High Energy Neutrinos from Dissipative Photospheric Models of Gamma Ray Bursts

TL;DR

This paper models high energy neutrino production in gamma-ray bursts using dissipative photospheric models with different jet dynamics, comparing results to conventional models and current IceCube constraints.

Contribution

It introduces detailed neutrino spectra calculations for dissipative photospheric models, expanding beyond traditional internal shock models.

Findings

Neutrino spectra from dissipative photospheric models are compatible with IceCube constraints.

Only extreme parameter models are close to current detection limits.

Future detectors may distinguish between different jet models.

Abstract

We calculate the high energy neutrino spectrum from gamma-ray bursts where the emission arises in a dissipative jet photosphere determined by either baryonically or magnetically dominated dynamics, and compare these neutrino spectra to those obtained in conventional internal shock models. We also calculate the diffuse neutrino spectra based on these models, which appear compatible with the current IceCube 40+59 constraints. While a re-analysis based on the models discussed here and the data from the full array would be needed, it appears that only those models with the most extreme parameters are close to being constrained at present. A multi-year operation of the full IceCube and perhaps a next generation of large volume neutrino detectors may be required in order to distinguish between the various models discussed.