Figure 2
From: On the morphology of electrostatic solitary waves in the Earth’s aurora

Phase portrait profiles for different V values; the depicted curves represent (I) RSW (in green color), for \(V = 1.15\), (II) FTSW (in red color), for \(V =1.17077242\), and (III) SSW (in blue color), for \(V = 1.172\). The remaining parameter values are: \(\beta =0.06439\), \(\zeta =0.0001\), \(\delta =0.01\), \(\mu =16\), and \(Q=1\).