Physics
Scientific paper
Aug 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...239.1070m&link_type=abstract
Astrophysical Journal, Part 1, vol. 239, Aug. 1, 1980, p. 1070-1088.
Physics
45
Abundance, Energetic Particles, Solar Cosmic Rays, Solar Flares, Solar Physics, Helium Isotopes, Iron Isotopes, Particle Acceleration
Scientific paper
The abundances of the major elements over the range H-Fe in solar flare energetic particles near 1 MeV/nucleon were surveyed for a large number of flares during the period 1973-1977; observations were carried out by the IMP 8 spacecraft in interplanetary space. The survey considered two types of solar flare events: (1) large events from which the average boundaries were deduced, and (2) events which have significant abundance differences from average. In addition, two He-3-rich events with abundance features that are different from previous examples are reported: one case with no enhancements of heavy ions, and a second case in which, compared to O, the heavy-ion enhancements are confined to the charge range Si-Fe rather than the usual case in which all elements Ne-Fe are enriched.
Fisk Len A.
Gloeckler George
Hovestadt Dieter
Mason Glenn M.
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