Gamma-Ray Bursts, Ultra High Energy Cosmic Rays, and Cosmic Gamma-Ray Background

Abstract

We argue that gamma-ray bursts (GRBs) may be the origin of the cosmic gamma-ray background radiation observed in GeV range. It has theoretically been discussed that protons may carry a much larger amount of energy than electrons in GRBs, and this large energy can be radiated in TeV range by synchrotron radiation of ultra-high-energy protons (\sim 10^{20} eV). The possible detection of GRBs above 10 TeV suggested by the Tibet and HEGRA groups also supports this idea. If this is the case, most of TeV gamma-rays from GRBs are absorbed in intergalactic fields and eventually form GeV gamma-ray background, whose flux is in good agreement with the recent observation.

Accepted version by Astroparticle Physics, after some revisions

References in corpus (10)

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• Supermassive Objects as Gamma-Ray Bursters

Cited by in corpus (13)

• Origin and Propagation of Extremely High Energy Cosmic Rays
• On the cosmic ray bound for models of extragalactic neutrino production
• Supersymmetric Dark Matter and the Extragalactic Gamma Ray Background
• The Signature of Large Scale Structures on the Very High Energy Gamma-Ray Sky
• Non-thermal Radiation of Cosmological gamma-ray Bursters
• Anisotropies in the Diffuse Gamma-Ray Background from Dark Matter with Fermi LAT: a closer look
• Galactic-Centre Gamma Rays in CMSSM Dark Matter Scenarios
• Searching the Footprint of WIMPZILLAs
• Constraining Dark Matter Properties with Gamma-Rays from the Galactic Center with Fermi-LAT
• Prospects for the detection of the prompt very-high-energy emission from $\gamma$-ray bursts with the High Altitude Detection of Astronomical Radiation experiment
• Is there an enhancement of muons at sea level from transient events?
• Muons enhancements at sea level in association with Swift-BAT and MILAGRO triggers
• Detectability of Prompt TeV Gamma Rays of Proton Synchrotron Origin from Gamma Ray Bursts by AMANDA/ICECUBE Detectors