Effective conductivity of the current sheet in the magnetospheric tail

Details Effective conductivity of the current sheet in the magnetospheric tail Effective conductivity of the current sheet in the magnetospheric tail

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ge%26ae..31..587k&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 31, July-Aug. 1991, p. 587-590. In Russian.

Physics

Current Sheets, Geomagnetic Tail, Magnetosphere-Ionosphere Coupling, Plasma Conductivity, Plasma Layers, Plasma Turbulence, Electric Fields, Hall Effect, Magnetic Field Configurations

Scientific paper

The anomalous conductivity in the plasma sheet in the magnetotail is evaluated on the basis of turbulence measurements. It is shown that the Hall current generated by the morning-evening field, when it is polarized, generates a transverse electric field which, in the projection onto the ionosphere, is directed toward the equator. As a result, the sheet current that is directed from morning to evening is determined by the effective Cowling conductivity in the sheet, whose value (about 10 to the 6th/s) is about four orders of magnitude greater than the Pedersen turbulent conductivity.

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