Propagation of injected cosmic rays under distributed reacceleration

Details Propagation of injected cosmic rays under distributed reacceleration Propagation of injected cosmic rays under distributed reacceleration

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300...32s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 300, Jan. 1, 1986, p. 32-40.

Statistics

Computation

37

Computational Astrophysics, Distribution (Property), Galactic Cosmic Rays, Particle Acceleration, Monte Carlo Method, Shock Wave Propagation, Spectral Energy Distribution

Scientific paper

In the stochastic cosmic-ray reacceleration model it is assumed that the particles obtain their energy not from discrete cosmic-ray sources but from subsequent reaccelerations in the Galaxy by encountering blast waves from supernova remnants. The authors present a calculation in which they assume cosmic-ray pre-acceleration by the sources, but also allow for reacceleration of propagating particles. It is shown that such a model can be accommodated by the data, but it requires a modification of the path-length distribution by predicting a weaker energy dependence of the mean traversed matter.

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