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Ion‐ and positron‐acoustic solitons in magnetized dusty plasma with q ‐non‐extensive electron and positron velocity distribution
Author(s) -
Motevalli S.M.,
Mohsenpour T.,
Dashtban N.
Publication year - 2019
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201800027
Subject(s) - physics , positron , plasma , ion , electron , atomic physics , tokamak , magnetic field , korteweg–de vries equation , nuclear physics , nonlinear system , quantum mechanics
In this study, the properties of ion‐ and positron‐acoustic solitons are investigated in a magnetized multi‐component plasma system consisting of warm fluid ions, warm fluid positrons, q ‐non‐extensive distributed positrons, q ‐non‐extensive distributed electrons, and immobile dust particles. To drive the Korteweg–de Vries (KdV) equation, the reductive perturbation method is used. The effects of the ratio of the density of positrons to ions, the temperature of the positrons, and ions to electrons, the non‐extensivity parameters q e and q p , and the angle of the propagation of the wave with the magnetic field on the potential of ion‐ and positron‐acoustic solitons are also studied. The present investigation is applicable to solitons in fusion plasmas in the edge of tokamak.