Published 1990 | Version Published
Book Section - Chapter Open

Temporal Variations of Anomalous Cosmic Rays and Further Evidence for Anomalous Cosmic Ray Hydrogen

Abstract

We examine the cosmic ray source composition of elements from Ar to Ni (18≤Z≤28) using data from ~.l to ~200 GeV /nuc and a cosmic ray propagation code that includes improved fragmentation cross-sections. By fitting available satellite data over more than three decades in energy /nuc, including recent HEA0-3 data, we obtain improved source abundances for Ar, Ca, Cr, Mn, and Ni, and compare these with recent determinations of the solar composition. We find no evidence for an energy-dependent source composition below ~20 GeV/nuc, but the data at higher energies deserve further study.

Additional Information

© Organizing Committee of the 21st Int. Cosmic Ray Conference. Provided by the NASA Astrophysics Data System. This work was supported by NASA grants NAG8-678 and NCR 05-002-160. We appreciate discussions of HEAO data with W. R. Binns, T. L. Garrard, J. Klarmann, and C. J. Waddington, and help with the propagation code from B. T. Hayes.

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Identifiers

Eprint ID
47202
Resolver ID
CaltechAUTHORS:20140714-162918647

Funding

NASA
NAG8-678
NASA
NGR-05-002-160

Dates

Created
2014-07-27
Created from EPrint's datestamp field
Updated
2019-11-22
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Caltech Custom Metadata

Caltech groups
Space Radiation Laboratory
Other Numbering System Name
Space Radiation Laboratory
Other Numbering System Identifier
1989-24