Published August 25, 2008
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Elemental and isotopic fractionation in 3He-rich solar energetic particle events
Abstract
Using data from the Solar Isotope Spectrometer (SIS) on the Advanced Composition Explorer (ACE) mission, heavy ion composition measurements have been made in 26^3He-rich solar energetic particle (SEP) events that occurred between 1998 and 2004. Relative abundances of 13 elements from C through Ni have been investigated, as have the isotopic compositions of the elements Ne and Mg. We find a general tendency for the abundances to follow trends similar to those found in gradual SEP events, in which fractionation can be represented in the form of a power-law in Q/M. However several deviations from this pattern are noted that may provide useful diagnostics of the acceleration process occurring in solar flares.
Additional Information
© 2008 American Institute of Physics. This research was supported by NASA at the California Institute of Technology (grant NAG5-12929), the Jet Propulsion Laboratory, and the Goddard Space Flight Center.Attached Files
Published - WIEaipcp08.pdf
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WIEaipcp08.pdf
Additional details
Identifiers
- Eprint ID
- 14674
- Resolver ID
- CaltechAUTHORS:20090727-132850697
Funding
- NASA
- NAG5-12929
Dates
- Created
-
2009-08-07Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- Space Radiation Laboratory , Physics Department
- Series Name
- AIP Conference Proceedings
- Series Volume or Issue Number
- 1039
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 2008-30