V_rot/V_circ and σ/V_rot as a function of the fraction of the gas mass supported by rotation and at different radii in the simulations at z = 0: R_max (dot-dashed line), 0.5   R_bar (solid line), R_bar (dotted line) and 1.5   R_bar (dashed line). Error bars correspond to the standard deviations. It is interesting to note that V_rot at R_max can approximate V_circ with good accuracy (>90%) for all simulated systems.