1306.2274 (Kohta Murase et al.)

TeV-PeV Neutrinos from Low-Power Gamma-Ray Burst Jets inside Stars    [PDF]

Kohta Murase, Kunihito Ioka

We study high-energy neutrino production in collimated jets inside progenitors of gamma-ray bursts (GRBs) and supernovae, considering both collimation and internal shocks. We obtain simple, useful constraints, using the often overlooked point that shock acceleration of particles is ineffective at radiation-mediated shocks. Classical GRBs may be too powerful to produce neutrinos inside stars, which is consistent with IceCube non-detections. We find that ultra-long GRBs avoid such constraints and detecting the TeV signal will support giant progenitors. Low-power GRB classes including low-luminosity GRBs can contribute to the diffuse neutrino background that IceCube may detect, with a spectral steepening around PeV. The models can be tested with future GRB monitors.

View original: http://arxiv.org/abs/1306.2274