Nonlinear periodic and algebraic ion-acoustic solitary waves in a relativistic plasma

Details Nonlinear periodic and algebraic ion-acoustic solitary waves in a relativistic plasma Nonlinear periodic and algebraic ion-acoustic solitary waves in a relativistic plasma

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ap%26ss.198..309n&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 198, no. 2, p. 309-319.

Astronomy and Astrophysics

Astrophysics

Ion Acoustic Waves, Korteweg-Devries Equation, Relativistic Plasmas, Solitary Waves, Boundary Conditions, Debye Length, Periodic Variations, Poisson Equation

Scientific paper

We derive a mixed modified Korteweg-de Vries (MK-dV) equation from a semi-relativistic ion acoustic wave with hot ions by the fluid approximation. The positive cubic nonlinearity of the mixed MK-dV equation give rise to the periodic progressive waves and the algebraic solitary waves. The periodic wave bears a series of solitary pulses, and the algebraic solitary wave reduces the rarefactive solitary wave in the limit of the particular boundary condition. These nonlinear wave modes explain, respectively, the periodic pulse of the potential and the rarefactive solitary wave of the fine structure observed in space.

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