| Institution: | 1. Space and Plasma Astrophysics Research Group (SPAR), Department of Physics, COMSATS University Islamabad, Lahore, Pakistan;2. Department of Physics, Quaid-i-Azam University, Islamabad, Pakistan
University of Wah, Wah Cantt, Pakistan;3. Department of Applied Mathematic, University of Calcutta, Kolkata, India;4. Department of Physics, Quaid-i-Azam University, Islamabad, Pakistan;5. School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, Pakistan |
| Abstract: | A theoretical model is presented to study the characteristics of dust acoustic shock in a viscous, magnetized, rotating dusty plasma at both fast and slow time scales. By employing the reductive perturbation technique, the non-linear Zakharov–Kuznetsov–Burger (ZKB) equation is derived for both cases when the dust is inactive and dynamic (fast and slow time scales). Both electrons and ions are considered to follow the kappa/Cairns distribution. It is observed that in both cases, i.e. when dust is in the background and active, viscosity plays a key role in dissipation for the propagation of acoustic shock. Magnetic field and rotation are responsible for the dispersive term. Superthermality is found to affect significantly the formation of the shock wave along with viscous nature of plasma, whereas the dust charge affects the non-linear coefficient of the ZKB equation. The present investigation may be beneficial to the understanding of the rotating plasma, in particular the experiments being carried out. |
