Nonplanar ion-acoustic solitary waves with superthermal electrons in warm plasma
- Department of Physics, Ferdowsi University of Mashhad (Iran, Islamic Republic of)
- Department of Physics, Mashhad Branch, Islamic Azad University, Mashhad (Iran, Islamic Republic of)
- Department of Physics, Bojnourd Branch, Islamic Azad University, Bojnourd (Iran, Islamic Republic of)
In this paper, we consider an unmagnetized plasma consisting of warm adiabatic ions, superthermal electrons, and thermal positrons. Nonlinear cylindrical and spherical modified Korteweg-de Vries (KdV) equations are derived for ion acoustic waves by using reductive perturbation technique. It is observed that an increasing positron concentration decreases the amplitude of the waves. Furthermore, the effects of the superthermal parameter (k) on the ion acoustic waves are found.
- OSTI ID:
- 22046878
- Journal Information:
- Physics of Plasmas, Vol. 18, Issue 7; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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