Instability of opposite polarity charged dusty plasma with vortex-like distributed electrons

Autor: S. K. Zaghbeer
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Taibah University for Science, Vol 16, Iss 1, Pp 351-361 (2022)
Druh dokumentu: article
ISSN: 16583655
1658-3655
DOI: 10.1080/16583655.2022.2059965
Popis: Electrons in space plasma may follow vortex-like distribution, that is why we have derived the three-dimentional (3D) nonlinear modified Zakharov–Kuznetsov (mZK), describing the propagation of dust acoustic solitary to the plasma system composed of four components, magnetized charged dust plasma with electrons modelled by vortex-like distribution. By using the reductive perturbation method, it has been found that both solitary wave amplitude and width are affected by the plasma parameters: graim charge ratio ρ, population parameter β, and temperature ratio σ. The small-k perturbation technique has also been applied to study the instability criterion and growth rate of this instability. Cyclotron frequency Ω, temperature ratio [Formula: see text], direction cosine ([Formula: see text] and [Formula: see text]), and grain charge ratio ρ are found to modify the instability growth rate Γ.
Databáze: Directory of Open Access Journals
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