Recent star formation in high-redshift early-type galaxies : Insights from the rest-frame UV
Van Dokkum, P.G.
We combine deep UBV RIzJK photometry from the MUSYC survey with redshifts from the COMBO-17 survey to study the rest-frame ultraviolet (UV) properties of 674 high-redshift (0.5 <z <1) early-type galaxies, drawn from the Extended Chandra Deep Field South (E-CDFS). Galaxy morphologies are determined through visual inspection of Hubble Space Telescope (HST) images taken from the GEMS survey. We harness the sensitivity of the UV to young ( 20.5) counterparts form 30-60 percent of their mass in the same redshift range.