Panel a: E − ℓ parameter space: bounded region XZY signifies parameters for multiple sonic points in jet and region UZV within bluedotted lines represents parameters for which flow goes through shock transition. Filled circles named “b–g” are the flow parameters E and ℓ, for which the jet solutions are plotted in panels b–g. Mach number M = v∕a is plotted as a function of r for b) E = 1.46,  ℓ = 1.25; c) E = 1.208,  ℓ = 1.25; d) E = 1.208,  ℓ = 2.26; e) E = 1.39,  ℓ = 2.26; f) E = 1.47,  ℓ = 2.26; and g) E = 1.5,  ℓ = 2.26. Each panel shows physical jet solutions (solid black line) and corresponding inflow solutions (dashed red line). Sonic points are shown by the crossing of inflow and jet solutions. All solutions are for e ⁻ − p ⁺ flow.