Published 1985
| Published
Book Section - Chapter
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Solar Coronal and Photospheric Abundances from Solar Energetic Particle Measurements
- Creators
- Breneman, H.
-
Stone, E. C.
- Other:
- Jones, F. C.
Chicago
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Abstract
Solar energetic particle (SEP) elemental abundance data from the Cosmic Ray Subsystem (CRS) aboard the Voyager 1 and 2 spacecraft (Breneman and Stone 1985} are used to derive unfractionated coronal and photospheric abundances for elements with 3 < Z < 30. We find that the ionic charge-to-mass ratio (Q/M) is the principal organizing parameter tor the fractionation of SEPs by acceleration and propagation processes and for fl.are-to-fl.are variability, making possible a single parameter Q/M-dependent correction to the average SEP abundances to obtain unfractionated coronal abundances. A further correction based on first ionization potential allows the determination of unfractionated photospheric abundances.
Additional Information
© NASA/STI. Provided by the NASA Astrophysics Data-System. This work has been supported in part by the National Aeronautics and Space Administration under contract NAS7-916 and grant NGR 05-002-160.Attached Files
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Additional details
- Eprint ID
- 45453
- Resolver ID
- CaltechAUTHORS:20140501-202056002
- NASA
- NAS7-916
- NASA
- NGR 05-002-160
- Created
-
2014-05-02Created from EPrint's datestamp field
- Updated
-
2020-02-20Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1985-15