Email this article Flare Energy Release and Electron Acceleration to Relativistic Energies by Quasi-Stationary Electric Fields in the Lower Atmosphere of the Sun
- Authors: Tsap Y.T.1,2, Stepanov A.V.2,3, Kopylova Y.G.2
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Affiliations:
- Crimean Astrophysical Observatory, Russian Academy of Sciences
- Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences
- Ioffe Institute, Russian Academy of Sciences
- Issue: Vol 59, No 7 (2019)
- Pages: 789-792
- Section: Article
- URL: https://journals.rcsi.science/0016-7932/article/view/157785
- DOI: https://doi.org/10.1134/S0016793219070259
- ID: 157785
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Abstract
The characteristics of electron acceleration to relativistic energies by sub-Dreicer quasi-stationary electric fields under the conditions of the lower atmosphere of the Sun are considered. The proposed model makes it possible to explain the spatial location of hard X-ray, optical, and gyrosynchrotron sources in the chromosphere/photosphere observed during limb solar flares. Possible mechanisms of electric field generation in the lower atmosphere are discussed.
About the authors
Yu. T. Tsap
Crimean Astrophysical Observatory, Russian Academy of Sciences; Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences
Author for correspondence.
Email: yur_crao@mail.ru
Russian Federation, Nauchnyi, 298409; St. Petersburg, 196140
A. V. Stepanov
Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences; Ioffe Institute, Russian Academy of Sciences
Author for correspondence.
Email: stepanov@gao.spb.ru
Russian Federation, St. Petersburg, 196140; St. Petersburg, 194021
Yu. G. Kopylova
Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences
Author for correspondence.
Email: yul@gao.spb.ru
Russian Federation, St. Petersburg, 196140
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