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Published 1999 | Published
Book Section - Chapter Open

Correlated Elemental and Isotopic Variations in Solar Energetic Particles

Abstract

We consider whether the observed fractionation of Ne isotopes recently reported in solar energetic particle (SEP) events is due to the same charge-to-mass dependent fractionation processes that apparently cause SEP elemental composition variations. We find that the observed correlation of the 22Ne/20Ne and Na/Mg ratios in nine large SEP events is consistent with a common fractionation process if the charge states of these ions are characteristic of a source temperature of -1.5 to -4 million degrees.

Additional Information

© University of Utah. Provided by the NASA Astrophysics Data System. This work was supported by NASA at Caltech (under NAG5-6912), the Jet Propulsion Laboratory, and at the Goddard Space Flight Center.

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