Published April 15, 1983
| Published
Journal Article
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Cosmic-ray abundances of Sn, Te, Xe, and BA nuclei measured on HEAO 3
Abstract
Elements with even atomic number (Z) in the interval 50 ≤ Z ≤ 56 have been resolved in the cosmic radiation using the Heavy Nuclei Experiment on the HEAO 3 satellite. The observation that _(50)Sn and _(56)Ba are more abundant than _(52)Te and _(54)Xe is inconsistent with a pure r-process cosmic-ray source. Adjustment of source abundances for an enhancement of those elements with a low first ionization potential does not change this conclusion.
Additional Information
© 1983 American Astronomical Society. Received 1982 November 8; accepted 1982 December 15. We thank N. S. Collins, B. W. Gauld, D.P. Grossman, and B. J. Newport for assistance in programming for data analysis. The research was supported in part by NASA under contracts NAS 8-27976, 77, 78 and grants NGR 05-002-160, 24-005-050, and 26-008-001.Attached Files
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Additional details
- Eprint ID
- 44802
- Resolver ID
- CaltechAUTHORS:20140409-080134015
- NASA
- NAS 8-27976
- NASA
- NAS 8-27977
- NASA
- NAS 8-27978
- NASA
- NGR 05-002-160
- NASA
- NGR 24-005-050
- NASA
- NGR 26-008-001
- Created
-
2014-04-09Created from EPrint's datestamp field
- Updated
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2023-10-26Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory