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Title: Oblique ion-acoustic cnoidal waves in two temperature superthermal electrons magnetized plasma

Abstract

A study is presented for the oblique propagation of ion acoustic cnoidal waves in a magnetized plasma consisting of cold ions and two temperature superthermal electrons modelled by kappa-type distributions. Using the reductive perturbation method, the nonlinear Korteweg de-Vries equation is derived, which further gives the solutions with a special type of cnoidal elliptical functions. Both compressive and rarefactive structures are found for these cnoidal waves. Nonlinear periodic cnoidal waves are explained in terms of plasma parameters depicting the Sagdeev potential and the phase curves. It is found that the density ratio of hot electrons to ions μ significantly modifies compressive/refractive wave structures. Furthermore, the combined effects of superthermality of cold and hot electrons κ{sub c},κ{sub h}, cold to hot electron temperature ratio σ, angle of propagation and ion cyclotron frequency ω{sub ci} have been studied in detail to analyze the height and width of compressive/refractive cnoidal waves. The findings in the present study could have important implications in understanding the physics of electrostatic wave structures in the Saturn's magnetosphere where two temperature superthermal electrons are present.

Authors:
;  [1];  [2]
  1. POSTECH, Hyoja-Dong San 31, KyungBuk, Pohang 790-784 (Korea, Republic of)
  2. Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Shandong University at Weihai, 264209 Weihai (China)
Publication Date:
OSTI Identifier:
22403319
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CYCLOTRON FREQUENCY; ELECTRON TEMPERATURE; ELECTRONS; IONS; KORTEWEG-DE VRIES EQUATION; NONLINEAR PROBLEMS; PLASMA WAVES; SATURN PLANET

Citation Formats

Panwar, A., E-mail: anurajrajput@gmail.com, Ryu, C. M., E-mail: ryu201@postech.ac.kr, and Bains, A. S., E-mail: bainsphysics@yahoo.co.in. Oblique ion-acoustic cnoidal waves in two temperature superthermal electrons magnetized plasma. United States: N. p., 2014. Web. doi:10.1063/1.4903848.
Panwar, A., E-mail: anurajrajput@gmail.com, Ryu, C. M., E-mail: ryu201@postech.ac.kr, & Bains, A. S., E-mail: bainsphysics@yahoo.co.in. Oblique ion-acoustic cnoidal waves in two temperature superthermal electrons magnetized plasma. United States. https://doi.org/10.1063/1.4903848
Panwar, A., E-mail: anurajrajput@gmail.com, Ryu, C. M., E-mail: ryu201@postech.ac.kr, and Bains, A. S., E-mail: bainsphysics@yahoo.co.in. 2014. "Oblique ion-acoustic cnoidal waves in two temperature superthermal electrons magnetized plasma". United States. https://doi.org/10.1063/1.4903848.
@article{osti_22403319,
title = {Oblique ion-acoustic cnoidal waves in two temperature superthermal electrons magnetized plasma},
author = {Panwar, A., E-mail: anurajrajput@gmail.com and Ryu, C. M., E-mail: ryu201@postech.ac.kr and Bains, A. S., E-mail: bainsphysics@yahoo.co.in},
abstractNote = {A study is presented for the oblique propagation of ion acoustic cnoidal waves in a magnetized plasma consisting of cold ions and two temperature superthermal electrons modelled by kappa-type distributions. Using the reductive perturbation method, the nonlinear Korteweg de-Vries equation is derived, which further gives the solutions with a special type of cnoidal elliptical functions. Both compressive and rarefactive structures are found for these cnoidal waves. Nonlinear periodic cnoidal waves are explained in terms of plasma parameters depicting the Sagdeev potential and the phase curves. It is found that the density ratio of hot electrons to ions μ significantly modifies compressive/refractive wave structures. Furthermore, the combined effects of superthermality of cold and hot electrons κ{sub c},κ{sub h}, cold to hot electron temperature ratio σ, angle of propagation and ion cyclotron frequency ω{sub ci} have been studied in detail to analyze the height and width of compressive/refractive cnoidal waves. The findings in the present study could have important implications in understanding the physics of electrostatic wave structures in the Saturn's magnetosphere where two temperature superthermal electrons are present.},
doi = {10.1063/1.4903848},
url = {https://www.osti.gov/biblio/22403319}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 12,
volume = 21,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2014},
month = {Mon Dec 15 00:00:00 EST 2014}
}