The gamma-ray burst arising from neutrino pair annihilation in the static and spherically symmetric black-hole-like wormholes

TL;DR

This paper investigates neutrino pair annihilation in Damour-Solodukhin wormholes, revealing their hotter accretion disks and potential to produce gamma-ray bursts, with energy deposition rates slightly differing from black holes.

Contribution

It introduces the analysis of neutrino annihilation in wormholes as black hole mimickers and compares their energy deposition rates to those of black holes.

Findings

Wormhole accretion disks are hotter than black holes.

Neutrino pair annihilation can produce gamma-ray bursts in wormholes.

Energy deposition rates are sensitive to metric deviations from black holes.

Abstract

We look into the neutrino-antineutrino pair ($\nu+\bar{\nu}\longrightarrow e^{-}+e^{+}$) annihilation in the Damour-Solodukhin wormhole spacetime whose metric component involves a shift in contrast to the similar black hole. The deep analysis of the surface temperature of the accretion disk of static, spherically symmetric black-hole-like wormholes from R. Kh. Karimov et.al. reveals that the accretion disks of the wormholes are hotter than that of comparable black holes, indicating that the wormholes accretion disk can release neutrinos. Further we investigate the energy deposition rate from the neutrino pair annihilation around the Damour-Solodukhin wormhole thought as a mimicker of Schwarzschild black hole. By comparison made between the black-hole-like wormhole and the similar black hole, we demonstrate that the wormhole's accretion disk drawing the annihilation can become a source of gamma-ray burst although the more significant deviation from the similar black hole reduces the emitted power slightly. The ratio of energy deposition per unit time from the annihilation surrounding the accretion disk of the Damour-Solodukhin wormhole over the emitting power of black hole might alter noticeably depending on how slightly the metrics of the wormhole differ from the black hole spacetime.