dorsal/arxiv
View SchemaStability Dust-Ion-Acoustic Wave in Dusty Plasmas With Stream -Influence of Charge Fluctuation of Dust Grains
| Authors | Barbara Atamaniuk, Krzysztof Zuchowski |
|---|---|
| Categories | |
| ArXiv ID | physics/0701334 |
| URL | https://arxiv.org/abs/physics/0701334 |
| DOI | 10.1063/1.2168867 |
| Journal | AIP Conf. Proc. 812, 385 (2005) |
Abstract
There is a quickly increasing wealth of experimental data on so-called dusty plasmas i. e. ionized gases or usual plasmas that contain micron sized charged particles. Interest in these structures is driven both by their importance in many astrophysical as well as commercial situations. Among them are linear and nonlinear wave phenomena. We consider the influence of dust charge fluctuations on stability of the ion-acoustic waves when the stream of particles is present. It is assumed that all grains of dust have equal masses but charges are not constant in time-they may fluctuate in time. The dust charges are not really independent of the variations of the plasma potentials. All modes will influence the charging mechanism, and feedback will lead to several new interesting and unexpected phenomena. The charging of the grains depends on local plasma characteristics. If the waves disturb these characteristic, then charging of the grains is affected and the grain charge is modified, with a resulting feedback on the wave mode. In case considering here, when temperature of electrons is much greater then the temperature of the ions and temperature of electrons is not great enough for further ionization of the ions, we show that stability of the acoustic wave depends only one phenomenological coefficient.
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"abstract": "There is a quickly increasing wealth of experimental data on so-called dusty\nplasmas i. e. ionized gases or usual plasmas that contain micron sized charged\nparticles. Interest in these structures is driven both by their importance in\nmany astrophysical as well as commercial situations. Among them are linear and\nnonlinear wave phenomena. We consider the influence of dust charge fluctuations\non stability of the ion-acoustic waves when the stream of particles is present.\nIt is assumed that all grains of dust have equal masses but charges are not\nconstant in time-they may fluctuate in time. The dust charges are not really\nindependent of the variations of the plasma potentials. All modes will\ninfluence the charging mechanism, and feedback will lead to several new\ninteresting and unexpected phenomena. The charging of the grains depends on\nlocal plasma characteristics. If the waves disturb these characteristic, then\ncharging of the grains is affected and the grain charge is modified, with a\nresulting feedback on the wave mode. In case considering here, when temperature\nof electrons is much greater then the temperature of the ions and temperature\nof electrons is not great enough for further ionization of the ions, we show\nthat stability of the acoustic wave depends only one phenomenological\ncoefficient.",
"arxiv_id": "physics/0701334",
"authors": [
"Barbara Atamaniuk",
"Krzysztof Zuchowski"
],
"categories": [
"physics.plasm-ph",
"physics.space-ph"
],
"doi": "10.1063/1.2168867",
"journal_ref": "AIP Conf. Proc. 812, 385 (2005)",
"title": "Stability Dust-Ion-Acoustic Wave in Dusty Plasmas With Stream -Influence of Charge Fluctuation of Dust Grains",
"url": "https://arxiv.org/abs/physics/0701334"
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