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<p>The nonlinear propagation characteristics of ion-acoustic shock waves (IASHWs) are examined utilizing a plasma model that consists of a degenerate (Fermi) of positrons and electrons, along with relativistic positive and negative ions. The Korteweg–de Vries Burgers (KdVB) equation is formulated through the reductive perturbation method (RPM) to analyze its solitary solution. A numerical analysis of the IASHWs has been conducted to investigate the influence of plasma parameters on the phase velocity and the dynamics of shock waves. Factors such as the relativistic factor, density and mass of negative ions, as well as the temperature of the Fermi positrons and electrons, are evaluated. The findings of this research can be utilized in dense plasma applications in technology and astrophysics, including scenarios involving magnetar coronae and white dwarfs.</p>

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Nonlinear dynamics of strongly relativistic ion acoustic shock waves in a multicomponent plasmas

  • 期刊论文

  • 发表日期：

    2026年7月26日

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  • Ranjan Das

摘要

The nonlinear propagation characteristics of ion-acoustic shock waves (IASHWs) are examined utilizing a plasma model that consists of a degenerate (Fermi) of positrons and electrons, along with relativistic positive and negative ions. The Korteweg–de Vries Burgers (KdVB) equation is formulated through the reductive perturbation method (RPM) to analyze its solitary solution. A numerical analysis of the IASHWs has been conducted to investigate the influence of plasma parameters on the phase velocity and the dynamics of shock waves. Factors such as the relativistic factor, density and mass of negative ions, as well as the temperature of the Fermi positrons and electrons, are evaluated. The findings of this research can be utilized in dense plasma applications in technology and astrophysics, including scenarios involving magnetar coronae and white dwarfs.