Effects of Modified Theories of Gravity on Neutrino Pair Annihilation Energy Deposition near Neutron Stars
Gaetano LambiaseDipartimento di Fisica “E.R Caianiello,” Università degli Studi di Salerno, Via Giovanni Paolo II, I-132-84084 Fisciano (SA), ItalyLeonardo MastrototaroDipartimento di Fisica “E.R Caianiello,” Università degli Studi di Salerno, Via Giovanni Paolo II, I-132-84084 Fisciano (SA), Italy
2020en
ABI
Abstract
Abstract We study the neutrino pair annihilation into electron–positron pairs ( ) near the surface of a neutron star. The analysis is performed in the framework of extended theories of gravity. The latter induce a modification of the minimum photon sphere radius ( R ph ) and the maximum energy deposition rate near R ph , as compared to those of general relativity. These results might lead to an efficient mechanism for generating GRBs.
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