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Abundances of 'Secondary' Elements Among the Ultraheavy Cosmic Rays - Results from HEAO-3

Klarmann, J. and Binns, W. R. and Israel, M. H. and Margolis, S. H. and Garrard, T. L. and Stone, E. C. and Brewster, N. R. and Fixsen, D. J. and Waddington, C. J. (1983) Abundances of 'Secondary' Elements Among the Ultraheavy Cosmic Rays - Results from HEAO-3. In: 18th International Cosmic Ray Conference, Bangalore, India, August 22 to September 3, 1983. Vol.9. Tata Institute of Fundamental Research , Bombay, India, pp. 279-282.

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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.

Item Type:Book Section
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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: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.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASANGR 05-002-160
NASANGR 24-005-050
NASANGR 26-008-001
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Space Radiation Laboratory1983-22
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ID Code:45173
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Deposited On:23 Apr 2014 23:56
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