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

doi:10.1088/1674-1056/27/2/025203

中国物理B ›› 2018, Vol. 27 ›› Issue (2): 25203-025203.doi: 10.1088/1674-1056/27/2/025203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

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

收稿日期:2017-08-28 修回日期:2017-10-30 出版日期:2018-02-05 发布日期:2018-02-05
通讯作者: Shaukat Ali Shan E-mail:shaukatshan@gmail.com

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

Received:2017-08-28 Revised:2017-10-30 Online:2018-02-05 Published:2018-02-05
Contact: Shaukat Ali Shan E-mail:shaukatshan@gmail.com
About author:52.35.Fp; 52.25.Dg; 52.35.Qz

摘要/Abstract

摘要： 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.

关键词: sheared flow plasma, density inhomogeniety, electron trapping

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.

Key words: sheared flow plasma, density inhomogeniety, electron trapping

中图分类号: (Electrostatic waves and oscillations (e.g., ion-acoustic waves))

52.35.Fp

52.25.Dg (Plasma kinetic equations) 52.35.Qz (Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.))

Shaukat Ali Shan,Qamar-ul-Haque. Schamel equation in an inhomogeneous magnetized sheared flow plasma with q-nonextensive trapped electrons[J]. 中国物理B, 2018, 27(2): 25203-025203.

Shaukat Ali Shan, Qamar-ul-Haque. Schamel equation in an inhomogeneous magnetized sheared flow plasma with q-nonextensive trapped electrons[J]. Chin. Phys. B, 2018, 27(2): 25203-025203.

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

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

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