Cosmological gamma-ray bursts and the cosmic ray flux above 1019 eV

Details Cosmological gamma-ray bursts and the cosmic ray flux above 1019 eV Cosmological gamma-ray bursts and the cosmic ray flux above 1019 eV

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aipc..384..263w&link_type=abstract

Gamma-ray bursts: 3rd Huntsville symposium. AIP Conference Proceedings, Volume 384, pp. 263-270 (1996).

Mathematics

Logic

1

Unidentified Sources Of Radiation Outside The Solar System, Cosmology

Scientific paper

The objective of my talk is to present a scenario in which cosmic rays (CR's) above 1019 eV and cosmological γ-ray bursts (GRB's) have a common origin. This scenario is consistent with the observed CR flux provided that each burst produces similar energies in γ-rays and in protons above 1019 eV, with a differential power law proton spectrum d log N/d log E~-2. Protons may be accelerated by Fermi's mechanism to energies ~1020 eV in a dissipative, ultra-relativistic wind, with luminosity and Lorentz factor high enough to produce a GRB. In this scenario, a correlation between the arrival directions of >1020 eV CR's and the angular positions of strong GRB's should not be detectable on a time scale <<100 yr. Alternative tests of the scenario are briefly discussed.

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