Study of Nonlinear Stationary Structures of Dust Acoustic Waves(DAW)

Abstract

The effect of steady dust charge and weak magnetic field on small but finite amplitude nonlinear dust acoustic wave in electronegative dusty plasma are investigated. The electronegative plasma constituents are an electron, ions (negative or positive) and negatively charged dust particle. The electrons and ions are Boltzmann. The dynamics of nonlinear wave are governed by a Korteweg- de Vries (KdV) equation that possesses the solitary wave (solitons). Propagation of ion acoustic solitary waves (solitons) in electronegative magnetized dusty plasma in the presence of Maxwellian electron. These constituents support dust acoustic solitary wave (solitons) with the negative potential. The magnetic field is responsible for the dispersive term. The coefficient of the dissipative term depends only on the obliqueness of the magnetic field.