Stone, E. C.
(1989)
Solar Abundances as Derived from Solar Energetic Particles.
In:
Cosmic abundances of matter.
AIP Conference Proceedings.
No.183.
American Institute of Physics
, Melville, NY, pp. 72-90.
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Abstract
Recent studies have shown that there are well defined average abundances of heavy (Z≳2) solar energetic particles (SEPs), with variations in the acceleration and propagation producing a systematic flare‐to‐flare fractionation that depends on the charge per unit mass of the ion. Correcting the average SEP abundances for the fractionation yields SEP‐derived coronal abundances for 20 elements. Higher resolution SEP studies have also provided isotopic abundances for 5 elements. SEP‐derived abundances indicate that elements with high first ionization potentials (≳10 eV) are depleted in the corona relative to the photosphere and provide new information on the solar abundance of C and ^(22)Ne. Future SEP observations offer the prospect of a significant reduction of the uncertainties in solar elemental and isotopic abundances.
| Item Type: | Book Section |
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| Contact Email Address: | dmiles@caltech.edu |
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| Additional Information: | © 1989 American Institute of Physics.
Published online 01 March 1989.
I appreciate T. L. Garrard's help in preparing this manuscript. This
work was supported in part by NASA under contract NAS7-918 and grants
NGR 05-002-160 and NAG5-722.
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| Group: | Space Radiation Laboratory |
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| Funders: | | Funding Agency | Grant Number |
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| NASA | NAS7-918 | | NASA | NGR 05-002-160 | | NASA | NAG5-722 |
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| Other Numbering System: | | Other Numbering System Name | Other Numbering System ID |
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| Space Radiation Laboratory | 1988-10 |
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| Series Name: | AIP Conference Proceedings |
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| Issue or Number: | 183 |
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| DOI: | 10.1063/1.37986 |
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| Record Number: | CaltechAUTHORS:20140501-105012914 |
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| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140501-105012914 |
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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: | 45409 |
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| Collection: | CaltechAUTHORS |
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| Deposited By: |
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| Deposited On: | 01 May 2014 22:23 |
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| Last Modified: | 10 Nov 2021 17:03 |
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