Tuesday, January 15, 2013

1301.3066 (P. Henri et al.)

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

P. Henri, F. Califano, C. Briand, A. Mangeney
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.
View original: http://arxiv.org/abs/1301.3066

No comments:

Post a Comment