Other
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..727..141w&link_type=abstract
GAMMA-RAY BURSTS: 30 YEARS OF DISCOVERY: Gamma-Ray Burst Symposium. AIP Conference Proceedings, Volume 727, pp. 141-145 (2004).
Other
1
Gamma-Ray Sources, Gamma-Ray Bursts, Neutrino, Muon, Pion, And Other Elementary Particles, Cosmic Rays, Cosmic Rays
Scientific paper
A model for high energy (>~ 1014 eV) cosmic rays (HECRs) from galactic and extra-galactic gamma-ray bursts is summarized. Relativistic outflows in gamma-ray bursts (GRBs) are assumed to inject power-law distributions of CR protons and ions to the highest ( >~ 1020 eV) energies. A diffusive propagation model for HECRs from a single recent GRB within ~ 1 kpc from Earth explains the CR spectrum near and above the knee. The CR spectrum at energies above ~ 1018 eV is fit with a component from extragalactic GRBs. By normalizing the energy injection rate to that required to produce the CR flux from extragalctic sources observed locally, we determine the amount of energy a typical GRB must release in the form of nonthermal hadrons. Our interpretation of the HECR spectrum requires that GRBs are hadronically dominated, which would be confirmed by the detection of HE neutrinos from GRBs.
Atoyan Armen
Dermer Carles D.
Wick Stuart Dean
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