Three dimensional electrostatic solitary waves in a dense magnetoplasma with relativistically degenerate electrons

Rahman, Ata-ur and Masood, Waqas and Eliasson, Bengt and Qamar, A (2013) Three dimensional electrostatic solitary waves in a dense magnetoplasma with relativistically degenerate electrons. Physics of Plasmas, 20 (9). 092305. ISSN 1070-664X

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Abstract

In this paper, small but finite amplitude electrostatic solitary waves in a relativistic degenerate magnetoplasma, consisting of relativistically degenerate electrons and non-degenerate cold ions, are investigated. The Zakharov-Kuznetsov equation is derived employing the reductive perturbation technique and its solitary wave solution is analyzed. It is shown that only compressive electrostatic solitary structures can propagate in such a degenerate plasma system. The effects of plasma number density, ion cyclotron frequency, and direction cosines on the profiles of ion acoustic solitary waves are investigated and discussed at length. The relevance of the present investigation vis-a-vis pulsating white dwarfs is also pointed out.