Ion-Acoustic Shock Waves in Nonextensive Electron-Positron-Ion Plasma

作     者：M. Ferdousi S. Yasmin S. Ashraf A. A. Mamun 

作者机构：Department of Physics dahangirnagar University Savar Dhaka-1342 Bangladesh Department of Physics International University of Business Agriculture and Technology Uttara Dhaka Bangladesh 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2015年第32卷第1期

页      面：95-99页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

主　　题：Ion Acoustic Shock Waves in Nonextensive Electron Positron Ion Plasma 

摘      要：A rigorous theoretical investigation is made of ion-acoustic shock structures in an unmagnetized three-component plasma whose constituents are nonextensive electrons, nonextensive positrons, and inertial ions. The Burgers equation is derived by employing the reductive perturbation method. The effects of electron and positron nonextensivity and ion kinematic viscosity on the properties of these ion-acoustic shock waves are briefly discussed. It is found that shock waves with positive and negative potentials are obtained to depend on the plasma parameters. The entailment of our results may be useful to understand some astrophysical and cosmological scenarios including stellar polytropes, hadronic matter and quark-gluon plasma, protoneutron stars, dark-matter halos, etc., where effects of nonextensivity can play significant roles.