Published February 15, 1989 | Version Published
Journal Article Open

Isotope Abundances of Solar Coronal Material Derived from Solar Energetic Particle Measurements

Abstract

Coronal isotopic abundances for the elements He, C, N, O, Ne, and Mg are derived from previously published measurements of the isotopic composition of solar energetic particles by first measuring, and then correcting for, the charge-to-mass-dependent fractionation due to solar flare acceleration and propagation processes. The resulting coronal composition generally agrees with that of other samples of solar system material, but the previously noted difference between the solar flare and solar wind ^(22)Ne/^(20)Ne ratios remains unresolved.

Additional Information

Copyright 1989 American Astronomical Society. Received 1988 July 11; accepted 1988 August 8. We are grateful to R. E. Vogt and J. D. Spalding for their contributions to the HIST program. This works was supported in part by the National Aeronautics and Space Administration under grants NAG 5-722 and NGR 05-001-160.

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Eprint ID
45406
Resolver ID
CaltechAUTHORS:20140501-103724608

Funding

NASA
NAG5-722
NASA
NGR 05-002-160

Dates

Created
2014-05-02
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Updated
2021-11-10
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Space Radiation Laboratory
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Space Radiation Laboratory
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1988-06