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Search for an evidence of Fermi acceleration for SNR in a time dependence of metal abundance

S. Osone

astro-pharXiv:astro-ph/0305238

Abstract

A time dependence of a metal abundance of supernova remnant (SNR) have been found by Hughes et al. (1998). We interpret this time dependence is due to Fermi acceleration. If this interpretation is true, there is a metallicity dependence of this time scale. However, we could not find an evidence of Fermi acceleration.

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