Acceleration and survival of ultrahigh-energy cosmic-ray nuclei in gamma-ray bursts and hypernovae

Details Acceleration and survival of ultrahigh-energy cosmic-ray nuclei in gamma-ray bursts and hypernovae Acceleration and survival of ultrahigh-energy cosmic-ray nuclei in gamma-ray bursts and hypernovae

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aps..apr.e8003r&link_type=abstract

American Physical Society, 2008 APS April Meeting and HEDP/HEDLA Meeting, April 11-15, 2008, abstract #E8.003

Astronomy and Astrophysics

Astrophysics

Scientific paper

Recent results from the Pierre Auger Observatory hint that ultrahigh-energy cosmic-rays above an EeV energy may be composed of heavy nuclei rather than nucleons. This naturally leads to the questions of their origin and acceleration at the astrophysical objects. Gamma-ray bursts and hypernovae have been proposed to be the sources of ultrahigh-energy cosmic-rays. We explore different physical conditions under which heavy nuclei may be accelerated and survive in the environment of these sources, and report our findings.

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