(1+z)3 (where E is the amount of energy released, z is the redshift of GRB and E0 is a constant which is estimated to be ~ 1052 ergs), from the simple flare mechanism, is confirmed from the least square fit with the observed energy-redshift relation. Some of the physical parameters like length scale, strength of magnetic field, etc., of the flaring region of the GRB are estimated.