Radiation of whistlers by the ion-acoustic turbulence in the ionosphere

Details Radiation of whistlers by the ion-acoustic turbulence in the ionosphere Radiation of whistlers by the ion-acoustic turbulence in the ionosphere

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...10019695m&link_type=abstract

Journal of Geophysical Research, Volume 100, Issue A10, p. 19695-19700

Physics

Plasma Physics

5

Space Plasma Physics: Nonlinear Phenomena, Ionosphere: Auroral Ionosphere, Ionosphere: Plasma Waves And Instabilities, Space Plasma Physics: Turbulence

Scientific paper

The generation of whistlers in the ionosphere due to the nonlinear coalescence of ion-acoustic waves is analyzed by means of the weak turbulence approach. The ion-acoustic turbulence is supposed to be driven by field-aligned currents or/and the nonlinear coupling of Langmuir waves generated in an unstable beam-plasma system. The spectral power of whistlers radiated by the ion-acoustic turbulence is evaluated with special regard to small-scale auroral events, artificial injections of an electron beam, and the tethered satellite system. In particular, this mechanism of whistler radiation can contribute to the low-frequency part of the auroral hiss. ©American Institute of Physics 1995

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