The heaviest cosmic-ray nuclei

Details The heaviest cosmic-ray nuclei The heaviest cosmic-ray nuclei

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...299..334m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 299, Dec. 1, 1985, p. 334-340. Research supported by Washington University

Statistics

Computation

3

Abundance, Cosmic Rays, Heavy Nuclei, Nuclear Fusion, Particle Acceleration, Bismuth, Computational Astrophysics, Lead (Metal), Solar System

Scientific paper

The implications of abundance measurements of cosmic-ray nuclei heavier than Fe are examined in light of standard propagation models and nucleosynthetic theory. Suggestions that the cosmic-ray source abundances differ significantly from solar system abundances are not well supported by the data without assuming ad hoc models of preferential acceleration. The solar system abundances of Pb and Bi are split into r-, standard s-, and cyclic s-process components to assess the contributions of these nucleosynthetic processes to the cosmic-ray source. The apparent deficiency of Pb seen in the HEAO 3 HNE data might indicate an absence of Pb from the recycling s-process.

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