DOI: 10.1140/epjd/e2009-00279-1
Head-on collision of ion thermal solitary waves in pair-ion plasmas containing charged dust impurities
E.F. El-ShamyTheoretical Physics Group, Physics Department, Faculty of Science, Mansoura University, Damietta-Branch, 34517 New Damietta, Damietta, Egypt
emadel_shamy@hotmail.com
Received 13 July 2009 / Received in final form 29 July 2009 / Published online 6 November 2009
Abstract
In the present research paper, the study of the head-on collision between two ion thermal solitary waves is investigated in a two-fluid (i.e., a pair-ion) plasma consisting of positive and negative ions as well as a fraction of stationary (positively/negatively) charged dust impurities, using the extended Poincaré-Lighthill-Kuo method. The effects of the concentration of charged dust impurities and the positive-to-negative ion temperature ratio on the solitary waves collisions are investigated. It is found that the phase shift is significantly affected by the presence of the positive-to-negative ion temperature ratio and positively/negatively charged dust grains.
52.35.Fp - Electrostatic waves and oscillations.
52.35.Sb - Solitons; BGK modes.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2009
