Published 1983
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Abundances of 'Secondary' Elements Among the Ultraheavy Cosmic Rays - Results from HEAO-3
Abstract
The HEAO-3 Heavy Nuclei Experiment has measured elemental abundances of ultraheavy cosmic rays near earth. The elements with atomic number (Z) in the intervals 44 < Z < 48 and 62 < Z < 74 arriving at earth are expected to have significant secondary components. However, their source abundances are unlikely to be low enough to warrant treating them as pure secondaries. The present results are consistent with solar system abundances modified for first ionization potential with possibly some enhancement of the r to s ratio.
Additional Information
This work was supported in part by NASA under contracts NAS8-27976, 77, 78 and grants NGR 05-002-160, 24-005-050, and NAG8-448.Attached Files
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Additional details
- Eprint ID
- 45173
- Resolver ID
- CaltechAUTHORS:20140423-143400546
- NAS8-27976
- NASA
- NAS8-27977
- NASA
- NAS8-27978
- NASA
- NGR 05-002-160
- NASA
- NGR 24-005-050
- NASA
- NGR 26-008-001
- NASA
- NAG8-448
- NASA
- Created
-
2014-04-23Created from EPrint's datestamp field
- Updated
-
2020-03-09Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1983-22