The auroral arc as an electrical discharge between the ionosphere and magnetosphere

Details The auroral arc as an electrical discharge between the ionosphere and magnetosphere The auroral arc as an electrical discharge between the ionosphere and magnetosphere

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ge%26ae..23..595l&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 23, July-Aug. 1983, p. 595-599. In Russian.

Physics

Auroral Arcs, Electric Discharges, Ionospheric Electron Density, Magnetospheric Electron Density, Electric Potential, Field Aligned Currents, Magnetospheric Proton Density, Plasma Density

Scientific paper

A new mechanism is proposed for the generation of arcs of the polar aurora. It is shown that the potential difference across the magnetosphere in the region where field-aligned currents issue from the ionosphere leads to a periodic dependence of the electric field on the distance. When this occurs, the field-aligned currents form several parallel layers which can be regarded as identical with auroral arcs.

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