Nonplanar converging and diverging shock waves in the presence of thermal ions in electron-positron plasma

Shah, Asif; Saeed, Rostam K.; Noaman-ul-Haq, Muhammad

doi:10.1063/1.3457928

Cited by 17 publications

(10 citation statements)

References 33 publications

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“…A very useful research work concerning the studies of electron-positron-ion (epi) plasmas has already appeared in literature. [6][7][8][9][10][11] However, most of the previous studies of soliton propagation in electron-positron plasmas are considering the plasma to be non-relativistic, but for plasma with particles having streaming speeds of the order of speed of light, the relativistic effects must be taken into account for its accurate analysis. Relativistic plasmas occur in space plasma phenomena such as, plasma sheet boundary layer of earth's magnetosphere, Van Allen radiation belts, and laser-plasma interaction experiments.…”

Section: Introductionmentioning

confidence: 99%

Kadomtsev-Petviashvili solitons propagation in a plasma system with superthermal and weakly relativistic effects

et al. 2011

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Two dimensional (2D) solitons are studied in a plasma system comprising of relativistically streaming ions, kappa distributed electrons, and positrons. Kadomtsev-Petviashvili (KP) equation is derived through the reductive perturbation technique. Analytical solution of the KP equation has been studied numerically and graphically. It is noticed that kappa parameters of electrons and positrons as well as the ions relativistic streaming factor have an emphatic influence on the structural as well as propagation characteristics of two dimensional solitons in the considered plasma system. Our results may be helpful in the understanding of soliton propagation in astrophysical and laboratory plasmas, specifically the interaction of pulsar relativistic wind with supernova ejecta and the transfer of energy to plasma by intense electric field of laser beams producing highly energetic superthermal and relativistic particles [L. Arons, Astrophys. Space Sci.

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Section: Introductionmentioning

confidence: 99%

Kadomtsev-Petviashvili solitons propagation in a plasma system with superthermal and weakly relativistic effects

et al. 2011

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“…[12][13][14] Recently, using Maxwellian assumption, many researchers studied the nonlinear propagation of ion acoustic waves in e-p-i plasmas. 15,16 The study of nonlinear propagation of radiation in e-p plasmas is important because of high effective temperatures of pulsar radio emission 17 and a feasible source of the large frequency shifts in such emissions. 18 Based on the space plasma observation, 6 and theoretical investigations, 19,20 one can easily guess the presence of ion and electron populations that are far away from their thermodynamic equilibrium.…”

Section: Introductionmentioning

confidence: 99%

Dynamic behavior of ion acoustic waves in electron-positron-ion magnetoplasmas with superthermal electrons and positrons

2014

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The dynamic behavior of ion acoustic waves in electron-positron-ion magnetoplasmas with superthermal electrons and positrons has been investigated in the framework of perturbed and non-perturbed Kadomtsev-Petviashili (KP) equations. Applying the reductive perturbation technique, we have derived the KP equation in electron-positron-ion magnetoplasma with kappa distributed electrons and positrons. Bifurcations of ion acoustic traveling waves of the KP equation are presented. Using the bifurcation theory of planar dynamical systems, the existence of the solitary wave solutions and the periodic traveling wave solutions has been established. Two exact solutions of these waves have been derived depending on the system parameters. Then, using the Hirota's direct method, we have obtained two-soliton and three-soliton solutions of the KP equation. The effect of the spectral index κ on propagations of the two-soliton and the three-soliton has been shown. Considering an external periodic perturbation, we have presented the quasi periodic behavior of ion acoustic waves in electron-positron-ion magnetoplasmas.

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“…By employing the pseudopotential (Sagdeev potential) approach, the authors in ref. [17][18][19][20] Several space and astrophysical regimes, like Mercury, Saturn, solar wind, and earth magnetospheres, [21,22] contain high-energy particles with distribution functions having non-Maxwellian superthermal tails. The oblique propagation of small amplitude ion acoustic solitary profiles in a magnetized two-dimensional rotating three-component e-p-i plasmas have also been analysed, [10] and the non-linear Zakharov-Kuznetsov (ZK) equation was derived using the reductive perturbation method.…”

Section: Introductionmentioning

confidence: 99%

Dissipative ion acoustic solitary waves in collisional, magneto‐rotating, non‐thermal electron–positron–ion plasma

Farooq

Ahmad

Qasim

2018

Contributions to Plasma Physics

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The linear and non-linear dynamics of ion acoustic waves are investigated in three-component magnetized plasma consisting of cold inertial ions and non-thermal electrons and positrons. The non-thermal components are modelled by the hybrid distribution, representing the combination of two (kappa and Cairn's) non-thermal distributions. The relevant processes, including the slow rotation of plasma along the magnetic field axis and collision between ions and neutrals, are taken into consideration. It is shown that the non-linear dynamics of the considered system are governed by the Zakharov-Kuznetsov equation in modified form. In the general dissipation regime, the effects of the two non-thermal distributions on the solitary waves are compared. The effects of other plasma parameters, such as collisional and rotational frequency, are also discussed in detail. KEYWORDS Damped Zakharov-Kuznetsov Equation, Dissipative ion acoustic solitary waves, electron-positron-ion plasma 1

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Nonplanar converging and diverging shock waves in the presence of thermal ions in electron-positron plasma

Cited by 17 publications

References 33 publications

Kadomtsev-Petviashvili solitons propagation in a plasma system with superthermal and weakly relativistic effects

Kadomtsev-Petviashvili solitons propagation in a plasma system with superthermal and weakly relativistic effects

Dynamic behavior of ion acoustic waves in electron-positron-ion magnetoplasmas with superthermal electrons and positrons

Dissipative ion acoustic solitary waves in collisional, magneto‐rotating, non‐thermal electron–positron–ion plasma

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