The directivity of hard X-ray radiation of solar flares detected by SNEG-2MZ

Details The directivity of hard X-ray radiation of solar flares detected by SNEG-2MZ The directivity of hard X-ray radiation of solar flares detected by SNEG-2MZ

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988azh....65..147b&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 65, Jan.-Feb. 1988, p. 147-156. In Russian.

Astronomy and Astrophysics

Astronomy

1

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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