Other
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...391l.105t&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 391, no. 2, June 1, 1992, p. L105-L108.
Other
115
Cyclotron Resonance, Helium Isotopes, Hydrogen, Ion Cyclotron Radiation, Isotopic Enrichment, Solar Flares, Electron Acceleration, Heavy Ions, Particle Trajectories, Solar Corona
Scientific paper
A new model is presented for the production of He-3 and heavy ion enrichments in He-3-rich flares using a direct single-stage mechanism. In analogy with the production of electromagnetic hydrogen cyclotron waves in earth's aurora by electron beams, it is suggested that such waves should exist in the electron acceleration region of impulsive solar flares. Both analytic and test-particle models of the effect of such waves in a nonuniform magnetic field show that these waves can selectively accelerate He-3 and heavy ions to MeV energies in a single-stage process, in contrast to other models which require a two-stage mechanism.
Roth Ilan
Temerin Michael
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