Ion acoustic solitons in unmagnetized inhomogeneous multi-ion component plasmas with vortex distributed electrons

Journal Article · Mon Nov 15 04:00:00 EST 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3518098· OSTI ID:21531975

Shah, Asif; Mahmood, S; Haque, Q ^[1]

---

1. Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad 44000 (Pakistan)

The ion acoustic solitons are studied in an inhomogeneous multi-ion component plasma in the presence of heavy and light adiabatic ions and two temperature electrons with vortex distribution. The modified Korteweg-de Vries equation with an additional term due to density gradients is derived by employing reductive perturbation technique. It is found that the amplitude of the soliton enhances as the concentration ratio of cold to hot electrons, density gradient parameter and ion temperature are increased in the system. The effects of mass, charge ratios of heavy to light ions and electron temperature are also investigated on the structural as well as propagation characteristics of solitary wave. The equilibrium density profile is taken to be exponential. The phase velocity of ion acoustic wave is also studied as a function of various plasma parameters. The numerical results are presented for illustration.

• OSTI ID: 21531975
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DIFFERENTIAL EQUATIONS
ELECTRON TEMPERATURE
ELECTRONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
INHOMOGENEOUS PLASMA
ION ACOUSTIC WAVES
ION TEMPERATURE
ION WAVES
KORTEWEG-DE VRIES EQUATION
LEPTONS
PARTIAL DIFFERENTIAL EQUATIONS
PHASE VELOCITY
PLASMA
PLASMA DENSITY
PLASMA WAVES
QUASI PARTICLES
SOLITONS
VELOCITY
VORTICES