Electrostatic wave noise in the neutral sheet in the earth's geomagnetic tail

Details Electrostatic wave noise in the neutral sheet in the earth's geomagnetic tail Electrostatic wave noise in the neutral sheet in the earth's geomagnetic tail

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984p%26ss...32.1147s&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 32, Sept. 1984, p. 1147-1167.

Computer Science

2

Electrostatic Waves, Geomagnetic Tail, Neutral Sheets, Noise Spectra, Wave Dispersion, Plasma Frequencies, Plasma Oscillations, Plasma Waves, Propagation Modes, Vlasov Equations

Scientific paper

Numerical solutions are obtained from analytic dispersion relations for electrostatic waves in a self-consistent, one-dimensional magnetic neutral sheet. The dispersion relations are solved in the real wave number and complex frequency domain. The properties of wave modes will be described, with special emphasis on instability. Several regimes of instability are identified which may generally be divided into two classes. Wave growth is associated firstly with counterstreaming between ions and electrons, giving rise to low frequency waves similar to the usual electrostatic two-stream mode. In addition, high frequency growing waves occur, associated with harmonics of the electron oscillation frequency across the neutral plane.

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