Abstract
The behaviour of the accelerated electrons escaping from a high-temperature source of primary energy in a solar flare is investigated. The direct current of fast electrons is supposed to be balanced by the reverse current of thermal electrons in the ambient colder plasma inside flare loops. The self-consistent kinetic problem is formulated; and the reverse-current electric field and the fast electron distribution function are found from its solution. The X-ray bremsstrahlung polarization is then calculated from the distribution function. The difference of results from those in the case of thermal runaway electrons (Diakonov and Somov, 1988) is discussed. The solutions with and without account of the affect of a reverse-current electric field are also compared.
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References
Brown, J. C.: 1971, Solar Phys. 18, 489.
Brown, J. C. and Hayward, J.: 1982, Solar Phys. 80, 129.
Brown, J. C., Melrose, D. B., and Spicer, D. S.: 1979, Astrophys. J. 228, 592.
Diakonov, S. V. and Somov, B. V.: 1988a, Solar Phys. 116, 119.
Diakonov, S. V. and Somov, B. V.: 1988b, Problems of Solar Flare Physics, Nauka, Moscow, p. 90 (in Russian).
Elwert, G. and Haug, E.: 1970, Solar Phys. 15, 234.
Emslie, A. G.: 1980, Astrophys. J. 235, 1055.
Emslie, A. G.: 1985, Solar Phys. 98, 281.
Gopasyuk, S. I.: 1990, Adv. Space Res. 10(9), 151.
Hamilton, R. J. and Petrosian, V.: 1987, Astrophys. J. 321, 721.
Hoyng, P., Brown, J. C., and van Beek, H. F.: 1976, Solar Phys. 48, 197.
Kel'ner, S. R. and Skrynnikov, Y. L.: 1985, Soviet Astron. - AJ 29, 445.
Knight, J. W. and Sturrock, P. A.: 1977, Astrophys. J. 218, 306.
Landau, L. D.: 1937, Zh. Experim. Teor. Fiz. 7, 203 (in Russian).
Ljepojevic, N. N. and McNeice, P.: 1988, Solar Phys. 117, 123.
Longmire, C. L.: 1963, Elementary Plasma Physics, Interscience Publ., New York.
Lu, E. T. and Petrosian, V.: 1989, Astrophys. J. 338, 1122.
Nocera, L., Skrynnikov, Y. L., and Somov, B. V.: 1985, Solar Phys. 97, 81.
Sermulansh, V. A. and Somov, B. V.: 1982, Proc. XII Leningrad Seminar on Cosmic Physics, Nuclear Phys. Inst., Leningrad, p. 90 (in Russian).
Somov, B. V.: 1982, Proc. XII Leningrad Seminar on Cosmic Physics, Nuclear Phys. Inst., Leningrad, p. 72 (in Russian).
Somov, B. V.: 1986, Astron. Astrophys. 163, 210.
Somov, B. V. and Syrovatskii, S. I.: 1976, Soviet Phys. Usp. 19, 813.
Somov, B. V., Spektor, A. R., and Syrovatskii, S. I.: 1977, Bulletin Acad. Sci. USSR, Phys. Series 41, No. 2, 32.
Syrovatskii, S. I. and Shmeleva, O. P.: 1972, Soviet Astron. - AJ 16, 273.
Van den Oord, G. H. J.: 1990, Astron. Astrophys. (in press).
Vlahos, L. and Papadopoulos, K.: 1979, Astrophys. J. 233, 717.
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Litvinenko, Y.E., Somov, B.V. Nonthermal electrons in the thick-target reverse-current model for hard X-ray bremsstrahlung. Sol Phys 131, 319–336 (1991). https://doi.org/10.1007/BF00151641
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DOI: https://doi.org/10.1007/BF00151641