Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm43c..01b&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM43C-01
Physics
7831 Laboratory Studies And Experimental Techniques, 7835 Magnetic Reconnection (2723, 7526)
Scientific paper
Several new experimental results are reported from plasma merging studies at the Swarthmore Spheromak Experiment (SSX) with relevance to collisionless three dimensional magnetic reconnection in laboratory and space plasmas. First, recent high-resolution velocity measurements of impurity ions using ion Doppler spectroscopy (IDS) show bi-directional outflow jets at 40~km/s (nearly the Alfvén speed). High flow speeds are corroborated using an in situ Mach probe. Second, ion heating to nearly 106~K is observed after reconnection events in a low density kinetic regime. Transient electron heating is inferred from bursts on a 4- channel soft x-ray array. Third, the out-of-plane magnetic field in a reconnection volume shows a quadrupolar structure at the ion inertial scale (c/ωpi). Time resolved vector magnetic field measurements on a 3D lattice (B(r, t)) enables this measurement. Each of these measurements will be related to and compared with similar observations in a solar or space context.
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