Author: Tian Xi Zhang
Abstract: Gamma ray bursts (GRBs) are the most energetic events occurred in the universe. It is generally believed that the long GRBs are produced by the collapses of massive stars, while the short GRBs are produced by the mergers of binary neutron stars or black holes. However, the emission mechanism or the mean by which GRB progenitors convert their energies into high-frequency radiations remains poorly understood. In addition, the fundamental spectral components and properties of GRBs and their physical origins are still unclear. Recently, the author has proposed a new GRB emission mechanism according to his new black hole cosmological model. It has been shown that a black hole, when it collapses its star or merges with another black hole, becomes dynamic. Its broken event horizon cannot hold and thus leak the inside hot (so high frequency) blackbody radiation, which can lead to a GRB. A black hole that collapses its star produces a long GRB and releases all the gravitational potential energy of the star as gamma rays. A black hole that merges with another black hole produces a short GRB and releases half of their blackbody radiation as gamma rays. The amount of energy emitted by the dynamic black holes is consistent with the GRB energy measurements. This study investigates the GRB emission spectra and explains the GRB spectral measurements according to this new GRB emission mechanism.