Destiny of earthward streaming plasma in the plasmasheet boundary layer

Details Destiny of earthward streaming plasma in the plasmasheet boundary layer Destiny of earthward streaming plasma in the plasmasheet boundary layer

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13...76g&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 13, Jan. 1986, p. 76-79. Research supported by the University of Alabama.

Physics

11

Boundary Layers, Earth Magnetosphere, Geomagnetic Tail, Particle Trajectories, Protons, Space Plasmas, Atmospheric Models, Auroral Zones, Electric Fields, Field Aligned Currents, Ion Density (Concentration), Magnetosphere-Ionosphere Coupling

Scientific paper

The dynamics of the earth's magnetotail have been investigated, and it has become clear that the plasmasheet boundary layer field lines map into the Region I Field-Aligned Currents (FAC) of the auroral zone. It is pointed out that the role of earthward streaming ions in the plasmasheet boundary layer may be of fundamental importance in the understanding of magnetotail dynamics, auroral zone physics, and especially for ionospheric-magnetospheric interactions. The present paper has the objective to evaluate propagation characteristics for the earthward streaming ions observed in the plasmasheet boundary layer. An investigation is conducted of the propagation characteristics of protons in the plasmasheet boundary layer using independent single particle dynamics, and conclusions are discussed. The density of earthward streaming ions found in the plasmasheet boundary layer should include the ring current as well as the auroral zone precipitaiton and inner plasmasheet regions of the magnetosphere.

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