Quiescent Galaxy Size, Velocity Dispersion, and Dynamical Mass Evolution
  We use surveys covering the redshift range $0.05 < z < 3.8$ to explore
quiescent galaxy scaling relations and the redshift evolution of the velocity
dispersion, size, and dynamical mass at fixed stellar mass. For redshift $z <
0.6$ we derive mass limited samples and demonstrate that these large samples
enhance constraints on the evolution of the quiescent population. The
constraints include 2985 new velocity dispersions from the SHELS F2 survey
(Geller et al. 2014). In contrast with the known substantial evolution of size
with redshift, evolution in the velocity dispersion is negligible. The
dynamical-to-stellar mass ratio increases significantly as the universe ages,
in agreement with recent results that combine high redshift data with the SDSS.
Like other investigators, we interpret this result as an indication that the
dark matter fraction within the effective radius increases as a result of the
impact of the minor mergers that are responsible for size growth. We emphasize
that dense redshift surveys covering the range $0.07 < z < 1$ along with strong
and weak lensing measurements could remove many ambiguities in evolutionary
studies of the quiescent population.
