Second-Order Fermi Acceleration in the Interstellar Medium and Its Effects on Cosmic-Ray Electrons

Details Second-Order Fermi Acceleration in the Interstellar Medium and Its Effects on Cosmic-Ray Electrons Second-Order Fermi Acceleration in the Interstellar Medium and Its Effects on Cosmic-Ray Electrons

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.1997k&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

We investigated the diffusive reacceleration of cosmic rays in the interstellar space presented by Seo&Ptuskin(1994) and Heinbach&Simon(1995) in which different formulations are used. It becomes clear that the difference between their reacceleration coefficients is a factor of 11/6 (= (2 - α/2) with a Kolmogorov spectrum) for 1GeV cosmic rays. There is, however, little difference in the total energy gain of cosmic rays passing through the Galaxy. Using the same parameters as in the nuclei propagation, we calculated the reacceleration model for electrons.

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