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Effects of modified theories of gravity on neutrino pair annihilation energy deposition near neutron stars

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 Publication date 2020
  fields Physics
and research's language is English




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We study the neutrino pairs annihilation into electron-positron pairs ($ u+{bar u}to e^- + e^+$) near the surface of a neutron star. The analysis is performed in the framework of extended theories of gravity. The latter induce a modification of the minimum photon-sphere radius ($R_{ph}$) and the maximum energy deposition rate near to $R_{ph}$, as compared to ones of General Relativity. These results might lead to an efficient mechanism for generating GRBs.



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