3D Magnetic Reconnection in Magnetopause-like Configurations

Details 3D Magnetic Reconnection in Magnetopause-like Configurations 3D Magnetic Reconnection in Magnetopause-like Configurations

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm41b0803r&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM41B-0803

Physics

2724 Magnetopause, Cusp, And Boundary Layers, 7835 Magnetic Reconnection, 7843 Numerical Simulation Studies

Scientific paper

We present the results of 2D and 3D full-particle and two-fluid simulations of reconnection in systems with strong ambient gradients in the plasma profiles across the reconnection layer, such as those typical of the Earth's magnetopause or laboratory fusion experiments. The simulations show the reconnection rate in such systems can be dramatically reduced by diamagnetic effects in both the linear and nonlinear phases. Three-dimensional simulations of reconnection have been carried out to explore the impact of secondary modes (eg the lower-hybrid drift instability) and associated fine scale turbulence on the reconnection process, which are excited by the spontaneous steepening of the plasma profiles in the deep nonlinear phase. These simulations allow us to assess self-consistently the issue of the anomalous transport processes (eg anomalous resistivity) arising from such modes.

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