Electromagnetic instability of Langmuir waves in a magnetoplasma

Details Electromagnetic instability of Langmuir waves in a magnetoplasma Electromagnetic instability of Langmuir waves in a magnetoplasma

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phfl...26..959s&link_type=abstract

Physics of Fluids (ISSN 0031-9171), vol. 26, April 1983, p. 959-961.

Physics

1

Electron Plasma, Electrostatic Waves, Magnetohydrodynamic Stability, Magnetoplasmadynamics, Plasma Waves, Type 3 Bursts, Beta Factor, Decay Rates, Ponderomotive Forces, Solar Wind

Scientific paper

Finite beta effects are included in an examination of the stability of a finite amplitude electron plasma wave. The low frequency decay product is shown to be an electromagnetic phenomena, and the decay and modulational instability growth rates are quantified. The analysis is applied to a type III solar radio burst at a location of one-third of a solar radius above the solar surface. The beta value is found to exceed the value of the electron ion/mass ratio, confirming that parametric instabilities of kinetic Alfven waves are a significant factor. The necessity of obtaining experimental data on parametric interactions at low pump powers is indicated.

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