The Elemental and Isotopic Composition of Galactic Cosmic Ray Nuclei
- Creators
-
Mewaldt, R. A.
Abstract
Galactic cosmic rays represent a directly accessible sample of matter that originates outside the solar system. The elemental and isotopic composition of this sample of high-energy matter contains a record of nucleosynthesis in other regions of the galaxy, and of subsequent nuclear and electromagnetic interactions that have altered its composition. There have recently been significant new advances in reading this record, brought about in large part by the launch of new high-resolution instrumentation. In particular, measurements of the abundances of individual elements have now been extended into the upper 2/3 of the periodic table, and the individual isotopes of a number of heavy cosmic ray nuclei have recently been resolved.
Additional Information
© 1983 by the American Geophysical Union. I wish to thank E. C. Stone for several suggestions that helped define the focus and improve the balance of this report. This work was supported in part by NASA under contract NAS5-20721 and grant NGR 05-002-160.Attached Files
Published - 1982-05.pdf
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Additional details
- Eprint ID
- 45081
- Resolver ID
- CaltechAUTHORS:20140421-133326541
- NASA
- NAS5-20721
- NASA
- NGR 05-002-160
- Created
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2014-04-24Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1982-05