Resistivity and energy flow in a plasma undergoing magnetic-field-line reconnection

Details Resistivity and energy flow in a plasma undergoing magnetic-field-line reconnection Resistivity and energy flow in a plasma undergoing magnetic-field-line reconnection

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981phrvl..46..339w&link_type=abstract

Physical Review Letters, vol. 46, Feb. 2, 1981, p. 339-342.

Physics

16

Lines Of Force, Plasma Conductivity, Plasma Currents, Plasma-Electromagnetic Interaction, Space Plasmas, Current Density, Electron Energy, Energy Dissipation, Hall Effect, Magnetic Field Configurations, Magnetohydrodynamic Stability, Space Charge

Scientific paper

Detailed time- and space-resolved measurements of the electric fields and currents have been carried out in a laboratory plasma undergoing magnetic-field-line reconnection. The resistivity normalized to the classical value is found to be spatially inhomogeneous; it does not reach its maximum in regions of large currents. Investigation of the energy balance indicates that electron heating accounts for most of the electromagnetic energy loss. The plasma-current system associated with magnetic-field-line reconnection is shown to evolve in time self-consistently with an anomalously high resistivity, which in turn leads to energy dissipation via Joule heating.

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