Arbitrary amplitude ion acoustic solitary waves in the presence of adiabatically heated ions and immobile dust in magnetized plasmas

Journal Article · Wed Aug 15 04:00:00 EDT 2007 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2754623· OSTI ID:21072622

Mahmood, S; Hussain, S ^[1]

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1. Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad 45320 (Pakistan)

Arbitrary amplitude ion acoustic solitary waves in the presence of adiabatically heated ions and immobile dust are investigated in magnetized plasmas. It is found that ion density humps are formed in the subsonic as well as in the supersonic regime depending on the immobile dust density. The ion acoustic solitary wave amplitude is reduced and the width of the structure is broadened with the increase in the immobile dust density. The increase in the ion temperature decreases the wave amplitude in magnetized dusty plasmas. The wave amplitude is increased with the increase in the obliqueness of the wave and the Mach number in both the subsonic and supersonic regions. It is also found that ion acoustic solitary humps and kink-type solitons can coexist only in the supersonic region. The amplitude of the kink-type solitary structure is reduced with the increase in the immobile dust density, and the nonlinear structure becomes less steepened. The numerical results are also presented. The limiting cases of magnetized electron-ion plasmas with hot and cold ions are discussed and flaws in the earlier published work are also pointed out.

• OSTI ID: 21072622
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 14; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
DUSTS
ELECTRON TEMPERATURE
ELECTRONS
ION ACOUSTIC WAVES
ION DENSITY
ION TEMPERATURE
IONS
MACH NUMBER
NONLINEAR PROBLEMS
PLASMA
PLASMA DENSITY
SOLITONS