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Propagation of nonlinear coherent structures in a collisional magnetoplasma with nonthermal electrons and finite ion temperature

Masood, W. ; Rizvi, H. ; Imtiaz, N.

Physics of Plasmas, January 2012, Vol.19(1) [Periódico revisado por pares]

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  • Título:
    Propagation of nonlinear coherent structures in a collisional magnetoplasma with nonthermal electrons and finite ion temperature
  • Autor: Masood, W. ; Rizvi, H. ; Imtiaz, N.
  • Assuntos: Articles
  • É parte de: Physics of Plasmas, January 2012, Vol.19(1)
  • Descrição: Nonlinear electrostatic waves in dissipative magnetized electron-ion (e-i) plasmas are investigated employing the two fluid model. In this regard, Zakharov Kuznetsov Burgers (ZKB) equation is derived using the small amplitude perturbation expansion method. It is observed that the nonthermal electron population, obliqueness, ion thermal effects, and kinematic viscosity significantly alter the structure of obliquely propagating nonlinear ion acoustic shock waves in dissipative e-i magnetoplasmas. It is observed that the system can admit both compressive and rarefactive shocks. The condition for the formation of both types of shocks is also given. The present study may be useful to understand the nonlinear propagation characteristics of electrostatic shock structures in space environments where the nonthermal electrons have been observed by various satellite missions such as Voyager and Freja.
  • Idioma: Inglês

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