Modulation Instability of Ion-Acoustic Waves in Plasma with Nonthermal Electrons

Figure 3

Plot of 𝑃/𝑄 versus wave number 𝑘 for different values of positron concentration (𝜒). Curves labelled a, b, and c correspond to 𝜒=0.25, 0.26, and 0.27, respectively. 𝛽=0.022, 𝜎_𝑝=0.01, and 𝜎_𝑖=0.052.