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• W2072932843 endingPage "1369" @default.
• W2072932843 startingPage "1360" @default.
• W2072932843 abstract "The nonlinear propagation of electrostatic dust-acoustic (DA) waves in a magnetized dusty plasma consisting of negatively charged mobile dusts, nonthermal fast electrons and trapped ions with vortex-like distribution is studied. Using the reductive perturbation technique, a Korteweg–de Vries (KdV)-like equation is derived which governs the dynamics of the small-amplitude solitary waves in a magnetized dusty nonthermal plasma. It is found that due to the dust thermal pressure, there exists a critical value (βc) of the nonthermal parameter β (>1), denoting the percentage of energetic electrons, below which the DA solitary waves cease to propagate. The soliton solution (traveling wave) of the KdV-like equation is obtained, and is shown to be only of the rarefactive type. The properties of the solitons are analyzed numerically with the system parameters. It is also seen that the effect of the static magnetic field (which only modifies the soliton width) becomes significant when the dust gyrofrequency is smaller than one-tenth of the dust plasma frequency. Furthermore, the amplitude of the soliton is found to increase (decrease) when the ratio of the free to trapped ion temperatures (σ) is positive (negative). The effects of the system parameters including the obliqueness of propagation (lz) and σ on the dynamics of the DA solitons are also discussed numerically, and it is found that the soliton structures can withstand perturbations and turbulence during a considerable time. The results should be useful for understanding the nonlinear propagation of DA solitary waves in laboratory and space plasmas (e.g., Earth’s magnetosphere, auroral region, heliospheric environments, etc.)." @default.
• W2072932843 created "2016-06-24" @default.
• W2072932843 creator A5039909193 @default.
• W2072932843 creator A5042232271 @default.
• W2072932843 date "2015-05-01" @default.
• W2072932843 modified "2023-10-11" @default.
• W2072932843 title "Dust-acoustic solitary waves in a magnetized dusty plasma with nonthermal electrons and trapped ions" @default.
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• W2072932843 doi "https://doi.org/10.1016/j.cnsns.2014.07.017" @default.
• W2072932843 hasPublicationYear "2015" @default.
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