Steady-state properties of driven magnetic reconnection in 2D electron magnetohydrodynamics

We formulate a rigorous nonlinear analytical model that describes the dynamics of the diffusion (reconnection) region in driven systems in the context of electron magnetohydrodynamics (EMHD). A steady-state analysis yields allowed geometric configurations and associated reconnection rates. In additi...

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Bibliographic Details
Published in:Physical review letters 2007-12, Vol.99 (23), p.235001-235001, Article 235001
Main Authors: Chacón, L, Simakov, Andrei N, Zocco, A
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRONS
MAGNETIC RECONNECTION
MAGNETOHYDRODYNAMICS
NONLINEAR PROBLEMS
PLASMA
PLASMA SIMULATION
STEADY-STATE CONDITIONS
TWO-DIMENSIONAL CALCULATIONS
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Summary:We formulate a rigorous nonlinear analytical model that describes the dynamics of the diffusion (reconnection) region in driven systems in the context of electron magnetohydrodynamics (EMHD). A steady-state analysis yields allowed geometric configurations and associated reconnection rates. In addition to the well-known open X-point geometry, elongated configurations are found possible. The model predictions have been validated numerically with two-dimensional EMHD nonlinear simulations, and are in excellent agreement with previously published work.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.99.235001