Large amplitude solitary waves in a warm magnetoplasma with kappa distributed electrons

Abstract

The large amplitude nonlinear ion acoustic solitary wave propagating obliquely to an external magnetic field in a magnetized plasma with kappa distributed electrons and warm ions is investigated through deriving energy-balance-like expression involving a Sagdeev potential. Analytical and numerical calculations of the values of Mach number reveal that both of subsonic and supersonic electrostatic solitary structures can exist in this system. The influence on the soliton characteristics of relevant physical parameters such as the Mach number, the superthermal parameter, the directional cosine, the ratio of ion-to-electron temperature, and the ion gyrofrequency has been investigated. V

Multi‐dimensional instability of electrostatic solitary waves in a warm multi‐ion dust plasma

“…[ 41 ] The large amplitude IAWs obliquely propagating to an external magnetic field are investigated through a Sagdeev potential in a magnetized plasma with warm ions and kappa distributed electrons. [ 42 ] The feature of the electron kappa distribution was investigated in generation of parallel propagating whistler waves by adopting fully particle‐in‐cell simulations. [ 43 ] Ion‐acoustic cnoidal waves were studied in plasmas with kappa distributed electrons and positrons as well as warm ions.…”

Effects of superthermality and positron concentration on kinetic Alfvénic double layers in a low-β electron-positron-ion plasma

“…For example, Lakhina and Singh [37] have investigated ion-acoustic solitons and DLs in a three component plasma comprising fluid ions, α particles, and superthermal electrons having kappa distribution. By using the same distribution, El-Tantawy et al [38] examined solitary waves in warm magnetoplasma.…”