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Parameters of the intense X-ray and gamma-ray radiation from the solar flare of May 20, 2002; as observed from the Coronas-F spacecraftстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Bogomolov A.V., Ignat'ev A.P., Kudela K., Kuznetsov S.N., Logachev Y.I., Morozov O.V., Myagkova I.N., Oparin S.N., Pertsov A.A., Svertilov S.I., Yushkov B.Y.
- Журнал: Astronomy Letters
- Том: 29
- Номер: 3
- Год издания: 2003
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 199
- Последняя страница: 204
- DOI: 10.1134/1.1558160
- Аннотация: We consider temporal, spectral, and polarization parameters of the hard X-ray and gamma-ray radiation observed during the solar flare of May 20, 2002, in the course of experiments with the SONG and SPR-N instruments onboard the Coronas-F spacecraft. This flare is one of the most intense gamma-ray events among all of the bursts of solar hard electromagnetic radiation detected since the beginning of the Coronas-F operation (since July 31, 2001) and one of the few gamma-ray events observed during solar cycle 23. A simultaneous analysis of the Coronas-F and GOES data on solar thermal X-ray radiation suggests that, apart from heating due to currents of matter in the the flare region, impulsive heating due to the injection of energetic electrons took place during the near-limb flare S21E65 of May 20, 2002. These electrons produced intense hard X-ray and gamma-ray radiation. The spectrum of this radiation extends up to energies greater than or equal to7 MeV Intense gamma-ray lines are virtually unobservable against the background of the nonthermal continuum. The polarization of the hard X-ray (20-100 keV) radiation was estimated to be less than or equal to15-20%. No significant increase in the flux of energetic protons from the flare under consideration was found. At the same time, according to ACE data, the fluxes of energetic electrons in interplanetary space increased shortly (similar to25 min) after the flare. (C) 2003 MAIK "Nauka/Interperiodica".
- Добавил в систему: Свертилов Сергей Игоревич