Nonstationary Petchek reconnection. I - Convective zone. II - Diffusion region

Details Nonstationary Petchek reconnection. I - Convective zone. II - Diffusion region Nonstationary Petchek reconnection. I - Convective zone. II - Diffusion region

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ge%26ae..31..233s&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 31, Mar.-Apr. 1991, p. 233-246. In Russian.

Computer Science

Current Sheets, Magnetic Field Reconnection, Magnetohydrodynamic Waves, Plasma Acceleration, Shock Waves, Plasma Heating, Plasma-Electromagnetic Interaction, Wave Fronts

Scientific paper

Nonstationary magnetic reconnection is investigated in the framework of the Petchek approach. It is shown that, under the conditions examined, the plasma is accelerated by shock waves to Alfven velocity, and the accelerated plasma and the reconnected magnetic flux are transported along the current sheet in compact formations, i.e., FR regions. A solution to the magnetic-reconnection problem in the diffusion region is then obtained, and is asymptotically matched with that in the convective zone. As a result, a Petchek condition is obtained that relates the behavior of the plasma conductivity in the vicinity of the X-line to the global characteristics of the reconnection.

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