Dynamics of Electron Beam Propagation and Harmonic Langmuir Wave Generation

Details Dynamics of Electron Beam Propagation and Harmonic Langmuir Wave Generation Dynamics of Electron Beam Propagation and Harmonic Langmuir Wave Generation

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsh21d..05g&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SH21D-05

Physics

7839 Nonlinear Phenomena, 7863 Turbulence, 7867 Wave/Particle Interactions, 7868 Wave/Wave Interactions, 2159 Plasma Waves And Turbulence

Scientific paper

Generation of harmonic Langmuir modes during beam-plasma interaction process has been observed in both laboratory and computer simulation experiments. They are also be highly relevant to the dynamics of energetic electron beam, generated during solar flares and which propagate in interplanetary space. However, the harmonic Langmuir mode generation and its dynamical behavior has not been properly discussed theoretically. In this paper, rigorous analytic expressions for harmonic Langmuir mode dispersion relations are obtained, and are compared against the simulated frequency-wave number spectra. Also, wave kinetic equations for these modes as well as particle kinetic equations are derived and numerically solved. The results are compared against fully nonlinear Vlasov simulation results.

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