Nonextensive thermal sources of cosmic rays?

Details Nonextensive thermal sources of cosmic rays? Nonextensive thermal sources of cosmic rays?

2009-04-03

arxiv.org/abs/0904.0528v3

Cent. Eur. J. Phys. $\bullet$ 8(5) $\bullet$ 2010 $\bullet$ 726-736

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 3 figures, rewritten and updated version, to be published in Centr. Eur. J. Phys

Scientific paper

10.2478/s11534-009-0164-z

The energy spectrum of cosmic rays (CR) exhibits power-like behavior with a very characteristic "knee" structure. We consider a possibility that such a spectrum could be generated by some specific nonstatistical temperature fluctuations in the source of CR with the "knee" structure reflecting an abrupt change of the pattern of such fluctuations. This would result in a generalized nonextensive statistical model for the production of CR. The possible physical mechanisms leading to these effects are discussed together with the resulting chemical composition of the CR, which follows the experimentally observed abundance of nuclei.

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