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Modern analytical models of electrons acceleration and propagation in solar flaresстатья
- Авторы: Gritsyk P.A., Somov B.V.
- Журнал: Physics Uspekhi
- Том: 66
- Номер: 5
- Год издания: 2023
- Издательство: Russian Academy of Sciences
- Местоположение издательства: Russian Federation
- Первая страница: 437
- Последняя страница: 459
- DOI: 10.3367/ufnr.2021.08.039048
- Аннотация: A review of the current state of the kinetic theory of acceleration and propagation of energetic (thermal and non-thermal) electrons during solar flares is presented. The classical models of a thick-target and their further development are considered in detail — models that take into account the effect of the reverse-current and the acceleration of electrons in collapsing magnetic traps. Analytical solutions of the corresponding kinetic equations are found. Based on these solutions, the characteristics of the bremsstrahlung X-ray emission generated by energetic electrons are calculated. The obtained results are compared with modern data of high-precision observations of flares. The degree of X-ray polarization is calculated, and the possibilities of measuring it in future space experiments are discussed.
- Добавил в систему: Грицык Павел Александрович