Directionality of solar flare hard X rays - Venera 13 observations

Details Directionality of solar flare hard X rays - Venera 13 observations Directionality of solar flare hard X rays - Venera 13 observations

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11..763b&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 11, Oct. 1985, p. 763-768) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, Sept.-Oc

Astronomy and Astrophysics

Astronomy

Directivity, Solar Flares, Solar X-Rays, Venera Satellites, X Ray Spectra, Solar Limb

Scientific paper

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.

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