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Scaling of the innerelectron diffusionregion incollisionlessmagnetic reconnection: научное издание Divin A.Lapenta G.Markidis S.2012 год

Scaling of the inner electron diffusion region in collisionless magnetic reconnection : научное издание
статья из журнала

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Библиографическое описание: Scaling of the inner electron diffusion region in collisionless magnetic reconnection : научное издание / A. Divin [et al.]. - Текст : непосредственный // Journal of Geophysical Research: Space Physics. - 2012. - Т. 117, № 6. - P. A06217. - ISSN 2169-9402.
Аннотация: The Sweet-Parker analysis of the inner electron diffusion region of collisionless magnetic reconnection is presented. The study includes charged particles motion near the X-line and an appropriate approximation of the off-diagonal term for the electron pressure tensor. The obtained scaling shows that the width of the inner electron diffusion region is equal to the electron inertial length, and that electrons are accelerated up to the electron Alfvén velocity in X-line direction. The estimated effective plasma conductivity is based on the electron gyrofrequency rather than the binary collision frequency, and gives the extreme (minimal) value of the plasma conductivity similar to Bohm diffusion. The scaling properties are verified by means of Particle-in-Cell simulations. An ad hoc parameter needs to be introduced to the scaling relations in order to better match the theory and simulations. © 2012. American Geophysical Union. All Rights Reserved.
Год издания: 2012
Авторы: Divin A. , Lapenta G. , Markidis S. , Semenov V.S. , Erkaev N.V. , Korovinskiy D.B. , Biernat H.K.
Источник: Journal of Geophysical Research: Space Physics
Выпуск: Т. 117, № 6
Номера страниц: 06217
Держатель оригинала документа: Centrum voor Plasma Astrofysica, Departement Wiskunde, Katholieke Universiteit Leuven, Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Institute of Physics, University of Graz, PDC Center for High Performance Computing, KTH, Polytechnical Institute, Siberian Federal University, Space Research Institute, Austrian Academy of Sciences, State University of St. Petersburg
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