Propagation of cylindrical ion acoustic waves in a plasma with q-nonextensive electrons with nonthermal distribution
Department of Physics, Faculty of Science, Damietta University, P. O. 34517, New Damietta, Egypt
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Accepted: 18 November 2016
Published online: 16 December 2016
The propagation of ion acoustic waves (IAWs) in a cylindrical collisionless unmagnetized plasma, containing ions and electrons is investigated. The electrons are considered to be nonextensive and follow nonthermal distribution. The reductive perturbation technique (RPT) is used to obtain a nonlinear cylindrical Kadomtsev-Petviashvili (CKP) evolution equation. This equation is solved analytically. The effects of plasma parameters on the IAWs characteristics are discussed in details. Both compressive and rarefactive solitons are found to be created in the proposed plasma system. The profile of IAWs is found to depend on the nonextensive and nonthermal parameters. The present study is useful for understanding IAWs in the regions where mixed electron distribution in space, or laboratory plasmas, exist.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2016