Dust-acoustic shock waves in a charge varying electronegative magnetized dusty plasma with suprathermal electrons

Journal Article · Sat Dec 15 00:00:00 EST 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4773217· OSTI ID:22072684

Tribeche, Mouloud; Bacha, Mustapha ^[1]

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1. Faculty of Sciences-Physics, Theoretical Physics Laboratory (TPL), Plasma Physics Group (PPG), University of Bab-Ezzouar, USTHB, B.P. 32, El Alia, Algiers 16111 (Algeria)

The combined effects of an oblique magnetic field and electron suprathermality on weak dust-acoustic (DA) waves in a charge varying electronegative dusty plasmas with application to the Halley Comet are investigated. The correct suprathermal electron charging current is derived based on the orbit-motion limited approach. A weakly nonlinear analysis is carried out to derive a Korteweg-de Vries-Burger equation. The electron suprathermality, the obliqueness, and magnitude of the magnetic field are found to modify the dispersive properties of the DA shock structure. Our results may aid to explain and interpret the nonlinear oscillations that may occur in the Halley Comet plasma.

• OSTI ID: 22072684
• Journal Information: Physics of Plasmas, Vol. 19, Issue 12; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGED CURRENTS
DUSTS
ELECTRONS
HALLEY COMET
ION ACOUSTIC WAVES
KORTEWEG-DE VRIES EQUATION
MAGNETIC FIELDS
NONLINEAR PROBLEMS
ORBITS
OSCILLATIONS
PLASMA
SHOCK WAVES