VANDELS massive quiescent galaxies at 1.0<z<1.3

We demonstrate that, although the relationships predicted by SIMBA and ILLUSTRISTNG agree well with observations at z=0.1, they are too shallow at z=1, predicting an evolution of =<0.5Gyr per decade in mass. Secondly, we consider the connections between green-valley, post-starburst, and quiescent galaxies, using our inferred SFH shapes and the distributions of galaxy physical properties on the UVJ diagram. The majority of our lowest-mass galaxies (M_*_~10^10.5^M_{sun}_) are consistent with formation in recent (z<2), intense starburst events, with time-scales of =<500Myr.

A second class of objects experience extended star-formation epochs before rapidly quenching, passing through both green-valley and post-starburst phases. The most massive galaxies in our sample are extreme systems: already old by z=1, they formed at z~5 and quenched by z=3. However, we find evidence for their continued evolution through both AGN and rejuvenated star-formation activity.