Experiment to Model Magnetotail Reconnection With a Theta Pinch

Details Experiment to Model Magnetotail Reconnection With a Theta Pinch Experiment to Model Magnetotail Reconnection With a Theta Pinch

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsm23a0406m&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SM23A-0406

Physics

0654 Plasmas, 2723 Magnetic Reconnection (7526, 7835), 7831 Laboratory Studies And Experimental Techniques, 7835 Magnetic Reconnection (2723, 7526)

Scientific paper

Dimensionless parameters in the Earth's magnetotail are comparable to those in a collisionless theta-pinch experiment in the the Naval Research Laboratory's Space Plasma Simulation Chamber. An argon plasma with density of about 1010 cm-3 is created in a 200 Gauss DC magnetic field. A 60 Gauss, 17 s-period pulse generates an inward-propagating field-reversed wavefront. The magnetic energy raises the plasma density to order 1012 cm-3 and collisionless reconnection ensues. The plasma is measured on scale lengths below the ion skin depth and comparable to the ion Larmor radii. An array of magnetic probes monitors the field structure from the propagating wave. We present both single-shot and statistical data and compare these to Hall MHD and anomalous-resistivity models. Work Supported by ONR and NASA.

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