Ultra-high Energy Cosmic Rays and Neutrinos from Gamma-Ray Bursts, Hypernovae and Galactic Shocks

TL;DR

This paper reviews gamma-ray burst models and their potential to produce ultra-high energy cosmic rays and neutrinos, analyzing observational constraints and alternative astrophysical sources like hypernovae and galaxy shocks.

Contribution

It compares standard and new GRB models for cosmic ray and neutrino production, incorporating recent observational constraints and alternative astrophysical sources.

Findings

Standard GRB models are constrained by IceCube, Auger, and TA observations.

Hypernovae and galaxy shocks are viable sources for PeV neutrinos.

Newer GRB models may better explain recent neutrino detections.

Abstract

I review gamma-ray burst models (GRBs) and observations, and discuss the possible production of ultra-high energy cosmic rays and neutrinos in both the standard internal shock models and the newer generation of photospheric and hadronic GRB models, in the light of current constraints imposed by IceCube, Auger and TA observations. I then discuss models that have been proposed to explain the recent astrophysical PeV neutrino observations, including star-forming and star-burst galaxies, hypernovae and galaxy accretion and merger shocks.