Directional effect of hard X-radiation of solar flares as detected by SNEG-2MZ instruments

Details Directional effect of hard X-radiation of solar flares as detected by SNEG-2MZ instruments Directional effect of hard X-radiation of solar flares as detected by SNEG-2MZ instruments

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989rpsct...1....7b&link_type=abstract

In its JPRS Report: Science and Technology. USSR: Space p 7 (SEE N89-29354 24-12) Transl. into ENGLISH from Astronomicheskiy Zhu

Astronomy and Astrophysics

Astronomy

Electron Acceleration, Solar Flares, Solar X-Rays, X Ray Spectra, Angular Distribution, Photosphere, Radiation Distribution

Scientific paper

A systematic softening of the X-ray spectrum toward the center of the solar disk in the energy region above 50 keV is observed. The radiation spectra observed experimentally are compared with those calculated in terms of the thick target model taking into account the electron Coulomb scattering and the reflection of radiation from the photosphere. The comparison shows that the observed spectra softening toward the center of the solar disk is most likely to be due to the angular anisotropy of the accelerated electrons. The results obtained point to the acceleration of electrons with different angular distribution in different solar flares.

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