Nominal electron density profiles for T_e = T_n (solid red line), T_e = 300 K (dash-dotted green line), T_e = 10 × T_n (dashed blue line) and T_e =1 230 K (dotted black line). The gray profiles are the electron density profiles obtained considering chemical uncertainties for the T_e = T_n case. The red triangles and blue circles give the electron density profiles measured during the Voyager 2 flyby from Tyler et al. (1989).