Normalised logarithmic density, ρ/ρ_S, of the equilibrium configuration for the models listed in Table 1. The density range is from 0.1 to 100, except for model Ac and C3c which have a maximum density of 1000 and 300, respectively. The dashed lines show contour lines for density values of 1, 2, 3, 5, 10, 20, 30, 50, 100, 200, 300 and 500. The magnetic field lines are shown by the solid lines.