1. Oblique Interaction of Dust-ion Acoustic Solitons with Superthermal Electrons in a Magnetized Plasma
- Author
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Mahmood Shahzad, Adnan Muhammad, Parveen Shahida, and Qamar Anisa
- Subjects
Physics ,Dusty plasma ,Polarity symbols ,General Physics and Astronomy ,Electron ,Plasma ,01 natural sciences ,Charged particle ,010305 fluids & plasmas ,Pulse (physics) ,Nonlinear Sciences::Exactly Solvable and Integrable Systems ,Physics::Plasma Physics ,0103 physical sciences ,Soliton ,Atomic physics ,010306 general physics ,Korteweg–de Vries equation ,Nonlinear Sciences::Pattern Formation and Solitons - Abstract
The oblique interaction between two dust-ion acoustic (DIA) solitons travelling in the opposite direction, in a collisionless magnetized plasma composed of dynamic ions, static dust (positive/negative) charged particles and interialess kappa distributed electrons is investigated. By employing extended Poincare–Lighthill–Kuo (PLK) method, Korteweg–de Vries (KdV) equations are derived for the right and left moving low amplitude DIA solitons. Their trajectories and corresponding phase shifts before and after their interaction are also obtained. It is found that in negatively charged dusty plasma above the critical dust charged to ion density ratio the positive polarity pulse is formed, while below the critical dust charged density ratio the negative polarity pulse of DIA soliton exist. However it is found that only positive polarity pulse of DIA solitons exist for the positively charged dust particles case in a magnetized nonthermal plasma. The nonlinearity coefficient in the KdV equation vanishes for the ne...
- Published
- 2018