Red Nuggets at High Redshift: Structural Evolution of Quiescent Galaxies
  Over 10 Gyr of Cosmic History
  We present an analysis of the size growth seen in early-type galaxies over 10
Gyr of cosmic time. Our analysis is based on a homogeneous synthesis of
published data from 17 spectroscopic surveys observed at similar spatial
resolution, augmented by new measurements for galaxies in the Gemini Deep Deep
Survey. In total, our sample contains structural data for 465 galaxies (mainly
early-type) in the redshift range 0.2<z<2.7. The size evolution of
passively-evolving galaxies over this redshift range is gradual and continuous,
with no evidence for an end or change to the process around z~1, as has been
hinted at by some surveys which analyze subsets of the data in isolation. The
size growth appears to be independent of stellar mass, with the mass-normalized
half-light radius scaling with redshift as R_e (1+z)^(-1.62 +/- 0.34).
Surprisingly, this power law seems to be in good agreement with the recently
reported continuous size evolution of UV-bright galaxies in the redshift range
z~0.5-3.5. It is also in accordance with the predictions from recent
theoretical models.
