Dust-ion-acoustic solitary waves in a two-temperature electrons with charge fluctuations in a dusty plasma
| Autor: | S. K. El-Labany, L. S. El-Sherif, E. F. El-Shamy, M. Shalaby |
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| Rok vydání: | 2009 |
| Předmět: |
Physics
Dusty plasma General Mathematics Applied Mathematics Mathematics::Analysis of PDEs General Physics and Astronomy Cnoidal wave Statistical and Nonlinear Physics Plasma Electron Ion Nonlinear Sciences::Exactly Solvable and Integrable Systems Physics::Plasma Physics Quantum mechanics Astrophysics::Earth and Planetary Astrophysics Soliton Atomic physics Perturbation theory Korteweg–de Vries equation Nonlinear Sciences::Pattern Formation and Solitons |
| Zdroj: | Chaos, Solitons & Fractals. 41:1208-1217 |
| ISSN: | 0960-0779 |
| DOI: | 10.1016/j.chaos.2008.05.001 |
| Popis: | The nonlinear structure of small amplitude dust-ion-acoustic (DIA) solitary waves is investigated in a hot magnetized dusty plasma consisting of negative dust grains, positive ions, and two-temperature isothermal electrons. The charge fluctuation dynamics of the dust grains has also been considered. A Korteweg–de Vries (KdV) equation, Modified Korteweg–de Vries (MKdV) equation and Korteweg–de Vries (KdV) type equation at critical densities of ions are derived using a reductive perturbation theory. The effects of two-temperature electrons and external oblique magnetic field on the properties of solitary waves are studied. Such study showed that the presence of a second component of electrons modifies the nature of DIA solitary waves structures. This has an important consequence for the reinterpretation of several astrophysical phenomena involving two-temperature electrons. The present investigation can be relevance to electrostatic solitary structures observed in many cosmic dust–laden plasmas, such as Saturn’s rings. |
| Databáze: | OpenAIRE |
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