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Electron-acoustic shock waves; Zakharov–Kuznetsov–Burgers equation; dissipative medium

In this paper, we have studied the three-dimensional (3D) electron-acoustic waves (EAWs) in a three component complex plasma containing $q$-non-extensive distributed hot electrons and positrons. The propagation characteristics of the 3D electron-acoustic (EA) shock waves under the influence of magnetic field have been studied. Our present plasma model supports the negative potential shocks. Combined action of dissipation ($\eta$), nonextensivity ($q$), concentration of positrons ($\beta$), temperature ratio of cold electrons to positrons ($\sigma$) and magnetic field ($\omega_{c}$) on the EA shock waves has been studied in detail and the findings obtained here will be beneficial in future astrophysical investigations.

SONA BANSAL¹ MUNISH AGGARWAL²

1. Sikh National College, Charan Kanwal, Banga 144 505, India
2. Department of Physics, DAV University, Jalandhar 144 001, India

Published

12 March 2020

Manuscript received

3 June 2019

Manuscript revised

6 November 2019

Accepted

9 December 2019

Early published

Unedited version published online

Final version published online

6 March 2020