Exact Steady State Reconnection Solutions in Weakly Collisional Plasmas

Details Exact Steady State Reconnection Solutions in Weakly Collisional Plasmas Exact Steady State Reconnection Solutions in Weakly Collisional Plasmas

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...617.1353w&link_type=abstract

The Astrophysical Journal, Volume 617, Issue 2, pp. 1353-1360.

Astronomy and Astrophysics

Astronomy

6

Magnetohydrodynamics: Mhd, Plasmas

Scientific paper

We consider the problem of reconnection in weakly collisional plasmas in the strong guide field limit. In this regime the standard resistive Ohm's law is modified to include electron compressibility and electron inertia effects. Despite the increased complexity of the governing equations, we show that analytic steady state solutions, like those discovered by Craig and Henton for the purely resistive case, can be developed for this new system. The resulting solutions are somewhat richer than those of Craig and Henton, and there are various different regimes in parameter space to consider that exhibit multiple length scales, boundary layer effects, and other features. We also examine the dynamical behavior of these new solutions by solving the time-dependent problem numerically.

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