Nonlinear Korteweg-de Vries equation for soliton propagation in relativistic electron-positron-ion plasma with thermal ions

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3481773· OSTI ID:21421242

Saeed, R; Shah, Asif ^[1]; Noaman-ul-Haq, Muhammad ^[2]

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1. Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad 44000 (Pakistan)
2. Optics Laboratories, P.O. Box 1021, Islamabad 44000 (Pakistan)

The nonlinear propagation of ion-acoustic solitons in relativistic electron-positron-ion plasma comprising of Boltzmannian electrons, positrons, and relativistic thermal ions has been examined. The Korteweg-de Vries equation has been derived by reductive perturbation technique. The effect of various plasma parameters on amplitude and structure of solitary wave is investigated. The pert graphical view of the results has been presented for illustration. It is observed that increase in the relativistic streaming factor causes the soliton amplitude to thrive and its width shrinks. The soliton amplitude and width decline as the ion to electron temperature ratio is increased. The increase in positron concentration results in reduction of soliton amplitude. The soliton amplitude enhances as the electron to positron temperature ratio is increased. Our results may have relevance in the understanding of astrophysical plasmas.

• OSTI ID: 21421242
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 10 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
DIFFERENTIAL EQUATIONS
ELECTRON TEMPERATURE
ELECTRONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
ION ACOUSTIC WAVES
ION TEMPERATURE
ION WAVES
KORTEWEG-DE VRIES EQUATION
LEPTONS
MATTER
NONLINEAR PROBLEMS
PARTIAL DIFFERENTIAL EQUATIONS
PERTURBATION THEORY
PLASMA
PLASMA WAVES
POSITRONS
QUASI PARTICLES
RELATIVISTIC PLASMA
SOLITONS