Backscatter of hard X-rays in the solar atmosphere

Details Backscatter of hard X-rays in the solar atmosphere Backscatter of hard X-rays in the solar atmosphere

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977stin...7718984b&link_type=abstract

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Computer Science

Backscattering, Reflectance, Solar Atmosphere, Solar X-Rays, X Ray Sources, Bremsstrahlung, Brightness, High Resolution, Monte Carlo Method, Photosphere, Solar Limb

Scientific paper

The solar photosphere backscatters a substantial fraction of the hard X rays from solar flares incident upon it. This reflection was studied using a Monte Carlo simulation which takes into account Compton scattering and photo-electric absorption. Both isotropic and anisotropic X ray sources are considered. The bremsstrahlung from an anisotropic distribution of electrons are evaluated. By taking the reflection into account, the inconsistency is removed between recent observational data regarding the center-to-limb variation of solar X ray emission and the predictions of models in which accelerated electrons are moving down toward the photosphere.

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