Тип публикации: статья из журнала

Год издания: 2012

Идентификатор DOI: 10.1029/2011JA017464

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 electronПоказать полностьюdiffusion region is equal to the electron inertial length, and that electrons are accelerated up to the electron Alfven 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.

Журнал: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS

Выпуск журнала: Vol. 117

ISSN журнала: 21699380

Место издания: WASHINGTON

Издатель: AMER GEOPHYSICAL UNION

• Divin A. (Katholieke Univ Leuven, Dept Wiskunde, Ctr Plasma Astrofys, BE-3001 Louvain, Belgium)
• Lapenta G. (Katholieke Univ Leuven, Dept Wiskunde, Ctr Plasma Astrofys, BE-3001 Louvain, Belgium; KTH, PDC Ctr High Performance Comp, Stockholm, Sweden)
• Markidis S. (Katholieke Univ Leuven, Dept Wiskunde, Ctr Plasma Astrofys, BE-3001 Louvain, Belgium)
• Semenov V.S. (St Petersburg State Univ, St Petersburg, Russia)
• Erkaev N.V. (Russian Acad Sci, Inst Computat Modeling, Siberian Branch, Krasnoyarsk, Russia; Siberian Fed Univ, Polytech Inst, Krasnoyarsk, Russia)
• Korovinskiy D.B. (Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria)
• Biernat H.K. (Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria; Graz Univ, Inst Phys, Graz, Austria)

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