| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000390699 |
| ISSN: | 0103-9733 |
| Authors: | Mushtaq, A1 Shah, AttaUllah2 Ikram, M3 Clark, R.E.H4 |
| Institutions: | 1Abdul Wali Khan University, Department of Physics, Mardan, Jaiber Pajtunjuá. Pakistán 2University of Peshawar, Institute of Physics & Electronics, Peshawar. Pakistán 3Hazara University, Department of Physics, Mansehra. Pakistán 4University of Texas, Department of Physics, San Antonio, Texas. Estados Unidos de América |
| Year: | 2016 |
| Season: | Feb |
| Volumen: | 46 |
| Number: | 1 |
| Pages: | 78-86 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Low-frequency electrostatic drift waves are studied in an inhomogeneous dust magnetoplasma containing dust with components of opposite polarity. The drift waves are driven by the magnetic-field-aligned (parallel) sheared flows in the presence of electrons and ions. Due to sheared flow in the linear regime, the electrostatic dust drift waves become unstable. The conditions of mode instability, with the effects of dust streaming and opposite polarity, are studied. These are excited modes which gain large amplitudes and exhibit interactions among themselves. The interaction is governed by the Hasegawa-Mima (HM) nonlinear equation with vector nonlinearity. The stationary solutions of the HM equation in the form of a vortex chain and a dipolar vortex, including effects of dust polarity and electron (ion) temperatures, are studied. The relevance of the present work to space and laboratory four component dusty plasmas is noted |
| Disciplines: | Física y astronomía |
| Keyword: | Teoría cinética y plasmas, Plasmas de polvo, Inestabilidad de Kelvin-Helmholtz, Ondas electrostáticas de arrastre, Vórtices de arrastre, Ecuación de Hasegawa Mima |
| Keyword: | Physics and astronomy, Kinetic theory and plasma, Dusty plasmas, Kelvin-Helmholtz instability, Electrostatic drift waves, Drift vortices, Hasegawa Mima equation |
| Full text: | Texto completo (Ver PDF) |
