Influence of suprathermality on the obliquely propagating dust-acoustic solitary waves in a magnetized dusty plasma

Abstract

Dust-acoustic (DA) solitary waves are investigated in a magnetized dusty plasma comprising cold dust fluid and kappa-distributed ions and/or electrons. The influence of suprathermal particles, obliqueness, and ion temperature on the DA solitary waves is investigated. We find that only negative DA solitary waves will be excited in this model. Also it is shown that the amplitude of the DA solitary wave decreases with deviation of electrons or ions from Maxwellian distribution via decrease of κ e or κ i . The effect of the temperature of the ion decreases with the amplitude and steepness of the solitary wave front.