Galactic source distribution of heavy cosmic rays and the energy dependent overabundance of 22Ne

Details Galactic source distribution of heavy cosmic rays and the energy dependent overabundance of 22Ne Galactic source distribution of heavy cosmic rays and the energy dependent overabundance of 22Ne

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999icrc....4..180s&link_type=abstract

Proceedings of the 26th International Cosmic Ray Conference. August 17-25, 1999. Salt Lake City, Utah, USA. Under the auspices o

Physics

Scientific paper

The abundances of heavy cosmic ray nuclei at the solar system are calculated in a 3 dimension galactic model with cylindrical symetry and with diffusive confinement. Special attention is paid to the dependence of the cosmic ray sources with galactic radius as a function of supernovae, gas and metallicity radial distributions and to the secondary production in the interstellar gas with radial dependent density. In this model the overabundance of 22Ne below ˜ 100 Gev/n is energy dependent. The abundance of the secondary products of 22 Ne is larger than in the exponential (leaky box) model.

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