Linear and nonlinear propagation of ion-acoustic waves in a multi-ion plasma with positrons and two-temperature superthermal electrons

2013 ◽  
Vol 349 (1) ◽  
pp. 229-238 ◽  
Author(s):  
S. Sultana ◽  
A. A. Mamun
Keyword(s):  
Acoustic Waves ◽  
Nonlinear Propagation ◽  
Superthermal Electrons ◽  
Ion Acoustic Waves ◽  
Ion Plasma ◽  
Ion Acoustic ◽  
Linear And Nonlinear ◽  
Two Temperature

Nonlinear propagation of ion-acoustic waves in an electron-positron-ion plasma

2014 ◽  
Vol 352 (2) ◽  
pp. 579-584 ◽  
Author(s):  
M. Ferdousi ◽  
S. Yasmin ◽  
S. Ashraf ◽  
A. A. Mamun
Keyword(s):  
Acoustic Waves ◽  
Nonlinear Propagation ◽  
Ion Acoustic Waves ◽  
Ion Plasma ◽  
Electron Positron ◽  
Ion Acoustic

Linear and nonlinear ion-acoustic waves in very dense magnetized plasmas

2008 ◽  
Vol 15 (8) ◽  
pp. 082303 ◽  
Author(s):  
S. A. Khan ◽  
S. Mahmood ◽  
H. Saleem
Keyword(s):  
Acoustic Waves ◽  
Magnetized Plasmas ◽  
Ion Acoustic Waves ◽  
Ion Acoustic ◽  
Linear And Nonlinear

scholarly journals Effects of Positron Density and Temperature on Large Amplitude Ion-acoustic Waves in an Electron - Positron - Ion Plasma

1997 ◽  
Vol 50 (2) ◽  
pp. 309 ◽  
Author(s):  
Y. N. Nejoh
Keyword(s):  
Acoustic Waves ◽  
Large Amplitude ◽  
Density Ratio ◽  
Present Theory ◽  
Electron Mass ◽  
Mass Ratio ◽  
Ion Acoustic Waves ◽  
Ion Plasma ◽  
Electron Positron ◽  
Ion Acoustic

The nonlinear wave structures of large amplitude ion-acoustic waves are studied in a plasma with positrons. We have presented the region of existence of the ion-acoustic waves by analysing the structure of the pseudopotential. The region of existence sensitively depends on the positron to electron density ratio, the ion to electron mass ratio and the positron to electron temperature ratio. It is shown that the maximum Mach number increases as the positron temperature increases and the region of existence of the ion-acoustic waves spreads as the positron temperature increases. The present theory is applicable to analyse large amplitude ion-acoustic waves associated with positrons which may occur in space plasmas.

scholarly journals Ion acoustic quasi-soliton in an electron-positron-ion plasma with superthermal electrons and positrons

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 563-567 ◽  
Author(s):  
Jianyong Wang ◽  
Ying Zeng ◽  
Zufeng Liang ◽  
Yani Xu ◽  
Yuanxiang Zhang
Keyword(s):  
Acoustic Waves ◽  
Vries Equation ◽  
Reductive Perturbation Method ◽  
Superthermal Electrons ◽  
Ion Plasma ◽  
Electron Positron ◽  
Electrons And Positrons ◽  
Ion Acoustic ◽  
De Vries ◽  
Superthermal Electrons And Positrons

Abstract In this work, we are concerned with the ion acoustic quasi-soliton in an electron-positron-ion plasma with superthermal electrons and positrons. By using the reductive perturbation method, the Korteweg-de Vries equation is derived from the governing equations of ion acoustic waves. An interesting soliton-cnoidal wave solution of the Korteweg-de Vries equation and its quasi-soliton behaviour are presented. The influence of electron superthermality, positron superthermality and positron concentration ratio on characteristics of the quasi-soliton is confirmed to be significant.

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