Angular velocity evolution for different values of the coupling time-scale τ_c−e for the fast rotator model (P_init = 1.4 days, τ_disk = 2.5 Myr). From top to bottom at the ZAMS the values for τ_c−e are: 1 Myr (blue dot − long-dashed line), 3 Myr (red dotted line), 5 Myr (cyan short-dashed line), 10 Myr (magenta dot − short-dashed line), 15 Myr (black solid line), and 20 Myr (green long-dashed line). The blue tilted square and associated error bars represent the 90th percentile of the rotational distributions of solar-type stars in star forming regions and young open clusters obtained with the rejection sampling method (see text). The open circle is the angular velocity of the present Sun.