Two dimensional cylindrical fast magnetoacoustic solitary waves in a dust plasma

Liu, Hai-Feng; Wang, Shi-Qing; Wang, Zhan-He; Li, Chang-Zheng; Yao, Liu; Yang, Fa-Zhan
April 2011
Physics of Plasmas;Apr2011, Vol. 18 Issue 4, p044501
Academic Journal
The nonlinear fast magnetoacoustic solitary waves in a dust plasma with the combined effects of bounded cylindrical geometry and transverse perturbation are investigated in a new equation. In this regard, cylindrical Kadomtsev-Petviashvili (CKP) equation is derived using the small amplitude perturbation expansion method. Under a suitable coordinate transformation, the CKP equation can be solved analytically. It is shown that the dust cylindrical fast magnetoacoustic solitary waves can exist in the CKP equation. The present investigation may have relevance in the study of nonlinear electromagnetic soliton waves both in laboratory and astrophysical plasmas.


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