Figure 4
From: Electron beam driven ion-acoustic solitary waves in plasmas with two kappa-distributed electrons
Existence domain of \(M_{min}\) with (a) \(\sigma _i\) for \(\delta _h=0.5\) and (b) \(\delta _h\) for \(\sigma _i=0.1\). Below the curve, \(V'''(\phi ) > 0\), and above the curve, \(V'''(\phi ) < 0\). Other parameters are \(\kappa _h=5\), \(\kappa _c=2.9\), \(u_{0b}= 0.05\), \(\mu =1836\), \(\sigma _b=1\), \(\delta _b=0.001\) and \(\sigma _h=100\).
