TITLE

Ion acoustic waves in pair-ion plasma: Linear and nonlinear analyses

AUTHOR(S)
Saeed, R.; Mushtaq, A.
PUB. DATE
March 2009
SOURCE
Physics of Plasmas;Mar2009, Vol. 16 Issue 3, p032307
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Linear and nonlinear properties of low frequency ion acoustic wave (IAW) in pair-ion plasma in the presence of electrons are investigated. The dispersion relation and Kadomtsev–Petviashvili equation for linear/nonlinear IAW are derived from sets of hydrodynamic equations where the ion pairs are inertial while electrons are Boltzmannian. The dispersion curves for various concentrations of electrons are discussed and compared with experimental results. The predicted linear IAW propagates at the same frequencies as those of the experimentally observed IAW if ne0∼104 cm-3. It is found that nonlinear profile of the ion acoustic solitary waves is significantly affected by the percentage ratio of electron number density and temperature. It is also determined that rarefactive solitary waves can propagate in this system. It is hoped that the results presented in this study would be helpful in understanding the salient features of the finite amplitude localized ion acoustic solitary pulses in a laboratory fullerene plasma.
ACCESSION #
37258867

 

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