Ion acoustic solitary waves in a weakly relativistic plasma with q-nonextensive electrons and thermal positrons

Details Ion acoustic solitary waves in a weakly relativistic plasma with q-nonextensive electrons and thermal positrons Ion acoustic solitary waves in a weakly relativistic plasma with q-nonextensive electrons and thermal positrons

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ap%26ss.334..337p&link_type=abstract

Astrophysics and Space Science, Volume 334, Issue 2, pp.337-343

Astronomy and Astrophysics

Astrophysics

2

Ion Acoustic Solitary Waves, Nonextensive Electrons

Scientific paper

Nonlinear ion acoustic solitary waves (IASWs) are addressed in a weakly relativistic plasma consisting of cold ion fluid, q-nonextensive electron velocity distribution and Boltzmann distributed positron. The Korteweg-de Vries- (KdV) equation is derived by reductive perturbation method. We investigate the effect of nonextensive electrons on solitary waves in this medium. It is found that only compressive solitons can be appeared in the existence of nonextensive electrons. It is shown that the structure of soliton depend sensitively on the q-nonextensive parameter.

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