One-dimensional PIC (Particle In Cell) simulation of electrostatic solitary waves and double layers in a nonthermal electron distributed plasma

Details One-dimensional PIC (Particle In Cell) simulation of electrostatic solitary waves and double layers in a nonthermal electron distributed plasma One-dimensional PIC (Particle In Cell) simulation of electrostatic solitary waves and double layers in a nonthermal electron distributed plasma

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm11b1727c&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SM11B-1727

Physics

[2159] Interplanetary Physics / Plasma Waves And Turbulence, [2164] Interplanetary Physics / Solar Wind Plasma, [2772] Magnetospheric Physics / Plasma Waves And Instabilities

Scientific paper

In this paper, possibility of the existence of electrostatic solitary waves is suggested using a pseudo-potential method for plasmas that consist of electrons, ions, and non-thermal electrons. We also present the results of a one-dimensional electrostatic particle simulation for plasmas that consist of Maxwellian electrons and ions with non-thermal electrons. Initially we introduce that the number densities of electrons and ions are given by the Gaussian perturbation, but nonthermal electron is given by nonthermal distribution function. For the plasmas drifting with electron thermal velocity, the simulation showed bump type solitary waves, double layers, and a dip type solitary wave propagating in front of the initial perturbation. In addition, it was seen that different ion and electron phase space structures are associated with these solitary waves according to their types. For example, ion holes appear in the ion phase space for the dip type solitary wave while double layers show different ion phase space structures. For the electrons, only the bump type electrostatic solitary wave is associated with an electron hole in the electron phase space.

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