Ion-Acoustic Shock Waves in Nonextensive Electron-Positron-Ion Plasma
M. Ferdousi1**, S. Yasmin2, S. Ashraf1, A. A. Mamun1
1Department of Physics, Jahangirnagar University, Savar Dhaka-1342, Bangladesh 2Department of Physics, International University of Business Agriculture and Technology, Uttara Dhaka, Bangladesh
Abstract：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.
. [J]. 中国物理快报, 2015, 32(01): 15201-015201.
M. Ferdousi, S. Yasmin, S. Ashraf, A. A. Mamun. Ion-Acoustic Shock Waves in Nonextensive Electron-Positron-Ion Plasma. Chin. Phys. Lett., 2015, 32(01): 15201-015201.
2015, Vol. 32 
