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Solar Abundances as Derived from Solar Energetic Particles

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. https://resolver.caltech.edu/CaltechAUTHORS:20140501-105012914

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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
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.37986DOIArticle
http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.37986PublisherArticle
ORCID:
AuthorORCID
Stone, E. C.0000-0002-2010-5462
Contact Email Address:dmiles@caltech.edu
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.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANAS7-918
NASANGR 05-002-160
NASANAG5-722
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1988-10
Series Name:AIP Conference Proceedings
Issue or Number:183
Record Number:CaltechAUTHORS:20140501-105012914
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140501-105012914
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45409
Collection:CaltechAUTHORS
Deposited By: SWORD User
Deposited On:01 May 2014 22:23
Last Modified:20 Feb 2020 14:33

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