3D electron-acoustic solitary waves introduced by phase space electron vortices in magnetized space plasmas

Details 3D electron-acoustic solitary waves introduced by phase space electron vortices in magnetized space plasmas 3D electron-acoustic solitary waves introduced by phase space electron vortices in magnetized space plasmas

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3107803s&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 7, CiteID L07803

Physics

18

Magnetospheric Physics: Plasma Waves And Instabilities, Magnetospheric Physics: Energetic Particles, Trapped, Magnetospheric Physics: Auroral Phenomena (2407)

Scientific paper

We derive a multi-dimensional nonlinear equation for electron-acoustic waves in magnetized plasmas composed of stationary ions, magnetized cold electrons with a significant fraction of electron beams, and magnetized hot electrons which have a non-isothermal vortex-like distribution. We find three-dimensional (3D) electron-acoustic solitary waves which have a stronger nonlinearity (in comparison with that associated with the traditional harmonic generation) due to the trapping of hot electrons in the localized electron-acoustic wave potential. The relevance of our investigation to nonlinear structures (e.g., the bipolar parallel electric fields) in the Earth's magnetosphere is discussed.

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