Non-neutral field-aligned current sheet and the auroral electric field

Details Non-neutral field-aligned current sheet and the auroral electric field Non-neutral field-aligned current sheet and the auroral electric field

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jatp...42..317a&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 42, Apr. 1980, p. 317-321.

Physics

Atmospheric Models, Auroral Electrojets, Current Sheets, Electric Fields, Field Aligned Currents, Ionospheric Currents, Electron Plasma, High Temperature Plasmas, Magnetic Fields, Maxwell Equation, Vlasov Equations

Scientific paper

Equilibrium configurations of the non-neutral field-aligned electron current sheet in a Maxwellian plasma are obtained from solutions of the time-independent Vlasov-Maxwell Equations. This is the first field-aligned non-neutral current sheet model in a hot plasma in which the electrons are allowed to be nonadiabatic. The current in this model has a perpendicular (i.e. diamagnetic) as well as a parallel component to the external magnetic field. The electric field of the current sheet is pointing normally toward the midplane of the sheet. This zeroth-order perpendicular electric field is identified as the primary electric field which gives rise to a few keV potential drop along auroral field lines.

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