Spatial brightness distribution of hard X-Ray emission along flare loops |
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Authors: | V F Melnikov Yu E Charikov I V Kudryavtsev |
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Institution: | 1. Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences, St. Petersburg, 196140, Russia 2. Ioffe Physicotechnical Institute, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia
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Abstract: | The work is devoted to the simulation of recently discovered hard X-ray and gamma radiation sources localized near the top of solar flare loops. The calculations were performed in the context of a model of a flare magnetic loop inhomogeneous with respect to the magnetic field. Two cases of injection were considered: isotropic and anisotropic along the loop axis. The distributions of electrons along the loop are found by solving the nonstationary relativistic kinetic equation in the Fokker-Planck form. Based on the calculated electron distribution functions, the spatial brightness distribution of hard X-ray and gamma radiation has been calculated. Radiation characteristics are compared for different sets of injection parameters. |
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