• Two-dimensional ion-acoustic solitary waves obliquely propagating in a relativistic rotating magnetised electron–positron–ion plasma in the presence of external periodic force

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    • Keywords


      Ion-acoustic wave; Boltzmann distribution; reductive perturbation technique; wave propagation.

    • Abstract


      The characteristics of ion-acoustic solitary waves in rotating, weakly relativistic, magnetised and collisionless plasma system comprising electron, positron and ion (EPI) under a periodic external force, whose constituents electron and positron obey Boltzmann distribution, are investigated by deriving forced Zakharov–Kuznetsov (FZK) equation. FZK equation is constructed using reductive perturbation technique (RPT) which is based on multiple-scale analysis of dependent variables. The effects of physical parameters such as the ratio of temperature of electron and positron, the strength of external periodic force, positron concentration in electron background, ion temperature and magnetic field on the analytical solitary wave solution of FZK equation are observed. It is seen that the behaviours of ion-acoustic wave are significantly affected due to the presence of positron and the periodic external forces. The results of this work may be applied when the above-mentioned plasma environment is found in laboratory as well as in space.

    • Author Affiliations



      1. Department of Mathematics, Mathabhanga College, Cooch Behar 736 146, India
      2. Department of Mathematics, Cooch Behar Panchanan Barma University, Cooch Behar 736 101, India
      3. Department of Mathematics, Siksha Bhavana, Visva-Bharati, Santiniketan 731 235, India
      4. Department of Mathematics, Alipurduar College, Alipurduar 736 122, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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