Published 1981
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The Elemental and Isotopic Composition of Galactic Cosmic Rays
- Creators
-
Mewaldt, R. A.
Abstract
Galactic cosmic rays represent a directly accessible sample of matter that originates outside the solar system. The element and isotope distribution of this high-energy material is a record that was molded in the fires of nucleosynthesis in other regions of the galaxy, and imprinted by subsequent nuclear and electromagnetic processes that have altered its composition. Recently, significant new advances have been achieved in reading this record, brought about in large part by the launch of new high-resolution instrumentation for measuring the charge, mass, and energy distribution of cosmic ray nuclides. In general, the data from these new experiments are telling us what is different about this extra-solar sample.
Additional Information
Copyright IUPAP. Provided by the NASA Astrophysical Data System. It is a pleasure to acknowledge informative discussions of the data with many experimenters, including P.H. Fowler, M. Israel and L. Koch, who contributed unpublished results from their experiments. I appreciate the use of unpublished calculations provided by S. Margolis, J.F. Ormes, R.J. Protheroe, R. Silberberg, C.J. Waddington, and M.E . Wiedenbeck. E.C. Stone made a number of helpful suggestions that improved the written version of this paper. Finally, I thank the Centre National d'Etudes Spatiales and the Centre National de lE._ Recherche Scientifigue for helping to support my stay in Paris. This work was supported in part by NASA under contract NAS5-20721 and grant NGR 05-001-160.Attached Files
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Additional details
- Eprint ID
- 45139
- Resolver ID
- CaltechAUTHORS:20140423-095156912
- NAS5-20721
- NASA
- NGR 05-001-160
- NASA
- Created
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2014-04-23Created from EPrint's datestamp field
- Updated
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2019-11-22Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1981-09