Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005padeu..15..169p&link_type=abstract
In: Proceedings of the British-RomanianHungarian N+N+N Workshop for Young Researchers on Plasma- and Astrophysics: from laborato
Astronomy and Astrophysics
Astrophysics
Scientific paper
In the article "Cosmic Rays VIII" of Popescu we gave an model for the observed cosmic rays between 5×10^15 and 3×10^18 eV. Their surse is presumed to be supernova of stars that explode in their winds. The observed cosmic abundance at the source are affected by spallation in the supernova shell, by the difference in ionization degree (being one two times ionized) at the injection in the supernova shock, the stars with initial masses 15 M_{odot}leq Mleq 30 M_{odot}$ having a different contribution to them than the stars with 30 M_{odot}leq Mleq 50 M_{odot} and this is 2:1 for the elements with Zgeq 6. Still, the abundances after these corrections are different by a factor Z_{i}/Z_{He} where Z_{i} is the atomic number for the element i and Z_{He} the one for He. This paper is dedicated to the explanation of this factor and its physical meanings.
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