Solitary and blow-up electrostatic excitations in rotating magnetized electron-positron-ion plasmas

W.M. Moslem, R. Sabry, U.M. Abdelsalam, I. Kourakis, P.K. Shukla

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The nonlinear dynamics of a rotating magnetoplasma consisting of electrons, positrons and stationary positive ions is considered. The basic set of hydrodynamic and Poisson equations are reduced to a Zakharov-Kuznetsov (ZK) equation for the electric potential. The ZK equation is solved by applying an improved modified extended tanh-function method (2008 Phys. Lett. A 372 5691) and its characteristics are investigated. A set of new solutions are derived, including localized solitary waves, periodic nonlinear waveforms and divergent (explosive) pulses. The characteristics of these nonlinear excitations are investigated in detail.
Original languageEnglish
Article number033028
Number of pages16
JournalNew Journal of Physics
Publication statusPublished - 25 Mar 2009


  • coriolis force
  • wave propagation
  • pulsars
  • amplitude
  • modes
  • electrostatic excitations
  • magnetoplasma

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