The formation of the wall region - Consequences in the near earth magnetotail

Details The formation of the wall region - Consequences in the near earth magnetotail The formation of the wall region - Consequences in the near earth magnetotail

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19.1739a&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 17, Sept. 4, 1992, p. 1739-1742. Research supported by CNRS.

Physics

40

Adiabatic Conditions, Earth Magnetosphere, Ion Motion, Magnetotails, Space Plasmas, Ampte (Satellites), Auroral Arcs, Convective Flow, Current Density, Quasi-Steady States

Scientific paper

This paper discusses important new findings obtained from global kinetic simulations of magnetotail plasma. A region of strongly nonadiabatic ion acceleration (known as the wall region) exists in the near earth tail and demarcates two very different regimes of ion motion: adiabatic and quasi-adiabatic. A strong enhancement of the cross-tail current occurs on the tailward side of the wall. A comparison of numerical and adiabatic pressure profiles indicates that nonadiabatic processes operating in this region may contribute significantly to a pressure balance relief in the course of quasi-steady magnetospheric convection.

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