Published August 1, 1981
| Published
Journal Article
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Cosmic-ray abundances of elements with atomic number 26 ≤ Z ≤ 40 measured on HEAO 3
Abstract
Individual elements in the cosmic radiation of even atomic number (Z) in the interval 26 ≤ Z ≤ 40 have been resolved and their relative abundances measured. The results are inconsistent with a cosmic-ray source whose composition in this charge interval is dominated by r-process nucleosynthests. The ratios of cosmic-ray source abundances to solar system abundances in this interval follow the same general correlation with first ionization potential as for the lighter elements although there are deviations in detail.
Additional Information
© 1981 The American Astronomical Society. Received 1981 March 9; accepted 1981 April 16. We thank T. Aufrance, B. Gauld, D. Grossman, K. Krombel, and D. Mitchell for assistance in programming for data analysis; R. N. F. Walker for development of the propagation code, and S. H. Margolis and K. L. Hainebach for the program to evaluate cross sections for the propagation code. The research was supported in part by NASA under contracts NAS8- 27976,77,78 and grants NGR 05-002-160, 24-005-050, and 26-008-001.Attached Files
Published - 1981ApJ___247L_115B.pdf
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1981ApJ___247L_115B.pdf
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Additional details
- Eprint ID
- 43787
- Resolver ID
- CaltechAUTHORS:20140212-075813791
- NAS8-27976
- NASA
- NAS8-27977
- NASA
- NAS8-27978
- NASA
- NGR 05-002-160
- NASA
- NGR 24-005-050
- NASA
- NGR 26-008-001
- NASA
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2014-02-13Created from EPrint's datestamp field
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2021-11-10Created from EPrint's last_modified field