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Chin. Phys. B, 2018, Vol. 27(2): 025203    DOI: 10.1088/1674-1056/27/2/025203
PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES Prev   Next  

Schamel equation in an inhomogeneous magnetized sheared flow plasma with q-nonextensive trapped electrons

Shaukat Ali Shan, Qamar-ul-Haque
Theoretical Physics Division(TPD), PINSTECH, P. O. Nilore, Islamabad, Pakistan
Abstract  An investigation is carried out for understanding the properties of ion-acoustic (IA) solitary waves in an inhomogeneous magnetized electron-ion plasma with field-aligned sheared flow under the impact of q-nonextensive trapped electrons. The Schamel equation and its stationary solution in the form of solitary waves are obtained for this inhomogeneous plasma. It is shown that the amplitude of IA solitary waves increases with higher trapping efficiency (β), while the width remains almost the same. Further, it is found that the amplitude of the solitary waves decreases with enhanced normalized drift speed, shear flow parameter and the population of the energetic particles. The size of the nonlinear solitary structures is calculated to be a few hundred meters and it is pointed out that the present results are useful to understand the solar wind plasma.
Keywords:  sheared flow plasma      density inhomogeniety      electron trapping  
Received:  28 August 2017      Revised:  30 October 2017      Accepted manuscript online: 
PACS:  52.35.Fp (Electrostatic waves and oscillations (e.g., ion-acoustic waves))  
  52.25.Dg (Plasma kinetic equations)  
  52.35.Qz (Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.))  
Corresponding Authors:  Shaukat Ali Shan     E-mail:  shaukatshan@gmail.com
About author:  52.35.Fp; 52.25.Dg; 52.35.Qz

Cite this article: 

Shaukat Ali Shan, Qamar-ul-Haque Schamel equation in an inhomogeneous magnetized sheared flow plasma with q-nonextensive trapped electrons 2018 Chin. Phys. B 27 025203

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