Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.506..609f&link_type=abstract
In: Solar variability: from core to outer frontiers. The 10th European Solar Physics Meeting, 9 - 14 September 2002, Prague, Cze
Physics
2
Current Sheets, Magnetohydrodynamics, Solar Flares: Models
Scientific paper
Results are presented of laboratory experiments on the formation of current sheets in 3D magnetic configurations with topological singularities: null points and singular lines. We demonstrate that CS can be formed in 3D magnetic fields, both with an without isolated null points, specifically, in configurations with X-lines. The characteristic features of current sheets are governed by topological properties of a 3D configuration, and the sheet can form a twisted surface; its angular orientation is controlled by a local value of the transverse magnetic field gradient. The plasma density inside the current sheet decreases in the presence of the longitudinal magnetic field component, displaying the transition to the behavior of uncompressible plasma. Experimental data testify that the formation of current sheets in various 3D magnetic configurations produces a basis for magnetic reconnection phenomena and flare-type events.
Bogdanov Sergey Yu.
Frank Anna G.
Markov Vladimir S.
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