Normalized velocity dispersion profile for all high density clusters studied so far as part of this program. Radii are in units of r₀, the radius where the acceleration is a₀, computed assuming M/L = 1 for all clusters. The dispersion is normalized to the value at r₀ to ensure in the region r > r₀ profiles from different clusters are comparable. The solid line at d = 1 represent a constant velocity dispersion, while the dashed line gives the Keplerian falloff. Data for NGC 1851 and NGC 1904 are from this work, for NGC 5139 from Scarpa & Falomo (2010), for NGC 6171 from Scarpa et al. (2004a,b), and for NGC 7099 and NGC 6343 from Scarpa et al. (2007a).