Nonlinear ion-acoustic solitary waves in an electron-positron-ion plasma with relativistic positron beam
Sarma Ridip1, Misra Amar P2, Adhikary Nirab C3, †
       

(color online) The soliton amplitude ϕm is plotted with respect to the positron temperature α along with variable positron concentration μb, where μb is 0.5, 0.7, and 0.9 for blue dotted, red dashed, and green bold lines, respectively, and other plasma parameters are c1 = 103, , σ = 0.1, β1 = 0.0050, and β2 = 0.0054.