Effect of Nonthermal Ions on Dust Acoustic Waves in Magnetized Plasma

  • Banajit Sarmah Girijananda Chowdhury Institute of Management & Technology, Guwahati, Assam, India.
  • Anuradha Devi Royal Global University, Guwahati, Assam, India.
  • Jnanjyoti Sarma R. G. Baruah College, Guwahati, Assam, India.
Keywords: Magnetized plasma, nonthermal ion, Sagdeev potential


A fluid model is considered to study the nonlinear dust- acoustic waves (DAW) in magnetized dusty plasma. The model consists of dust articles having negative charge, nonthermal ions, and Boltzmann electrons. Sagdeev Potential equation is derived in the form of an energy integral by applying nonperturbative approach. The pseudopotential (Sagdeev potential) profile is analyzed to study the characteristic of the solitary waves. The study has been made related to the transition of the DAW and the corresponding characters by observing the variation of amplitudes and width of the solitons with Mach number, temperature ratio, density ratio, concentration of nonthermal ions, and the direction cosine. The parametric ranges are estimated numerically to confirm the existence of solitary waves of arbitrary amplitude.


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How to Cite
Banajit Sarmah, Anuradha Devi, and Jnanjyoti Sarma. 2019. “Effect of Nonthermal Ions on Dust Acoustic Waves in Magnetized Plasma”. Mathematical Journal of Interdisciplinary Sciences 8 (1), 21-27. https://doi.org/10.15415/mjis.2019.81004.