Arbitrary Amplitude Dust-acoustic Solitary Structures in a Three-component Dusty Plasma

Details Arbitrary Amplitude Dust-acoustic Solitary Structures in a Three-component Dusty Plasma Arbitrary Amplitude Dust-acoustic Solitary Structures in a Three-component Dusty Plasma

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ap%26ss.268..443m&link_type=abstract

Astrophysics and Space Science, v. 268, Issue 4, p. 443-454 (1999).

Astronomy and Astrophysics

Astrophysics

57

Scientific paper

A rigorous theoretical investigation has been made of arbitrary amplitude dust-acoustic solitary structures in an unmagnetized three-component dusty plasma whose constituents are an inertial charged dust fluid and Boltzmann distributed ions and electrons. The pseudo-potential approach and the reductive perturbation technique are employed for this study. It is found from both weakly and highly nonlinear analyses that the dusty plasma model can support solitary waves only with negative potential but not with positive potential. The effects of equilibrium free electron density and its temperature on these solitary structures are discussed. The implications of these results to some astrophysical and space plasma systems, especially to planetary ring-systems and cometary tails, are briefly mentioned.

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