Mewaldt, R. A. and Webber, W. R.
(1990)
Cosmic Ray Source Abundances Derived from High Energy Measurements of Fe-Group Nuclei.
In:
Proceedings of the 21st International Cosmic Ray Conference.
Vol.3.
University of Adelaide
, Northfield, South Australia, pp. 432-435.
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Abstract
We examine the cosmic ray source composition of elements from Ar to Ni (18≤ Z≤28) using
data from ~0.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.
| Item Type: | Book Section |
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| 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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| Group: | Space Radiation Laboratory |
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| Funders: | | Funding Agency | Grant Number |
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| NASA | NAG8-678 | | NASA | NCR 05-002-160 |
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| Other Numbering System: | | Other Numbering System Name | Other Numbering System ID |
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| Space Radiation Laboratory | 1989-23 |
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| Record Number: | CaltechAUTHORS:20140714-162316365 |
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| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140714-162316365 |
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
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| ID Code: | 47199 |
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| Collection: | CaltechAUTHORS |
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| Deposited By: |
Deborah Miles
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| Deposited On: | 15 Jul 2014 16:15 |
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| Last Modified: | 22 Nov 2019 09:58 |
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