A new equation in two dimensional fast magnetoacoustic shock waves in electron-positron-ion plasmas

Journal Article · Mon Mar 15 04:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3322885· OSTI ID:21347178

Masood, W ^[1]; Jehan, Nusrat; Mirza, Arshad M ^[2]

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1. Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad 54000 (Pakistan)
2. Department of Physics, Theoretical Plasma Physics Group, Quaid-i-Azam University, Islamabad 45320 (Pakistan)

Nonlinear properties of the two dimensional fast magnetoacoustic waves are studied in a three-component plasma comprising of electrons, positrons, and ions. In this regard, Kadomtsev-Petviashvili-Burger (KPB) equation is derived using the small amplitude perturbation expansion method. Under the condition that the electron and positron inertia are ignored, Burger-Kadomtsev-Petviashvili (Burger-KP) for a fast magnetoacoustic wave is derived for the first time, to the best of author's knowledge. The solutions of both KPB and Burger-KP equations are obtained using the tangent hyperbolic method. The effects of positron concentration, kinematic viscosity, and plasma beta are explored both for the KPB and the Burger-KP shock waves and the differences between the two are highlighted. The present investigation may have relevance in the study of nonlinear electromagnetic shock waves both in laboratory and astrophysical plasmas.

• OSTI ID: 21347178
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 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
ASTROPHYSICS
CHARGED PARTICLES
ELECTRONS
ELEMENTARY PARTICLES
FAST MAGNETOACOUSTIC WAVES
FERMIONS
HYDROMAGNETIC WAVES
IONS
LEPTONS
MAGNETOACOUSTIC WAVES
MATTER
NONLINEAR PROBLEMS
PHYSICS
PLASMA
POSITRONS
SHOCK WAVES
TWO-DIMENSIONAL CALCULATIONS