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Propagation of nonlinear dust-acoustic solitary waves under the effect of non-extensive electrons in inhomogeneous collisional magnetized dusty plasma

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Abstract

In this paper, we have presented a study on the propagation of nonlinear Dust-Acoustic Solitary Waves (DASWs) in inhomogeneous magnetized dusty plasma. In this model, we have considered a system of collisional, magnetized dusty plasma, consisting of nonextensive electrons, Boltzmannean ions, and negatively charged dust grains in the plasma. We have also considered variable number density for the different dusty plasma components. Using the Reductive Perturbation Theory (RPT), the modified Zakharov-Kuznetsov (m-ZK) equation is derived with the help of governing equations in the plasma. The solutions of m-ZK equation indicate the propagation of nonlinear DASWs. This study also shows how the inhomogeneity parameters and nonextensive electrons impact on the phase velocity, width and amplitude of the soliton propagating in inhomogeneous plasmas. In this investigation, we have also predicted some relations among the amplitude, width, and phase velocity of the DASWs which is relevant to Earth’s magnetospheric plasma environment for the system.

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Correspondence to Hirak Jyoti Dehingia or P. N. Deka.

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Dehingia, H.J., Deka, P.N. Propagation of nonlinear dust-acoustic solitary waves under the effect of non-extensive electrons in inhomogeneous collisional magnetized dusty plasma. J. Korean Phys. Soc. 83, 337–343 (2023). https://doi.org/10.1007/s40042-023-00854-2

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