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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/080/04/0665-0676

    • Keywords

       

      Dusty plasma; dust-acoustic waves; Gardner solitons; superthermal electrons.

    • Abstract

       

      The properties of nonplanar (cylindrical and spherical) dust-acoustic solitary waves (DASWs) in an unmagnetized, collisionless three-component dusty plasma, whose constituents are negatively charged cold dust fluid, superthermal/non-Maxwellian electrons (represented by kappa distribution) and Boltzmann distributed ions, are investigated by deriving the modified Gardner (MG) equation. The well-known reductive perturbation method is employed to derive the MG equation. The basic features of nonplanar DA Gardner solitons (GSs) are discussed. It is seen that the properties of nonplanar DAGSs (positive and negative) significantly differ as the value of spectral index 𝜅 changes.

    • Author Affiliations

       

      Deb Kumar Ghosh1 Yday Narayan Ghosh1 Prasanta Chatterjee1 C S Wong2

      1. Department of Mathematics, Siksha Bhavana, Visva Bharati University, Santiniketan 731 235, India
      2. Department of Physics, Plasma Research Laboratory, University of Malaya, 50603 Kuala Lumpur, Malaysia
    • Dates

       
  • Pramana – Journal of Physics | News

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