Heavy ions in 3He enhanced solar energetic particle events

Details Heavy ions in 3He enhanced solar energetic particle events Heavy ions in 3He enhanced solar energetic particle events

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..528...99h&link_type=abstract

ACCELERATION AND TRANSPORT OF ENERGETIC PARTICLES OBSERVED IN THE HELIOSPHERE: ACE 2000 Symposium. AIP Conference Proceedings, V

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Neutrino, Muon, Pion, And Other Elementary Particles, Cosmic Rays

Scientific paper

Prior to the launch of ACE, 3He/4He ratios in 3He-rich solar energetic particle (SEP) events were typically reported at 10% or higher only from above a few MeV per nucleon because of limited instrument capabilities. However, with the new ULEIS instrument on ACE, we are able to explore the 3He/4He ratio below the 10% level and also at energy less than 1 MeV per nucleon. We have investigated a total of 45 3He-rich (3He/4He>0.01 at 0.23-0.45 MeV per nucleon) SEP events from November 1997 to May 1999. We found the event average 3He/4He and Fe/C ratios are clearly correlated. This correlation suggests that the 3He and Fe enrichments could be related and places further constraints on any 3He-enhancement models. .

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