Influence of the electron source distribution on field-aligned currents

Details Influence of the electron source distribution on field-aligned currents Influence of the electron source distribution on field-aligned currents

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985georl..12...53b&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 12, Jan. 1985, p. 53-56. Research supported by the Bundesministerium für For

Physics

13

Auroral Arcs, Electron Flux Density, Field Aligned Currents, Ionospheric Currents, Ring Currents, Earth Magnetosphere, Lines Of Force, Particle Acceleration

Scientific paper

The field-aligned current density above a discrete auroral arc has been deduced from the downward electron flux and magnetic field measurements onboard the rocket Porcupine flight 4. Both measurements show that the field-aligned current density is, in spite of decreasing peak energies towards the edge of the arc, about 4 times higher there than in the center of the arc. This can be explained by using the single particle description for an anisotropic electron source distribution.

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