Figure 14: The corotation radius ( ) versus the bar radius ( ) for barred galaxies from the literature with bar pattern speed measured by applying the TW method. Full and open stars refer to barred and unbarred lenticular galaxies, respectively. Open circles show spiral barred galaxies. The full, dashed, and dotted lines represent , and 2.0, respectively. Fast bars are usually defined as those with (see text for more details). The data for this figure was taken from [200].