This stellar concentration matches theoretical models linking stellar density to a central black hole's mass. (stsci.edu)
Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers. (sciencedaily.com)
It has been argued that these discs will last longer in low stellar density environments because stellar encounters and UV radiation all erode disks. (eos-nexus.org)