Abdelsalam, U.M. and Moslem, W.M. and Shukla, P.K. (2008) Ion-acoustic solitary waves in a dense pair-ion plasma containing degenerate electrons and positrons. Physics Letters A, 372 (22). pp. 4057-4061. ISSN 0375-9601Full text not available in this repository. (Request a copy from the Strathclyde author)
Fully nonlinear propagation of ion-acoustic solitary waves in a collisionless dense/quantum electron-positron-ion plasma is investigated. The electrons and positrons are assumed to follow the Thomas-Fermi density distribution and the ions are described by the hydrodynamic equations. An energy balance-like equation involving a Sagdeev-type pseudo-potential is derived. Finite amplitude solutions are obtained numerically and their characteristics are discussed. The small-but finite-amplitude limit is also considered and an exact analytical solution is obtained. The present studies might be helpful to understand the excitation of nonlinear ion-acoustic solitary waves in a degenerate plasma such as in superdense white dwarfs.
|Keywords:||warm multicomponent plasma, solitons, generation, beam, Plasma physics. Ionized gases, Physics and Astronomy(all)|
|Subjects:||Science > Physics > Plasma physics. Ionized gases|
|Department:||Faculty of Science > Physics|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||04 Jun 2010 08:47|
|Last modified:||04 May 2016 15:16|