Document Type

Article

Journal Title

Journal of Geophysical Research

Volume Number

96

Issue Number

A8

First Page

14107

Last Page

14118

Version

Publisher PDF: the final published version of the article, with professional formatting and typesetting

Original Citation

Sheehan, D.P, R. Koslover and R. McWilliams, Laboratory simulations of suprauroral mechanisms leading to perpendicular ion heating and conic formation; J. Geophys. Res. 96 14,107 (1991).

Publication Date

8-1991

Disciplines

Physics

Abstract

Laboratory experiments are presented simulating aspects of perpendicular ion heating and conic formation that are observed or hypothesized to occur in the terrestrial ionosphere and magnetosphere. Previous laboratory observations of ion conics in the presence of the current‐driven electrostatic ion cyclotron wave are reviewed. Field‐aligned ion beams, accompanied by beam‐generated electrostatic ion cyclotron modes, resulted in perpendicular energization of beam ions and also the heating of background plasma ions. Antenna‐launched broadband and narrow‐band lower hybrid waves produced considerable perpendicular ion heating and non‐Maxwellian “tail” formation. Laboratory results are discussed in light of in situ measurements by the S3‐3 satellite and the MARIE sounding rocket.

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