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Bifurcation of ion-acoustic waves (IAWs) is studied for the lower ionosphere of Venus. The nonlinear wave solutions in a three-component plasma comprising of two ions \(H^+\) and \(O^+\) with Maxwellian distributed electrons are examined. To obtain the Korteweg-de Vries (KdV) equation, the plasma system is subjected to the reductive perturbation technique (RPT). With the help of a travelling wave transformation, planar dynamical system is formed for the KdV equation. Phase portrait is drawn and the corresponding nonlinear waves are analyzed. The effects of the physical parameters \(\gamma \) ( \(n_{H0}/n_{O0}\) ), the unperturbed number density ratio for ( \(H^+\) ) and ( \(O^+\) ) and V, the travelling wave speed are shown on the nonlinear solitary and periodic waves.

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Bifurcation of Ion-Acoustic Waves in Venus; Lower Ionosphere

  • 会议论文

  • 发表日期：

    2025年

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  • Kusum Chettri,
  • Prasanta Chatterjee,
  • Alireza Abdikian,
  • Asit Saha

摘要

Bifurcation of ion-acoustic waves (IAWs) is studied for the lower ionosphere of Venus. The nonlinear wave solutions in a three-component plasma comprising of two ions \(H^+\) and \(O^+\) with Maxwellian distributed electrons are examined. To obtain the Korteweg-de Vries (KdV) equation, the plasma system is subjected to the reductive perturbation technique (RPT). With the help of a travelling wave transformation, planar dynamical system is formed for the KdV equation. Phase portrait is drawn and the corresponding nonlinear waves are analyzed. The effects of the physical parameters \(\gamma \) ( \(n_{H0}/n_{O0}\) ), the unperturbed number density ratio for ( \(H^+\) ) and ( \(O^+\) ) and V, the travelling wave speed are shown on the nonlinear solitary and periodic waves.