Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...120..130m&link_type=abstract
Astronomy and Astrophysics, Vol.120, P. 130, 1983
Astronomy and Astrophysics
Astrophysics
28
Scientific paper
A close comparison is made between the very anomalous abundances found in models of Wolf-Rayet stars and the excesses of several isotopic ratios in the galactic cosmic rays (GCR). Attention is paid to the dilution problem of one peculiar GCR source in the overall flux. The reliable excesses of the abundance of 12C, of the isotopic ratios 22Ne/20Ne, 25Mg/24Mg, and 26Mg/24Mg in GCR can be remarkably well accounted for by a unique dilution factor of 1 particle originating from WR stars among 50 particles in the overall GCR flux. The author examines also whether the anomalous neon component (Ne-E heavily enriched in 22Ne) in some carbonaceous chondrites could originate from grains condensed in the winds of some pre-solar WC stars.
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