Electrostatic Ion Instabilities in the Presence of Parallel Currents and Transverse Electric Fields
Abstract
The electrostatic ion instabilities are studied for oblique propagation in the presence of magnetic field-aligned currents and transverse localized electric fields in a weekly collisional plasma. It is shown that the presence of transverse electric fields may result in mode excitation for the magnetic field aligned current values that are otherwise stable. The electron collisions enhance the growth while ion collisions have a damping effect. These results are discussed in the context of observation of low frequency ion modes in the auroral ionosphere by radar and rocket experiments. Keywords: Electrostatic Ion instabilities; Transverse localized electric fields; Obliquely Propagating; Electrostatic Ion modes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 13, 1988
- Accession Number
- ADA199735
Entities
People
- G. Ganguli
- P. J. Palmadesso
Organizations
- United States Naval Research Laboratory