Oblique Propagation of Dissipative Ion-Acoustic Solitary Waves in a Magnetized Viscous Plasma With \kappa -Gurevich Distributed Electrons

In this article, oblique propagation of coherent and dissipative ion-acoustic solitary waves (IASWs) in the presence of \kappa -Gurevich distributed electrons in two-component magnetized viscous plasma is investigated. Therefore, a new \kappa -Gurevich distribution function describing the evolution of adiabatically trapped suprathermal electrons is outlined. Using the properties of hypergeometric functions, the associated electron density is given in a simple form. The modified Burger KdV-like equation and its appropriate analytical solutions, with \kappa -Gurevich electron density, are also illustrated. Numerical results reveal that the main properties (wave profile, electric field, and transported energy) of ion-acoustic solitons (IASs) and ion-acoustic shock waves (IASWs) are significantly affected by the intrinsic plasma parameters such as the adiabatically trapped suprathermal electron parameter, obliquity, external magnetic field, and viscosity. In particular, the suprathermality of adiabatically trapped electrons makes the IASW profile larger and steeper. Moreover, an increase in the external magnetic field magnitude increases (slightly decreases) the amplitude (width) of IASWs. In addition, the electric field associated with IASWs, which adopt a localized profile, is stronger for high propagation angles, intense magnetic fields, and strong viscosity.