Published November 20, 1993
| Published
Journal Article
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Coronal Abundances of Neon and Magnesium Isotopes from Solar Energetic Particles
Chicago
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Abstract
The relative abundances of 22 to 70 Me V nucleon^(-l) Ne and Mg isotopes from two large flare-associated solar energetic particle (SEP) events in 1992 October and November, are determined from data taken by the Mass Spectrometer Telescope on the polar-orbiting SAMPEX satellite. After converting the measured abundances to coronal values, the average ^(22)Ne/^(20)Ne ratio is 0.076 ± 0.008, consistent with the solar wind value of 0.073 but significantly less than that of previous SEP measurements, in which the abundance of ^(22)Ne was substantially enhanced. The average ^(26)Mg/^(24)Mg ratio is 0.152 ± 0.012, consistent with both previous SEP and other solar system measurements.
Additional Information
© American Astronomical Society. Provided by the NASA Astrophysics Data System. Received 1993 July 14; accepted 1993 September 1. This work was supported by NASA under contract NAS 5-30704 and grant NAGW-1919.Attached Files
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Additional details
- Eprint ID
- 45804
- Resolver ID
- CaltechAUTHORS:20140516-110810887
- NASA
- NAS 5-30704
- NASA
- NAGW-1919
- Created
-
2014-05-19Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1993-28