Roles of Superthermal Electrons and Adiabatic Heavy Ions on Heavy-Ion-Acoustic Solitary and Shock Waves in a Multi-Component Plasma

作     者：M.G.Shah M.M.Rahman M.R.Hossen A.A.Mamun 

作者机构：Department of Physics Jahangirnagar University Department of Natural Sciences Daffodil International University 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2015年第64卷第8期

页      面：208-214页

核心收录：

学科分类：07[理学] 08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 070204[理学-等离子体物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Ministry of Science and technology (Bangladesh) 

主　　题：heavy-ion acoustic waves superthermality adiabatic 

摘      要：Heavy-ion-acoustic(HIA) waves in an unmagnetized collisionless plasma system comprising superthermal electrons, Boltzmann distributed light ions, and adiabatic positively charged inertial heavy ions have been investigated both numerically and analytically. The well-known reductive perturbation method has been used to derive the Kortewegde Vries(K-d V) and Burgers(BG) equations. The parametric regimes for the existence of both the positive and negative solitary and shock waves have been obtained. The effects of adiabaticity of heavy ions and superthermality of electrons,which are found to notably modify the fundamental features(viz. polarity, amplitude, phase speed, etc.) of HIA solitary and shock waves, are precisely studied. The results of our theoretical investigation can be applicable to understand the characteristics and basic nonlinear structures of HIA waves both in space and laboratory plasma situations.