CONFIRMATION OF THE REMARKABLE COMPACTNESS OF MASSIVE QUIESCENT GALAXIES AT z ～ 2.3: EARLY-TYPE GALAXIES DID NOT FORM IN A SIMPLE MONOLITHIC COLLAPSE

摘要

Using deep near-infrared spectroscopy, Kriek et al. found that ～45% of massive galaxies at z ～ 2.3 have evolved stellar populations and little or no ongoing star formation. Here we determine the sizes of these quiescent galaxies using deep, high-resolutio