Obliquely propagating electron acoustic solitons in magnetized plasmas with nonextensive electrons

Abstract

The problem of small amplitude electron-acoustic solitary waves (EASWs) is discussed using the reductive perturbation theory in magnetized plasmas consisting of cold electrons, hot electrons obeying nonextensive distribution and stationary ions. The presented investigation shows that the presence of nonextensive distributed hot electrons (due to the effects of long-range interactions) causes a reduction in the soliton amplitude while its width increases. The effects of the population ratio of hot to cold electrons and also the effects of the presence of magnetic field in this situation are also discussed

Effect of nonextensivity on the characteristics of supersolitons in a two‐temperature electron plasma

“…Even, Tsallis nonextensive formalism provides the missing link for Kappa distribution from fundamental physics . A good number of research works with q ‐nonextensive particle distribution to study the solitary structures and double layers in both magnetized and unmagnetized space plasmas have been devoted in the recent years. The basic features of the ion‐acoustic solitons and double layers are found to be significantly modified in the presence of nonextensive electrons enabling a good fit between theory and experiment in the context of astrophysical and space plasmas .…”

“…A good number of research works with q ‐nonextensive particle distribution to study the solitary structures and double layers in both magnetized and unmagnetized space plasmas have been devoted in the recent years. The basic features of the ion‐acoustic solitons and double layers are found to be significantly modified in the presence of nonextensive electrons enabling a good fit between theory and experiment in the context of astrophysical and space plasmas . Recently, Saini et al studied dust kinetic Alfven solitary waves and dust kinetic Alfven rogue waves in an electron depleted dusty plasma with two‐temperature nonextensive ions for the first time by using reductive perturbation method, which may provide a deeper insight to understand the nonlinear coherent structures in the Saturn's F‐ring in the background of nonextensive distribution .…”

“…The basic features of the ion-acoustic solitons and double layers are found to be significantly modified in the presence of nonextensive electrons enabling a good fit between theory and experiment in the context of astrophysical and space plasmas. [34][35][36][37][38][39][40] Recently, Saini et al studied dust kinetic Alfven solitary waves and dust kinetic Alfven rogue waves in an electron depleted dusty plasma with two-temperature nonextensive ions for the first time by using reductive perturbation method, which may provide a deeper insight to understand the nonlinear coherent structures in the Saturn's F-ring in the background of nonextensive distribution. [41] Later, the effect of polarization force on the above-mentioned nonlinear structures was reported in a dusty plasma considering nonextensive electrons and ions.…”

Oblique Propagation of Nonlinear Solitary Waves in Magnetized Plasma with Nonextensive Electrons

“…They further showed that with the increase in magnetic field, the soliton electric field amplitude increases while the soliton width and pulse duration decreases. The properties of small amplitude wave in magnetized plasma are investigated by Pakzad and Javidan [19]. They observed both rarefactive and compressive solitons whose profiles become narrower with the application of stronger magnetic fields.…”

Localized waves in plasmas at varying magnetic field

“…During this times, a huge number of researches have been presented. Authors have investigated properties of linear and nonlinear localized waves in coupled magnetized and unmagnetized plasmas containing variety of components with different distribution functions [4,5,6,7] . Meanwhile there has been reported several experimental tests and observations proving the existence of solitary waves and shock profiles in laboratory and astrophysical (and atmospheric) plasmas [8,9,10,11,12,13].…”