Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224l..87m&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 224, Sept. 1, 1978, p. L87-L91.
Astronomy and Astrophysics
Astrophysics
12
Abundance, Energetic Particles, Interplanetary Medium, Nucleons, Solar Corpuscular Radiation, Solar Flares, Solar Wind, Helium, Imp, Interplanetary Magnetic Fields, Solar Rotation
Scientific paper
The relative abundances of 1.5-23 MeV per nucleon ions in corotating nucleon streams are compared with ion abundances in particle events associated with solar flares and with solar and solar wind abundances. He/O and C/O ratios are found to be a factor of the order 2-3 greater in corotating streams than in flare-associated events. The distribution of H/He ratios in corotating streams is found to be much narrower and of lower average value than in flare-associated events. H/He in corotating energetic particle streams compares favorably in both lack of variability and numerical value with H/He in high-speed solar wind plasma streams. The lack of variability suggests that the source population for the corotating energetic particles is the solar wind, a suggestion consistent with acceleration of the corotating particles in interplanetary space.
McDonald Frank B.
McGuire Robert. E.
von Rosenvinge Tycho T.
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