The effect of the ion temperature on large amplitude ion‐acoustic waves in an electron–positron–ion plasma

1996 ◽  
Vol 3 (4) ◽  
pp. 1447-1451 ◽  
Author(s):  
Y. N. Nejoh
Keyword(s):  
Acoustic Waves ◽  
Large Amplitude ◽  
Ion Temperature ◽  
Ion Acoustic Waves ◽  
Ion Plasma ◽  
Electron Positron ◽  
Ion Acoustic

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.

Oblique modulation of ion-acoustic waves and envelope solitons in electron-positron-ion plasma

2009 ◽  
Vol 16 (6) ◽  
pp. 062305 ◽  
Author(s):  
Nusrat Jehan ◽  
M. Salahuddin ◽  
Arshad M. Mirza
Keyword(s):  
Acoustic Waves ◽  
Ion Acoustic Waves ◽  
Envelope Solitons ◽  
Ion Plasma ◽  
Electron Positron ◽  
Ion Acoustic

Nonlinear Ion-Acoustic Waves in Relativistic Electron-Positron-Ion Plasma: Liner and Higher Order Nonlinear Effects

2011 ◽  
Author(s):  
M. Mehdipoor ◽  
Muhammed Hasan Aslan ◽  
Ahmet Yayuz Oral ◽  
Mehmet Özer ◽  
Süleyman Hikmet Çaglar
Keyword(s):  
Relativistic Electron ◽  
Acoustic Waves ◽  
Nonlinear Effects ◽  
Higher Order ◽  
Ion Acoustic Waves ◽  
Plasma Liner ◽  
Ion Plasma ◽  
Electron Positron ◽  
Ion Acoustic

Effect of space-time fractional on the ion acoustic waves in electron-positron-ion plasma

2014 ◽  
Vol 350 (2) ◽  
pp. 591-598 ◽  
Author(s):  
S. A. El-Wakil ◽  
Essam M. Abulwafa ◽  
A. Elgarayhi ◽  
E. K. El-Shewy ◽  
Abeer A. Mahmoud ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Space Time ◽  
Ion Acoustic Waves ◽  
Ion Plasma ◽  
Electron Positron ◽  
Ion Acoustic

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

Criteria governing ion-acoustic waves in two-ion plasmas

1986 ◽  
Vol 36 (1) ◽  
pp. 75-96 ◽  
Author(s):  
I. M. A. Gledhill ◽  
M. A. Hellberg
Keyword(s):  
Acoustic Waves ◽  
Heavy Ion ◽  
Ion Temperature ◽  
Ion Acoustic Waves ◽  
Principal Mode ◽  
Higher Order Modes ◽  
Ion Plasma ◽  
Ion Acoustic ◽  
Light Ions ◽  
Second Wave

It has previously been observed that ion-acoustic waves exhibit two types of behaviour as the proportion of light ions in a mixed plasma is varied. Either the principal mode of the heavy ion plasma changes continuously into that of the light ion plasma, or it becomes too heavily damped to be observable while a second wave appears and develops into the principal light ion mode. A similar phenomenon is observed as the wavenumber or the ratio of electron temperature to ion temperature is changed. Criteria determining which behaviour occurs are derived by considering the form of the dielectric response function. The results may also be used to predict which of the higher-order modes of the plasma is involved in the process, and whether degeneracies exist in the dispersion relation.

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