Directionality of solar flare hard X rays - Venera 13 observations
Journal Article
·
· Sov. Astron. Lett. (Engl. Transl.); (United States)
OSTI ID:5266001
An analysis of 79 flares detected by the Venera 13 SIGNE 2 MS gamma-ray telescope is performed to indirectly search for directional effects in the hard (50-300 keV) X rays of solar flares. X-ray spectra were reconstructed assuming a power law fit. From the distribution of X-ray flares with respect to angle of observation and spectral index it is found that the primary-plus-albedo radiation is directive, and that the observed flare spectrum hardens toward the solar limb. 21 references.
- Research Organization:
- Moskovskii Inzhenerno-Fizicheskii Institut, Moscow, USSR; Institut Kosmicheskikh Issledovanii, Moscow, USSR; Centre d'Etude Spatiale des Rayonnements, Toulouse, France
- OSTI ID:
- 5266001
- Journal Information:
- Sov. Astron. Lett. (Engl. Transl.); (United States), Journal Name: Sov. Astron. Lett. (Engl. Transl.); (United States) Vol. 11; ISSN SALED
- Country of Publication:
- United States
- Language:
- English
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