• Nonlinear propagation of weakly relativistic ion-acoustic waves in electron–positron–ion plasma

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      https://www.ias.ac.in/article/fulltext/pram/087/05/0070

    • Keywords

       

      Electron–positron–ion plasma; weakly relativistic ion-acoustic waves; the ansatz method; generalized Riccati equation mapping method.

    • Abstract

       

      This work presents theoretical and numerical discussion on the dynamics of ion-acoustic solitary wave for weakly relativistic regime in unmagnetized plasma comprising non-extensive electrons, Boltzmann positrons and relativistic ions. In order to analyse the nonlinear propagation phenomena, the Korteweg–de Vries(KdV) equation is derived using the well-known reductive perturbation method. The integration of the derived equation is carried out using the ansatz method and the generalized Riccati equation mapping method. The influenceof plasma parameters on the amplitude and width of the soliton and the electrostatic nonlinear propagation of weakly relativistic ion-acoustic solitary waves are described. The obtained results of the nonlinear low-frequencywaves in such plasmas may be helpful to understand various phenomena in astrophysical compact object and space physics.

    • Author Affiliations

       

      M G HAFEZ1 2 M R TALUKDER3 M HOSSAIN ALI2

      1. Department of Mathematics, Chittagong University of Engineering and Technology, Chittagong-4349, Bangladesh
      2. Department of Applied Mathematics, University of Rajshahi, Rajshahi-6205, Bangladesh
      3. Department of Applied Physics and Electronic Engineering, University of Rajshahi, Rajshahi-6205, Bangladesh
    • Dates

       
  • Pramana – Journal of Physics | News

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