Solitary sound pulses via electron-vortex distribution in partially ionized plasmas

Srinivas, J.; Shukla, P. K.

doi:10.1007/bf00657865

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…However, in practice, the electrons will not have a Maxwellian distribution due to the formation of phase space holes caused by the trapping of electrons in the IA wave potential. Thus, in most space plasmas, the electrons follow a trapped particle distribution when the particles obey the Maxwellian distribution at equilibrium [16,17]. Very recently, some authors [18,19] have studied the complex plasma dynamics by using the vortex-like electron distribution deriving the nonlinear evolution equations by using either a pseudo potential approach or the reductive perturbation technique.…”

Section: Introductionmentioning

confidence: 99%

Electrostatic Solitary Waves in Pair-ion Plasmas with Trapped Electrons

2014

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Electrostatic solitons in an unmagnetized pair-ion plasma comprising adiabatic fluid positive and negative ions and non-isothermal electrons are investigated using both arbitrary and small amplitude techniques. An energy integral equation involving the Sagdeev potential is derived, and the basic properties of large amplitude solitary structures are investigated. Various features of solitons differ in different existence domains. The effects of ion adiabaticity, particle concentration, and resonant electrons on the profiles of Sagdeev potential and corresponding solitary waves are investigated. The generalized Korteweg-de Vries equation with mixed-nonlinearity is derived by expanding the Sagdeev potential. Asymptotic solutions for different orders of nonlinearity are discussed for solitary waves. The present work is applicable to understanding the wave phenomena and associated nonlinear electrostatic perturbations in pair/bi-ion plasmas which may occur in space and laboratory plasmas.

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Section: Introductionmentioning

confidence: 99%

Electrostatic Solitary Waves in Pair-ion Plasmas with Trapped Electrons

2014

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Ion acoustic solitary waves in magneto-rotating plasmas

Ahmad¹

2010

J. Phys. A: Math. Theor.

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Propagation of an ion acoustic wave (IAW) in a magnetized electron-ion plasma, which is rotating around an axis at an angle θ with the direction of magnetic field, is studied by incorporating the effects of trapped and untrapped electron distributions. Employing the perturbation scheme, Korteweg-deVries and Schamel's modified KdV equations are derived for the small angle θ which may support the nonlinear IAW on a slow time scale of ion motion. The amplitude and width of the solitary wave in both cases (trapped and untrapped electrons) have been discussed with the effects of oblique rotation and external magnetic field. It is shown that the nonlinear effects considerably influence the propagation of waves in rotating plasmas.

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Solitary sound pulses via electron-vortex distribution in partially ionized plasmas

Cited by 2 publications

References 4 publications

Electrostatic Solitary Waves in Pair-ion Plasmas with Trapped Electrons

Electrostatic Solitary Waves in Pair-ion Plasmas with Trapped Electrons

Ion acoustic solitary waves in magneto-rotating plasmas

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