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Published 2003 | Published
Book Section - Chapter Open

Heavy Ion and Electron Release Times in Solar Particle Events

Mewaldt, R. A. ORCID icon
Cohen, C. M. S. ORCID icon
Haggerty, D. K. ORCID icon
Gold, R. E.
Krimigis, S. M. ORCID icon
Leske, R. A. ORCID icon
Ogliore, R. C.
Roelof, E. C. ORCID icon
Stone, E. C. ORCID icon
von Rosenvinge, T. T.
Wiedenbeck, M. E. ORCID icon
Others:
Kajita, Takaaki
Asaoka, Y.
Kawachi, A.
Matsubara, Y.
Sasaki, M.
An error occurred while generating the citation.

Abstract

Using data from the SIS and EPAM instruments on ACE we have measured the onset times of 6 - 88 MeV/nuc ions and 38 - 315 keV electrons in 11 solar energetic particle (SEP) events from 1997 through 2002. We find that heavy ions are generally released later than electrons, by as much as ∼50 minutes. There is an apparent correlation between the release times (and the inferred release distances) and the 3He/4He ratio.

Additional Information

Copyright Universal Academy Press Inc. Supported by NASA at Caltech (under grants NAG5- 6912 and NAG5-12929), APL, JPL, and GSFC.

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