Reference : Existence domains for nonlinear structures in complex two-ion-temperature plasmas
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/33765
Existence domains for nonlinear structures in complex two-ion-temperature plasmas
English
Hellberg, M. A. [> > > >]
Verheest, F. [> > > >]
Cattaert, Tom [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Bioinformatique >]
2006
Journal of Physics : A Mathematical & General
Institute of Physics
39
12
3137-3146
Yes (verified by ORBi)
0305-4470
Bristol
United Kingdom
[en] ION-ACOUSTIC SOLITONS ; DUSTY PLASMAS ; DOUBLE-LAYERS ; ELECTROSTATIC ; SOLITONS
[en] The existence domains for one-dimensional acoustic solitons and double layers in complex (dusty) plasmas with two ion temperatures are obtained, using the fluid dynamic paradigm with a general polytropic equation of state. Dust-acoustic solitons are considered in a four-component plasma of negative dust grains, cool and very hot ions, and very hot electrons. Whereas in a dust-ion-electron plasma only negative potential solitons are supported, the presence of a second ion component allows positive potential solitons to occur as well. The existence domain in parameter space is delineated, in particular, also for the reduced three-component case in which there are no free electrons, all electrons being adsorbed onto the dust grains. Next, the ion-acoustic regime is considered. Both positive and negative potential dust-ion acoustic solitons and double layers are found, and their existence conditions in the parameter space of cool ion density and Mach number derived.
http://hdl.handle.net/2268/33765
10.1088/0305-4470/39/12/020

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