Nonlinear Ion-Acoustic Waves in Gravitating Dusty Plasma with Non-Isothermal Electrons and Fluctuating Dust Charges

• Authors: S. Paul , G. Pakira , B. Paul , B. Ghosh
• Languages of publication: EN

Abstracts

EN

Using the reductive perturbation method a theoretical infrastructure has been developed to study the nonlinear propagation of ion-acoustic waves in self-gravitating multicomponent dusty plasma consisting of positive ions, non-isothermal electrons and negatively charged warm dust particles with fluctuating dust charges and drifting motion. It is shown that instead of coupled nonlinear equations as obtained by earlier authors the nonlinear propagation of ion-acoustic waves in such a plasma can be described by an uncoupled third order partial differential equation which is a modified form of the Korteweg-de Vries equation. From this equation, quasi-soliton solution is obtained for the ion-acoustic wave. The effects of non-isothermal electrons, gravity, dust charge fluctuations and drifting motion on the ion-acoustic solitary waves are discussed with application in astrophysical contexts. The importance of the model considered here has also been pointed out.

Keywords

EN

52.27.Lw; 52.35.Fp; 04.40.-b

Discipline

• 04.40.-b: Self-gravitating systems; continuous media and classical fields in curved spacetime
• 52.27.Lw: Dusty or complex plasmas; plasma crystals
• 52.35.Fp: Electrostatic waves and oscillations (e.g., ion-acoustic waves)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 1
• Pages: 116-121

Dates

published

2012-07

received

2011-12-14

(unknown)

2012-04-04

(unknown)

2012-04-12

Contributors

author

S. Paul

• Department of Physics, Jadavpur University, Kolkata-700 032, India

author

G. Pakira

• Department of Physics, Sripat Sing College, Jiaganj, Murshidabad, W.B., India

author

B. Paul

• Department of Physics, Jadavpur University, Kolkata-700 032, India

author

B. Ghosh

• Department of Physics, Jadavpur University, Kolkata-700 032, India

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Identifiers

DOI

10.12693/APhysPolA.122.116