Particle simulation of Langmuir turbulence during ionospheric heating

Details Particle simulation of Langmuir turbulence during ionospheric heating Particle simulation of Langmuir turbulence during ionospheric heating

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.2213c&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 17, Nov. 1990, p. 2213-2216.

Physics

3

Computerized Simulation, Ion Acoustic Waves, Ionospheric Heating, Magnetohydrodynamic Stability, Plasma Turbulence, Solitary Waves, Electric Fields, Models, Radio Waves, Solar Radio Bursts

Scientific paper

Ionospheric heating leads to strong Langmuir turbulence including modulational instability, soliton formation, and spatial collapse. The Zakharov model usually used to describe these effects contains a low-frequency ion-acoustic wave equation which cannot be rigorously justified in the ionosphere where the electron and ion temperatures are comparable. In the present work, the low-frequency physics is described by a many-ion computer simulation. While some differences are found, the results for the most part confirm the earlier, much less difficult, Zakharov calculations.

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