Nonlinear Coupling of Langmuir Waves with Whistler Waves in the Solar Wind

Details Nonlinear Coupling of Langmuir Waves with Whistler Waves in the Solar Wind Nonlinear Coupling of Langmuir Waves with Whistler Waves in the Solar Wind

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999soph..184..403c&link_type=abstract

Solar Physics, v. 184, Issue 2, p. 403-419 (1999).

Physics

5

Scientific paper

Close temporal correlation between high-frequency Langmuir waves and low-frequency electromagnetic whistler waves has been observed recently within magnetic holes of the solar wind. In order to account for these observations, a theory is formulated to describe the nonlinear coupling of Langmuir waves and whistler waves. It is shown that a Langmuir wave can interact nonlinearly with a whistler wave to produce either right-hand or left-hand circularly polarized electromagnetic waves. Nonlinear coupling of Langmuir waves and whistler waves may lead to the formation of modulated Langmuir wave packets as well as the generation of circularly polarized radio waves at the plasma frequency in the solar wind. Numerical examples of whistler frequency, nonlinear growth rate and modulation frequency for solar wind parameters are calculated.

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