The Efefcts of Electric Field Induced by Beam Electrons on Hard X-Ray and Microwave Emission and Particle Number Problem in Flares

Details The Efefcts of Electric Field Induced by Beam Electrons on Hard X-Ray and Microwave Emission and Particle Number Problem in Flares The Efefcts of Electric Field Induced by Beam Electrons on Hard X-Ray and Microwave Emission and Particle Number Problem in Flares

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh33a1825z&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SH33A-1825

Physics

Plasma Physics

[7514] Solar Physics, Astrophysics, And Astronomy / Energetic Particles, [7519] Solar Physics, Astrophysics, And Astronomy / Flares, [7554] Solar Physics, Astrophysics, And Astronomy / X-Rays, Gamma Rays, And Neutrinos, [7859] Space Plasma Physics / Transport Processes

Scientific paper

In this paper Rutherford scattering of electrons beams on the ambient particles is considered in a presence of electric field induced by an electron beam precipitating into a flaring atmosphere. The outcome is compared with those of beam scattering in pure Coulomb collisions and in a presence of magnetic field convergence. Then macroscopic effects of electron distributions are investigated in Fokker-Planck approach and their hard H-ray and microwave emission, directivity and polarisation are investigated for the models including each of the above effects and their combinations. The conditions for a formation of the closed electric circuit from precipitating and returning beam electrons are considered and their implications on a number of emitting electrons in solar flares and their likely recycling are discussed.

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