Nonlinear ion-acoustic solitary waves in an electron-positron-ion plasma with relativistic positron beam

Sarma Ridip¹, Misra Amar P², Adhikary Nirab C^{3, †}

(color online) The phase velocity λ is plotted with respect to the positron concentration μ_b along with variable ion temperature σ, where σ is 0.1, 0.3, and 0.5 for blue dotted, red dashed, and green lines, respectively, and other plasma parameters are c₁ = 10³, , and α = 0.2.