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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Lambiase et al. (2020) studied this question.
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