Evolution of ion-acoustic solitary waves in Maxwellian dusty plasmas

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3526337· OSTI ID:21532136

Das, G C ^[1]; Choudhury, Balen; Bora, M P ^[2]

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1. Institute of Advanced Studies in Science and Technology, Guwahati 781035 (India)
2. Department of Physics, Gauhati University, Guwahati 781014 (India)

The nonlinear wave phenomena in the vicinity of Korteweg-de Vries (KdV) equation have been derived to study the salient features of solitons in a complex plasma consisting of Maxwellian electrons, ions, and cold dust with the effect of dust charge fluctuation. The reductive perturbation method has been applied to the dynamical system causeway and the derived KdV equation predicts different natures of solitons in complex plasma. The dynamics of the soliton propagation in the considered plasma constituents in ionospheric auroral regions exhibits rarefactive solitons, which is an interesting feature. The dust charge fluctuation by the increasing impact of electrons leads the nonlinear effect to be tending to zero. Because of which, the formation of a narrow solitary wave packet with the generation of high energy becomes possible and results in the phenomena of soliton radiation. In order to probe this further, we derive a modified KdV equation to study soliton propagation which, in turn, indicates the possibility of the shock formation in solitary waves.

• OSTI ID: 21532136
• Journal Information: Physics of Plasmas, Vol. 17, Issue 12; Other Information: DOI: 10.1063/1.3526337; (c) 2010 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DUSTS
ELECTRONS
FLUCTUATIONS
ION ACOUSTIC WAVES
IONS
KORTEWEG-DE VRIES EQUATION
NONLINEAR PROBLEMS
PERTURBATION THEORY
PLASMA
SHOCK WAVES
SOLITONS
WAVE PACKETS
CHARGED PARTICLES
DIFFERENTIAL EQUATIONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
ION WAVES
LEPTONS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA WAVES
QUASI PARTICLES
VARIATIONS