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arXiv · 1301.3066

Vlasov simulations of Langmuir Electrostatic Decay and consequences for Type III observations

P. Henri·F. Califano·C. Briand·A. Mangeney
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Abstract

The electrostatic decay enables energy transfer from a finite amplitude Langmuir to a backscattered daughter Langmuir wave and ion acoustic density fluctuations. This mechanism is thought to be a first step for the generation of type III solar radio emissions at twice the plasma frequency. The electrostatic decay is here investigated through Vlasov-Poisson simulations by considering Langmuir localized wave packets in the case Te = Tp. Simulation results are found to be in good agreement with recently reported observations from the STEREO mission of the electrostatic decay of beam-driven Langmuir waves during a type III burst.

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P. Henri, F. Califano, C. Briand, A. Mangeney. 2013-01-14. Vlasov simulations of Langmuir Electrostatic Decay and consequences for Type III observations. https://doi.org/10.1063/1.3395857

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