| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000385162 |
| ISSN: | 0103-9733 |
| Authors: | Ferdousi, M1 Mamun, A.A1 |
| Institutions: | 1Jahangirnagar University, Department of Physics, Savar, Dhaka. Bangladesh |
| Year: | 2015 |
| Season: | Feb |
| Volumen: | 45 |
| Number: | 1 |
| Pages: | 89-94 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The nonlinear dynamics of the dust-acoustic shock waves in a dusty plasma containing negatively charged mobile dust, nonextensive electrons with two distinct temperatures, and Maxwellian ions have been investigated by deriving the Burgers equation. The normal mode analysis is used to examine the linear properties of dustacoustic (DA) waves. It has been observed that the properties of the DA shock waves (SHWs) are significantly modified by nonextensivity of the electrons, electron temperature ratios, and the respective number densities of two species of electrons. A critical value of nonextensivity is found for which shock structures transit from positive to negative potential. The shock waves with positive and negative potential are obtained depending on the plasma parameters. The entailments of our results may be useful to understand the structures and the characteristics of DASHWs both in laboratory and astrophysical plasma systems |
| Disciplines: | Física y astronomía |
| Keyword: | Teoría cinética y plasmas, Ondas acústicas de polvo, Iones de Maxwell, Electrones no extensivos, Método de perturbación reductiva, Ecuación de Burgers |
| Keyword: | Physics and astronomy, Kinetic theory and plasma, Dust-acoustic waves, Maxwellian ions, Nonextensive electrons, Reductive perturbation method, Burgers equation |
| Full text: | Texto completo (Ver HTML) |
