
TY  - JOUR
A1  - Nejoh, Y. N. 
T1  - Effects of Positron Density and Temperature on Large Amplitude Ion-acoustic Waves in an Electron&#8211;Positron&#8211;Ion Plasma
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1997
VL  - 50
IS  - 2
SP  - 309
EP  - 317
KW  - 
UR  - https://doi.org/10.1071/P96064 
N2  - 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. 
ER  -

