Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ennp.conf..225b&link_type=abstract
"EXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS . Proceedings of the Carpathian Summer School of Physics 2005 . Held 13-24 June
Astronomy and Astrophysics
Astrophysics
Scientific paper
Here we review some arguments of recent years about the origin of cosmic rays, both Galactic and extragalactic. The final decision has not been made, but for Galactic cosmic rays supernova explosions, into a predecessor stellar wind, or into the interstellar medium are the option explored the most. Other candidates are microquasars and Gamma Ray Bursts. It appears likely, that the physics of very massive star explosions, Gamma Ray Bursts, and the origin of cosmic rays is tightly linked. For extragalactic cosmic rays the situation is even less clear: The activity by nearby active galactic nuclei is perhaps the most compelling, but the decay of relic particles seems still quite plausible, while new particles produced in interactions close to active black holes, or perhaps even near the merger of two massive black holes are avenues that remain to be investigated. The future work on this quest remains fascinating.
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