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Title: Effects of nonextensivity on the electron-acoustic solitary structures in a magnetized electron−positron−ion plasma

Abstract

Obliquely propagating electron-acoustic solitary waves (EASWs) in a magnetized electron−positron−ion plasma (containing nonextensive hot electrons and positrons, inertial cold electrons, and immobile positive ions) are precisely investigated by deriving the Zakharov–Kuznetsov equation. It is found that the basic features (viz. polarity, amplitude, width, phase speed, etc.) of the EASWs are significantly modified by the effects of the external magnetic field, obliqueness of the system, nonextensivity of hot positrons and electrons, ratio of the hot electron temperature to the hot positron temperature, and ratio of the cold electron number density to the hot positron number density. The findings of our results can be employed in understanding the localized electrostatic structures and the characteristics of EASWs in various astrophysical plasmas.

Authors:
; ; ;  [1]
  1. Jahangirnagar University, Department of Physics (Bangladesh)
Publication Date:
OSTI Identifier:
22614092
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 42; Journal Issue: 8; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; ASTROPHYSICS; CATIONS; ELECTRON DENSITY; ELECTRON TEMPERATURE; ELECTRONS; ELECTROSTATICS; EQUATIONS; ION ACOUSTIC WAVES; MAGNETIC FIELDS; PHASE VELOCITY; PLASMA; POSITRONS; WAVE PROPAGATION

Citation Formats

Rafat, A., E-mail: rafat.plasma@gmail.com, Rahman, M. M., Alam, M. S., and Mamun, A. A. Effects of nonextensivity on the electron-acoustic solitary structures in a magnetized electron−positron−ion plasma. United States: N. p., 2016. Web. doi:10.1134/S1063780X16080092.
Rafat, A., E-mail: rafat.plasma@gmail.com, Rahman, M. M., Alam, M. S., & Mamun, A. A. Effects of nonextensivity on the electron-acoustic solitary structures in a magnetized electron−positron−ion plasma. United States. doi:10.1134/S1063780X16080092.
Rafat, A., E-mail: rafat.plasma@gmail.com, Rahman, M. M., Alam, M. S., and Mamun, A. A. Mon . "Effects of nonextensivity on the electron-acoustic solitary structures in a magnetized electron−positron−ion plasma". United States. doi:10.1134/S1063780X16080092.
@article{osti_22614092,
title = {Effects of nonextensivity on the electron-acoustic solitary structures in a magnetized electron−positron−ion plasma},
author = {Rafat, A., E-mail: rafat.plasma@gmail.com and Rahman, M. M. and Alam, M. S. and Mamun, A. A.},
abstractNote = {Obliquely propagating electron-acoustic solitary waves (EASWs) in a magnetized electron−positron−ion plasma (containing nonextensive hot electrons and positrons, inertial cold electrons, and immobile positive ions) are precisely investigated by deriving the Zakharov–Kuznetsov equation. It is found that the basic features (viz. polarity, amplitude, width, phase speed, etc.) of the EASWs are significantly modified by the effects of the external magnetic field, obliqueness of the system, nonextensivity of hot positrons and electrons, ratio of the hot electron temperature to the hot positron temperature, and ratio of the cold electron number density to the hot positron number density. The findings of our results can be employed in understanding the localized electrostatic structures and the characteristics of EASWs in various astrophysical plasmas.},
doi = {10.1134/S1063780X16080092},
journal = {Plasma Physics Reports},
number = 8,
volume = 42,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2016},
month = {Mon Aug 15 00:00:00 EDT 2016}
}