Linear and nonlinear properties of electron-acoustic solitary waves with non-thermal electrons |
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| Affiliation: | 1. Arab Academy for Science & Technology and Maritime Transport, Alexandria1029, Egypt;2. Department of Physics, Faculty of Science, Alexandria University, Alexandria 21511, Egypt;1. Department of Physics, Faculty of Science, Alexandria University, P.O. 21511, Alexandria, Egypt;2. Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh;3. Fakultät für Physik und Astronomie, Ruhr-Universittät Bochum, Bochum D-44780, Germany;1. State Key Laboratory of Information Photonics and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;2. School of Information, University of International Business and Economics, Beijing 100029, China |
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| Abstract: | Propagation of linear and nonlinear electron-acoustic waves (EAWs) in an unmagnetized collisionless plasma consisting of a cold electron fluid, non-thermal hot electrons and stationary ions are investigated. The standard normal-mode analysis is used to study the stability condition of linear (EAWs) waves. For nonlinear (EAWs) waves, a reductive perturbation method was employed to obtain a Korteweg–de Vries (KdV) equation for the first-order potential. The effects of a non-thermal distribution of hot electrons on the amplitude, width and energy of electrostatic solitary structures are also discussed. |
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