Hall and Turbulence Effects on Magnetic Reconnection

Details Hall and Turbulence Effects on Magnetic Reconnection Hall and Turbulence Effects on Magnetic Reconnection

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh31a1093s&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SH31A-1093

Physics

7827 Kinetic And Mhd Theory, 7835 Magnetic Reconnection, 7863 Turbulence

Scientific paper

We reexamine the influence of the Hall effect and the level of background MHD scale turbulence upon the reconnection rate of a large scale periodic sheet pinch in 2.5 dimensional compressible Hall MHD. The simulations indicate that the large scale reconnection rate is enhanced by both increasing Hall parameter and by increasing turbulence level. The reconnection rate is found to scale linearly with turbulence amplitude and as the 3/2 power of the Hall parameter (correlation scale/ion inertial scale). The effect is quantified for a range of parameters, thus helping to clarify and extend the related GEM challenge simulation study of reconnection rates.

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