X-ray and gamma-ray emission from solar flares

A.L. Lysenko^†^a, D.D. Frederiks^‡^a, G.D. Fleishman^§^a, b, R.L. Aptekar^*^a, A.T. Altyntsev^#^c, S.V. Golenetskii^°^a, D.S. Svinkin^&^a, M.V. Ulanov^a, A.E. Tsvetkova^a, A.V. Ridnaia^a
^aIoffe Institute, ul. Polytekhnicheskaya 26, St. Petersburg, 194021, Russian Federation
^bNew Jersey Institute of Technology, Newark, New Jersey, USA
^cInstitute of Solar-Terrestrial Physics, Lermontova str. 125a, Irkutsk, 664033, Russian Federation

We present a brief review of the contemporary understanding of and topical problems in solar flare physics, which may be clarified by X-ray and gamma-ray astronomy methods. The review focuses on several issues, including the conditions and mechanisms of electron acceleration in solar flares, the flare energy distribution between thermal and nonthermal components, the gamma-ray emission from solar flares and its dynamics, and the spatial structure of X-ray and gamma-ray sources. Discussed in this context are the latest data obtained by the joint Russia—US experiment Konus-Wind, which marked the 25th anniversary of continuous operation in space in 2019.

Keywords: heliophysics, solar flares, X-ray and gamma-ray astronomy
PACS: 95.55.Ka, 96.60.−j, 96.60.qe (all)
DOI: 10.3367/UFNe.2019.06.038757
URL: https://ufn.ru/en/articles/2020/8/i/
Web of Science

000583209000009
Scopus

2-s2.0-85096288738
ADS NASA

2020PhyU...63..818L
Citation: Lysenko A L, Frederiks D D, Fleishman G D, Aptekar R L, Altyntsev A T, Golenetskii S V, Svinkin D S, Ulanov M V, Tsvetkova A E, Ridnaia A V "X-ray and gamma-ray emission from solar flares" Phys. Usp. 63 818–832 (2020)

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Received: 5th, June 2019, accepted: 5th, June 2019

Оригинал: Лысенко А Л, Фредерикс Д Д, Флейшман Г Д, Аптекарь Р Л, Алтынцев А Т, Голенецкий С В, Свинкин Д С, Уланов М В, Цветкова А Е, Ридная А В «Рентгеновское и гамма-излучение солнечных вспышек» УФН 190 878–894 (2020); DOI: 10.3367/UFNr.2019.06.038757