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New Measurements of Solar Particle Events Enriched in Heavy Ions

Cohen, C. M. S. and Christian, E. R. and Cummings, A. C. and Leske, R. A. and Mewaldt, R. A. and Slocum, P. L. and Stone, E. C. and von Rosenvinge, T. T. and Wiedenbeck, M. E. (1999) New Measurements of Solar Particle Events Enriched in Heavy Ions. In: Proceedings of the 26th International Cosmic Ray Conference. Vol.6. International Union of Pure and Applied Physics , pp. 244-247. http://resolver.caltech.edu/CaltechAUTHORS:20150211-145949528

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Abstract

The four most heavy-ion-rich of the nine largest solar energetic particle events detected by the Solar Isotope Spectrometer on the ACE, are the focus of this paper. We have used isotopic measurements of Ne to determine the degree of charge/mass fractionation and infer the charge states of C - Ni in these events. The results indicate a source temperature of ~ 4 x 10^6 K; this and the measured abundances suggest that these four events more similar to impulsive events than gradual. Although the ^3He/^4He ratios are not enhanced to the level typical of impulsive events, there are measurable enhancements over typical solar wind values in three of the events.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://adsabs.harvard.edu/abs/1999ICRC....6..244CADSArticle
ORCID:
AuthorORCID
Cohen, C. M. S.0000-0002-0978-8127
Additional Information:© University of Utah. Provided by the NASA Astrophysics Data System This work was supported by NASA at the California Institute of Technology (under grant NAG5-6912), the Jet Propulsion Laboratory, and the Goddard Space Flight Center.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANAG5-6912
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1999-14
Record Number:CaltechAUTHORS:20150211-145949528
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150211-145949528
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54745
Collection:CaltechAUTHORS
Deposited By: Deborah Miles
Deposited On:13 Feb 2015 15:21
Last Modified:13 Sep 2017 16:03

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