A gamma-ray signature of energetic sources of cosmic-ray nuclei
β Scribed by Alexander Kusenko; M.B. Voloshin
- Book ID
- 113852621
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- English
- Weight
- 159 KB
- Volume
- 707
- Category
- Article
- ISSN
- 0370-2693
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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 photoβpion interactions with cosmic microwave background photons.
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, t