Nonlinear properties of electron acoustic wave turbulence in the geomagnetic tail

Details Nonlinear properties of electron acoustic wave turbulence in the geomagnetic tail Nonlinear properties of electron acoustic wave turbulence in the geomagnetic tail

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.149..127b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 149, no. 1, Nov. 1988, p. 127-140. Research supported by the Alexander von

Astronomy and Astrophysics

Astrophysics

7

Electron Radiation, Geomagnetic Tail, Plasma Turbulence, Space Plasmas, Coupled Modes, Hot Electrons, Ion Acoustic Waves, Nonlinear Equations

Scientific paper

The nonlinear properties of electron acoustic waves in a magnetized plasma consisting of hot electrons, hot ions, and cold electrons are investigated. Using a fluid-guiding center model for the cold electrons and Boltzmann distributions for the hot species, a set of nonlinear mode-coupling equations is derived. Monopole and dipole-vortex solutions are shown to exist for the system of nonlinear equations. Spectrum cascade by mode-coupling in the electron acoustic wave turbulence is investigated. Relevance of the investigation to broadband electrostatic noise in the geomagnetic tail is discussed.

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