V-K vs z for the K<21.5 sample

The V-K color of the K<21.5 selected galaxy sample as a function of redshift for the Hubble deep field sample. Objects with spectroscopic redshifts are shown with solid boxes while the remaining objects are shown at their color estimated redshift ( crosses) The objects surrounded by the lareg open boxes are those which are classified as ellipticals in the SED fit. The solid line show the color evolution of an unevolved elliptical galaxy.