Constraints on Quenching of z\lesssim2 Massive Galaxies from the Evolution of the average Sizes of Star-Forming and Quenched Populations in COSMOS

We use >9400 \log(m/M_{\odot})>10 quiescent and star-forming galaxies at z\lesssim2 in COSMOS/UltraVISTA to study the average size evolution of these systems, with focus on the rare, ultra-massive population at \log(m/M_{\odot})>11.4. The large 2-square degree survey area delivers a sample of \sim400 such ultra-massive systems. Accurate sizes are derived using a... Show more