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Gamma-ray bursts: Potential sources of ultra high energy cosmic-rays

✍ Scribed by E. Waxman

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
180 KB
Volume
151
Category
Article
ISSN
0920-5632

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✦ Synopsis

The arguments suggesting an association between the sources of cosmological gamma-ray bursts (GRBs) and the sources of ultra-high energy cosmic rays (UHECRs) are presented. Recent GRB and UHECR observations are shown to strengthen these arguments. Predictions of the GRB model for UHECR production, that may be tested with large area high energy cosmic-ray detectors which are either operating or under construction, are outlined.

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## Abstract We discuss the possibility of observing distant accelerators of ultra high energy cosmic rays in synchrotron gamma rays. Protons propagating away from their acceleration sites produce extremely energetic electrons during photo‐pion interactions with cosmic microwave background photons.