Obliquely propagating nonextensive dust-ion-acoustic solitary waves in a dusty magnetoplasma

Abstract

The basic features of obliquely propagating dust-ion-acoustic (DIA) solitary waves (SWs) in a nonextensive magnetized dusty plasma (containing non-extensive electrons, inertial ions, and negatively charged stationary dust) have been rigorously investigated. The reductive perturbation method has been employed to derive the Korteweg-de Vries equation which admits a solitary wave solution. The combined effects of electron nonextensivity and external magnetic field (obliqueness), which are found to significantly modify the basic features of the small but finite-amplitude DIA SWs, have explicitly been examined. Our present analysis can be utilized and very effective for understanding the localized nonlinear structures-the DIA SWs in different astrophysical and cosmological scenarios (viz. stellar polytropes, quark-gluon plasma, protoneutron stars, etc.).