Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Ion-acoustic solitary waves in a dense pair-ion plasma containing degenerate electrons and positrons

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 0375-9601

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

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.

Item type: Article
ID code: 19646
Keywords: warm multicomponent plasma, solitons, generation, beam, Plasma physics. Ionized gases
Subjects: Science > Physics > Plasma physics. Ionized gases
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 04 Jun 2010 09:47
    Last modified: 06 Dec 2013 22:05
    URI: http://strathprints.strath.ac.uk/id/eprint/19646

    Actions (login required)

    View Item