Other
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979azh....56..574k&link_type=abstract
Astronomicheskii Zhurnal, vol. 56, May-June 1979, p. 574-583. In Russian.
Other
1
Particle Acceleration, Solar Cosmic Rays, Solar Flares, Charged Particles, Composition (Property), Energy Dissipation, Particle Collisions, Temperature Dependence
Scientific paper
The charge and mass selectivity of the four most probable solar-flare particle-acceleration mechanisms (Fermi, betatron, electric-field, and Langmuir-wave) is analyzed, along with the effect of collisions on the particle charge spectrum and composition. It is shown that the composition of solar cosmic rays can be explained qualitatively in terms of two mechanisms operating in different parts of the acceleration region; one of these mechanisms is characterized by a very high intensity and acts directly during the flash phase of a flare, while the other is significantly slower and acts before the flash phase. The latter mechanism also leads to heavy-particle accumulation in the low-energy range. The effect of particle collisions with photons and the role of the proton loss maximum are investigated, and conditions under which accelerated particles attain charge equilibrium are considered.
Filippov B. P.
Korchak A. A.
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