Astrophysics and Space Science

, Volume 355, Issue 2, pp 233–242 | Cite as

Electron acoustic solitons in magneto-rotating electron-positron-ion plasma with nonthermal electrons and positrons

Original Article

Abstract

The propagation of electron acoustic solitary waves (EASWs) in a magneto-rotating electron-positron-ion (epi) plasma containing cold dynamical electrons, nonthermal electrons and positrons obeying Cairns’ distribution have been explored in the stationary background of massive positive ions. Through the linear dispersion relation (LDR) the effects of nonthermal components, magnetic field and rotation have been analyzed, wherein, various limiting cases have been deduced from the LDR. For nonlinear analysis, Korteweg-de Vries (KdV) equation is obtained using the reductive perturbation technique. It is found that in the presence of nonthermal positrons both hump and dip type solitons appear to excite, the structural properties of these solitary waves change drastically with magneto-rotating effects. The present work may be employed to explore and to understand the formation of electron acoustic solitary structures in the space and laboratory plasmas with nonthermal electrons and positrons under magneto-rotating effects.

Keywords

Magneto-rotating electron-positron-ion plasmas Nonthermal electrons and positrons Electron acoustic solitons 

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Theoretical Plasma Physics Group, Department of PhysicsQuaid-i-Azam UniversityIslamabadPakistan
  2. 2.Department of MathematicsQuaid-i-Azam UniversityIslamabadPakistan

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