Ion-acoustic solitons in a magnetized plasma with nonthermal electrons

R. A. Cairns, A A Mamun, R Bingham, P K Shukla

Research output: Contribution to journalArticle

81 Citations (Scopus)

Abstract

Obliquely propagating ion-acoustic solitons in a magnetized plasma consisting of warm adiabatic ions and nonthermal electrons have been investigated. The reductive perturbation method has been employed to derive the Korteweg-de Vries equation which admits a solitary wave solution for small amplitude limit. The highly nonlinear situation has also been studied by the numerical solution of the full nonlinear system of equations. The presence of nonthermal electrons changes the nature of ion-acoustic solitons. In the small amplitude limit the soliton may change from compressive to rarefactive, while the full nonlinear equations may allow rarefactive and compressive solitary waves to coexist. The effects of external magnetic field, obliqueness and ion temperature on the amplitude and width of the compressive and rarefactive solitons are discussed.
LanguageEnglish
Pages80-86
Number of pages7
JournalPhysica Scripta
VolumeT63
DOIs
Publication statusPublished - 1996

Fingerprint

Solitons
Acoustics
Plasma
solitary waves
Electron
acoustics
ions
electrons
Nonlinear Systems of Equations
Solitary Wave Solution
Perturbation Method
Solitary Waves
obliqueness
Korteweg-de Vries Equation
External Field
Nonlinear Equations
Magnetic Field
Numerical Solution
ion temperature
nonlinear systems

Keywords

  • 2 electron temperature plasma
  • electron
  • electrons
  • electrostatic solitary structures
  • field
  • ion
  • ions
  • plasma
  • space
  • system
  • temperature
  • waves

Cite this

Cairns, R. A. ; Mamun, A A ; Bingham, R ; Shukla, P K. / Ion-acoustic solitons in a magnetized plasma with nonthermal electrons. In: Physica Scripta. 1996 ; Vol. T63. pp. 80-86.
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abstract = "Obliquely propagating ion-acoustic solitons in a magnetized plasma consisting of warm adiabatic ions and nonthermal electrons have been investigated. The reductive perturbation method has been employed to derive the Korteweg-de Vries equation which admits a solitary wave solution for small amplitude limit. The highly nonlinear situation has also been studied by the numerical solution of the full nonlinear system of equations. The presence of nonthermal electrons changes the nature of ion-acoustic solitons. In the small amplitude limit the soliton may change from compressive to rarefactive, while the full nonlinear equations may allow rarefactive and compressive solitary waves to coexist. The effects of external magnetic field, obliqueness and ion temperature on the amplitude and width of the compressive and rarefactive solitons are discussed.",
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author = "Cairns, {R. A.} and Mamun, {A A} and R Bingham and Shukla, {P K}",
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Ion-acoustic solitons in a magnetized plasma with nonthermal electrons. / Cairns, R. A.; Mamun, A A; Bingham, R; Shukla, P K.

In: Physica Scripta, Vol. T63, 1996, p. 80-86.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Ion-acoustic solitons in a magnetized plasma with nonthermal electrons

AU - Cairns, R. A.

AU - Mamun, A A

AU - Bingham, R

AU - Shukla, P K

PY - 1996

Y1 - 1996

N2 - Obliquely propagating ion-acoustic solitons in a magnetized plasma consisting of warm adiabatic ions and nonthermal electrons have been investigated. The reductive perturbation method has been employed to derive the Korteweg-de Vries equation which admits a solitary wave solution for small amplitude limit. The highly nonlinear situation has also been studied by the numerical solution of the full nonlinear system of equations. The presence of nonthermal electrons changes the nature of ion-acoustic solitons. In the small amplitude limit the soliton may change from compressive to rarefactive, while the full nonlinear equations may allow rarefactive and compressive solitary waves to coexist. The effects of external magnetic field, obliqueness and ion temperature on the amplitude and width of the compressive and rarefactive solitons are discussed.

AB - Obliquely propagating ion-acoustic solitons in a magnetized plasma consisting of warm adiabatic ions and nonthermal electrons have been investigated. The reductive perturbation method has been employed to derive the Korteweg-de Vries equation which admits a solitary wave solution for small amplitude limit. The highly nonlinear situation has also been studied by the numerical solution of the full nonlinear system of equations. The presence of nonthermal electrons changes the nature of ion-acoustic solitons. In the small amplitude limit the soliton may change from compressive to rarefactive, while the full nonlinear equations may allow rarefactive and compressive solitary waves to coexist. The effects of external magnetic field, obliqueness and ion temperature on the amplitude and width of the compressive and rarefactive solitons are discussed.

KW - 2 electron temperature plasma

KW - electron

KW - electrons

KW - electrostatic solitary structures

KW - field

KW - ion

KW - ions

KW - plasma

KW - space

KW - system

KW - temperature

KW - waves

U2 - 10.1088/0031-8949/1996/T63/012

DO - 10.1088/0031-8949/1996/T63/012

M3 - Article

VL - T63

SP - 80

EP - 86

JO - Physica Scripta

T2 - Physica Scripta

JF - Physica Scripta

SN - 0031-8949

ER -