Abstract
We investigate the particle acceleration in a magnetic trap with converging mirrors, which is a constituent part of the magnetic reconnection mechanism in solar flares. We take into account the effect of Coulomb collisions on the formation of the accelerated-electron distribution function. The solution of the kinetic equation shows that the Coulomb scattering of anisotropic accelerated electrons leads to their isotropization. As a result, the fraction of trapped particles increases and the acceleration efficiency significantly rises.
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Translated from Pis’ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Zhurnal, Vol. 29, No. 6, 2003, pp. 465–472.
Original Russian Text Copyright © 2003 by Kovalev, Somov.
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Kovalev, V.A., Somov, B.V. The role of collisions in the particle acceleration in solar-flare magnetic traps. Astron. Lett. 29, 409–415 (2003). https://doi.org/10.1134/1.1579790
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DOI: https://doi.org/10.1134/1.1579790