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Uspekhi Fizicheskikh Nauk, 2023, Volume 193, Number 5, Pages 465–490
DOI: https://doi.org/10.3367/UFNr.2021.08.039048 (Mi ufn7647) 		 
This article is cited in 2 scientific papers (total in 2 papers)

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Modern analytic models of acceleration and propagation of electrons in solar flares

P. A. Gritsyk, B. V. Somov

Lomonosov Moscow State University, Sternberg Astronomical Institute
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DOI: https://doi.org/10.3367/UFNr.2021.08.039048
Abstract: We review the current state of the kinetic theory of acceleration and propagation of energetic (thermal and nonthermal) electrons during solar flares. The classical models of a thick target, together with their extension to models that take the reverse current effect and the acceleration of electrons in collapsing magnetic traps into account, are discussed in detail. Analytic solutions of the corresponding kinetic equations are found and used to calculate the characteristics of the hard X-ray bremsstrahlung generated by energetic electrons. The results obtained are compared with modern high-precision data from satellite observations of solar flares. The radiation polarization degree is calculated and the prospects for its measurement in future space experiments are discussed.
Received: July 28, 2021
Revised: August 20, 2021
Accepted: August 27, 2021
English version:
Physics–Uspekhi, 2023, Volume 66, Issue 5, Pages 437–459
DOI: https://doi.org/10.3367/UFNe.2021.08.039048
Bibliographic databases:
Document Type: Article
PACS: 96.60.-j, 96.60.Iv, 96.60.qe, 96.60.Tf
Language: Russian
Citation: P. A. Gritsyk, B. V. Somov, “Modern analytic models of acceleration and propagation of electrons in solar flares”, UFN, 193:5 (2023), 465–490; Phys. Usp., 66:5 (2023), 437–459
Citation in format AMSBIB
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    • This publication is cited in the following 2 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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