Some aspects of double layer formation in a plasma constrained by a magnetic mirror

Details Some aspects of double layer formation in a plasma constrained by a magnetic mirror Some aspects of double layer formation in a plasma constrained by a magnetic mirror

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2469..275l&link_type=abstract

In NASA. Marshall Space Flight Center Double Layers in Astrophysics p 275-285 (SEE N87-23313 16-88)

Physics

Auroras, Electric Fields, Magnetic Mirrors, Plasma Control, Plasma Layers, Plasma Turbulence, Plasmas (Physics), Boltzmann Distribution, Boundary Value Problems, Kinetic Energy, Particle Density (Concentration), Velocity Distribution

Scientific paper

The shift from wave-generated anomalous resistivity toward the more large-scale effects of magnetic confinement of current carrying plasmas was inspired by the more extensive data on auroral particle distribution functions that were made available, data that may often seem consistent with a dissipation-free acceleration of auroral electrons over an extended altitude range. Efforts to interpret these data have brought new vigor to the concept that a smooth and static electric field can be self-consistently generated by suitable pitch angle anisotropies among the high altitude particle populations, different for electrons and ions, and that such an electric field is both necessary and sufficient to maintain the plasma in a quasi-neutral steady state. Certain aspects of this concept are reviewed and criticized, both from a general theoretical standpoint and from the standpoint of what is known about the magnetospheric environment. It is argued that this concept has flaws and that the actual physical problem is considerably more complicated, requiring a more complex electric field, possibly including double layer structures.

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