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The Elemental and Isotopic Composition of Galactic Cosmic Rays

Mewaldt, R. A. (1981) The Elemental and Isotopic Composition of Galactic Cosmic Rays. In: Proceedings of the 17th International Cosmic Ray Conference. Vol.13. CEN Saclay , Gif-sur-Yvette, France, pp. 49-68.

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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.

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Mewaldt, R. A.0000-0003-2178-9111
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discussions of the data with many experimenters, including P.H. Fowler, M. Israel and L. Koch, who contributed unpublished results from their experiments. I appreciate the use of unpublished calculations provided by S. Margolis, J.F. Ormes, R.J. Protheroe, R. Silberberg, C.J. Waddington, and M.E .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.
Group:Space Radiation Laboratory
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NASANGR 05-001-160
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Space Radiation Laboratory1981-09
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ID Code:45139
Deposited By: Joy Painter
Deposited On:23 Apr 2014 17:01
Last Modified:22 Nov 2019 09:58

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