Oblique propagation of arbitrary amplitude ion acoustic solitary waves in anisotropic electron positron ion plasma

Frontiers in Physics

Physics

Sayed M. Eldin¹  Muhammad Khalid² 

[1] Center of Research, Faculty of Engineering, Future University in Egypt, New Cairo, Egypt;Department of Physics, Government Post Graduate College Mardan, Mardan, Pakistan;

关键词: solitary waves;    positrons;    Sagdeev approach;    pressure anisotropy;    magnetized plasma;   

DOI  :  10.3389/fphy.2023.1144175

 received in 2023-01-13, accepted in 2023-02-09,  发布年份 2023

来源: Frontiers

【 摘 要 】

The oblique propagation of arbitrary ion acoustic solitary waves (IASWs) in magnetized electron-positron-ion plasmas is investigated by employing Sagdeev pseudopotential approach. Ions are assumed to be adiabatic having anisotropic thermal pressure. Electrons and positrons are considered to be isothermal, following Maxwellian distribution. In terms of electrostatic potential, Sagdeev potential function is obtained and analyzed numerically in the context of relevant plasma configuration parameters. The existence region of solitary pulses is defined accurately. It is investigated how several plasma configuration parameters, such as the positron concentration, parallel, and perpendicular ion pressure affect soliton characteristics.

【 授权许可】

Unknown   
Copyright © 2023 Almas, Ata-ur-Rahman, Khalid and Eldin.