Effects of Modified Theories of Gravity on Neutrino Pair Annihilation Energy Deposition near Neutron Stars

2020/09/18 by Gaetano Lambiase, Leonardo Mastrototaro · 24 citations
Physics and Astronomy · #Annihilation #Astrophysics #Astrophysics and Cosmic Phenomena #Bar (unit) #Cosmology and Gravitation Theories #Electron #Gamma-ray bursts and supernovae #General relativity #Neutrino #Neutron #Neutron star #Nuclear physics #Particle physics #Physics #RADIUS #Theoretical physics #astro-ph.HE #gr-qc #hep-ph

paper · pdf · doi:10.3847/1538-4357/abba2c

published in The Astrophysical Journal 904(1), 19 (IOP Publishing) · Accepted for pubblication in ApJ

arxiv created 2020/09/18 · openalex created_date 2020/09/25 · openalex publication_date 2020/11/01 · arxiv updated 2020/11/23 · openalex updated_date 2026/08/05

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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Cited by

• Testing extended theories of gravity with GRBs
• The accretion disk and neutrino propagation of Barrow-modified Black Hole
• Neutrino dynamics in a non-commutative spacetime
• Influence of a Kalb-Ramond black hole on neutrino behavior