Dust acoustic waves potentially originate in a self-gravitating magnetized dusty plasma

Abstract

AbstractThe dynamics of dust acoustic waves (DAWs) in a collision-magnetized dusty plasma are still unclear. To achieve this, we investigate the dynamics of a plasma system consisting of Boltzmann-distributed electrons and ions, and fluid-negative dust particles. The generalized hydrodynamic model of coupled particles is reduced using conventional reductive perturbation theory to a single evolution equation known as the complex Ginzburg-Landau (CGL) equation. Our results show that the energy of rogue waves (RW) is increased by high-energy electrons and decreased by high-energy ions for small polarization parameter. We also observed that the energy of rogue waves increased with decreasing the polarization parameter and the gravitational force coefficient, while increasing dust grain concentration enhances the wave energy. The application of this study to dusty magnetoplasma in space and laboratory plasmas is pointed out.KEYWORDS: Radiation pressurenonlinear dust acoustic rogue waves (DARW)shock-like wavebrigth soliton wave AcknowledgmentsM. S. Afify thanks Prof. Dr. M. E. Innocenti at Ruhr-Universität Bochum for her hospitality and support. The authors appreciate the anonymous referees' insightful criticism, which helped improve the text.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingM. S. Afify would like to thank the Alexander-von-Humboldt Research Fellowship (Bonn, Germany) for its financial support.