Testing the neutrino annihilation model for launching GRB jets

Abstract

The mechanism behind the launching of gamma-ray-burst (GRB) jets remains debated resulting in large uncertainty over the jet composition. Both magnetohydrodynamical and neutrino annihilation models have been proposed for the energy extraction in a black hole/accretion-disc central engine. In particular, for the extreme accretion rates $\dot{M}\sim 0.1-1$~ M${}_{\odot }$s${}^{-1}$ expected for bursts of duration $T\lesssim 100$~s, the disc can be an efficient neutrino emitter. Neutrino-antineutrino annihilation results in an energy deposition rate at the jet that can, in principle, account for the burst's energetics. Recent discoveries of X-ray flares hours after the burst and of ultra-long GRBs suggest that GRB activity can last for $\sim 10^4$~s or longer. These long-lived events have fluence similar to that of classical GRBs. In view of these findings, we re-evaluate the neutrino annihilation model. We derive the maximum possible energy of a neutrino-powered jet as a function of the burst duration and show that the available energy drops fast for longer bursts. For a standard choice of the parameters, the model falls short by three to four orders of magnitude in explaining the observed energetics of events that last longer than $\sim 10^3$~s.

arXiv comment5 pages, 1 figure

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Cited by in corpus (21)

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• Prompt Gamma Ray Burst emission from gradual magnetic dissipation
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• Monte Carlo Neutrino Transport Through Remnant Disks from Neutron Star Mergers
• On the jet-ejecta interaction in 3D GRMHD simulations of binary neutron star merger aftermath
• Can black-hole neutrino-cooled disks power short gamma-ray bursts?
• Spontaneous Lorentz symmetry breaking effects on GRBs jets arising from neutrino pair annihilation process near a black hole
• Evolutions of stellar-mass black hole hyperaccretion systems in the center of gamma-ray bursts
• Identifying Black Hole Central Engines in Gamma-Ray Bursts
• Probing chiral and flavored $Z^{\prime }$ from cosmic bursts through neutrino interactions
• State-of-the-Art Collapsar Jet Simulations Imply Undetectable Subphotospheric Neutrinos
• The rapid decay phase of the afterglow as the signature of the Blandford-Znajek mechanism
• Neutrino pair annihilation ($\nu \bar{\nu }\to e^{-}{e}^{+}$) in the presence of quintessence surrounding a black hole
• Elastic Scattering in General Relativistic Ray Tracing for Neutrinos
• Maximal Jet Energy of Gamma-Ray Bursts through the Blandford-Znajek Mechanism
• Energizing gamma ray bursts via $Z^{\prime }$ mediated neutrino heating
• Deciphering the properties of the central engine in GRB collapsars
• Exploring GRBs and supernovae connection: does a superluminous hypernova population exist?
• Black hole to photosphere: 3D GRMHD simulations of collapsars reveal wobbling and hybrid composition jets
• Is gamma-ray burst polarization from photosphere emission?