Longitudinal electric fields in Alfven waves

Details Longitudinal electric fields in Alfven waves Longitudinal electric fields in Alfven waves

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ge%26ae..20..286l&link_type=abstract

Geomagnetizm i Aeronomiia, vol. 20, Mar.-Apr. 1980, p. 286-289. In Russian.

Physics

Atmospheric Electricity, Earth Magnetosphere, Electric Fields, Magnetohydrodynamic Waves, Plasma Currents, Cold Plasmas, High Temperature Plasmas, Plasma Density, Wave Propagation

Scientific paper

A mechanism is proposed for the generation of longitudinal electric fields in the magnetospheric plasma. A double electric layer is formed at the wave front of Alfven waves propagating in the magnetosphere, causing the cold electrons to accelerate. While in the absence of a hot plasma the layer potential is small, the presence of a hot plasma significantly increases this potential and decreases the critical current value required for the generation of large longitudinal electric fields.

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