Abstract It is agreed that the plasma sheet boundary layer is a site of highly dynamic plasma behavior, with fast flows, field-aligned currents and intense broadband electrostatic noise commonly detected in this region. Most of the studies in the literature focus on macroscopic plasma parameters, e.g. density, velocity and temperature. These studies, while useful, do not allow for detailed comparisons between mechanisms to produce the ion beams characteristic of the boundary layer. In this presentation three-dimensional ion velocity distributions at the high-latitude edges of the plasma sheet are shown, and the theories which have been suggested to account for the streaming ions are compared with the observations. In addition anisotropic distributions observed in the neutral sheet are presented, and the relation to the plasma sheet boundary layer distributions is discussed.
Velocity distributions in the plasma sheet boundary layer
Advances in Space Research ; 11 , 9 ; 143-150
1991-01-01
8 pages
Article (Journal)
Electronic Resource
English
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