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Elemental Abundances of Ultraheavy Cosmic Rays

Binns, W. R. and Fixsen, D. J. and Garrard, T. L. and Israel, M. H. and Klarmann, J. and Stone, E. C. and Waddington, C. J. (1984) Elemental Abundances of Ultraheavy Cosmic Rays. Advances in Space Research, 4 (2-3). pp. 25-34. ISSN 0273-1177. doi:10.1016/0273-1177(84)90289-8.

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The elemental composition of the cosmic-ray source is different from that which has been generally taken as the composition of the solar system. No general enrichment of products of either r-process or s-process nucleosynthesis accounts for the differences over the entire range of ultraheavy (Z > 30) elements; specific determination of nucleosynthetic contributions to the differences depends upon an understanding of the nature of any acceleration fractionation. Comparison between the cosmic-ray source abundances and the abundances of C1 and C2 chondritic meteorites suggests the possibility that differences between the cosmic-ray source and the “standard (C1) solar system” may not be due to acceleration fractionation of the cosmic rays, but may be due instead to a fractionation of the C1 abundances with respect to the interstellar abundances.

Item Type:Article
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URLURL TypeDescription
Binns, W. R.0000-0001-6110-3407
Israel, M. H.0000-0002-8104-208X
Stone, E. C.0000-0002-2010-5462
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Additional Information:Copyright © 1984 Elsevier. This work was supported in part by NASA under contracts NAS8-27976, 77, 78 and grants NGR 005-002-160, 24-005-050, 26-008-001.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASANGR 05-002-160
NASANGR 24-005-050
NASANGR 26-008-001
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1984-02
Issue or Number:2-3
Record Number:CaltechAUTHORS:20140429-095757981
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45274
Deposited By: SWORD User
Deposited On:30 Apr 2014 23:22
Last Modified:10 Nov 2021 17:02

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