scholarly journals Propagation of Electrostatic Waves in an Ultra-Relativistic Dense Dusty Electron-Positron-Ion Plasma

2012 ◽  
Vol 03 (08) ◽  
pp. 850-855 ◽  
Author(s):  
N. Roy ◽  
M. S. Zobaer ◽  
A. A. Mamun
Keyword(s):  
Electrostatic Waves ◽  
Ion Plasma ◽  
Electron Positron

Linear electrostatic waves in a three-component electron-positron-ion plasma

2014 ◽  
Vol 21 (12) ◽  
pp. 122119 ◽  
Author(s):  
A. Mugemana ◽  
I. J. Lazarus ◽  
S. Moolla
Keyword(s):  
Electrostatic Waves ◽  
Ion Plasma ◽  
Electron Positron

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.

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