Recent star formation in intermediate redshift (0.35< z <1.5) early—type galaxies

摘要

We measured the UV—optical—near-IR spectral energy distributions (SEDs) of redshift z ~ 0.3 — 1.5 early-type galaxies (ETGs) with the Hubble Space Telescope (HST) Wide Field Camera 3 (Rutkowski et al. 2012). We searched for young stellar populations and morphological signatures of the mechanisms driving recent star formation (RSF) in these ETGs in order to provide observational constraints on models of galaxy evolution.