Dust-acoustic wave modulation in the presence of q-nonextensive electrons and/or ions in dusty plasma

A study is presented of the nonlinear self-modulation of low-frequency electrostatic dust acoustic waves (DAWs) propagating in a dusty plasma, within the theoretical framework of the nonextensive statistics proposed by Tsallis. Using the reductive perturbation method (RPM), the nonlinear Schrödinger...

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Bibliographic Details
Published in:Astrophysics and space science 2013-02, Vol.343 (2), p.621-628
Main Authors: Bains, A. S., Tribeche, M., Ng, C. S.
Format: Article
Language:English
Subjects:
Acoustics
Astrobiology
Astronomy
Astrophysics
Astrophysics and Astroparticles
Cosmology
Dust
Dusty plasmas
Electrons
Ion distribution
Ions
Modulation
Nonlinearity
Observations and Techniques
Original Article
Perturbation methods
Physics
Physics and Astronomy
Plasma
Schroedinger equation
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Statistics
Wave power
Wave propagation
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Summary:A study is presented of the nonlinear self-modulation of low-frequency electrostatic dust acoustic waves (DAWs) propagating in a dusty plasma, within the theoretical framework of the nonextensive statistics proposed by Tsallis. Using the reductive perturbation method (RPM), the nonlinear Schrödinger equation (NLSE) which governs the modulational instability (MI) of the DAWs is obtained. The presence of the nonextensive electron/ion distribution is shown to influence the MI of the waves. Furthermore it is observed that nonextensive distributed ions has more effect on the MI of the DAW than electrons.
ISSN:0004-640X
1572-946X
DOI:10.1007/s10509-012-1264-6