Computer Science
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992kfnt....8q..38z&link_type=abstract
Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 8, no. 3, May-June 1992, p. 38-43. In Russian.
Computer Science
Beam Interactions, Chromosphere, Electron Beams, Particle Collisions, Plasma-Particle Interactions, Solar Wind, Hydrogen Atoms, Particle Flux Density, Solar Corona
Scientific paper
The energy spectrum for a stationary electron beam injected from the solar corona into the chromosphere is obtained, as well as density variations with the depth of penetration into the chromospheric plasma of an arbitrary degree of ionization. The density of electrons in the beam is shown to decrease with decreasing degree of ionization more slowly than under the complete ionization of the plasma, as a result of which the rates of nonthermal excitation and ionization of hydrogen atoms increase. The stability of the reverse current in the chromospheric layers is estimated on the basis of the initial energy flux of the beam at the upper boundary. For hard beams (gamma = 3) the reverse current in the lower chromosphere is stable up to flux values of 10,000 J/sq cm s, and for beams with a softer spectrum (g = 5) the current stability is impaired in the case of fluxes greater than 4000 J/sq cm s.
Kobylinskii V. A.
Zharkova Valentin
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