Galaxies at z=1-3 lensed by six HFF clusters

The power afforded by strong gravitation lensing allows us to observe galaxies with higher angular resolution beyond current facilities. We select a stellar mass limited sample and divide them into star-forming or quiescent classes based on their rest-frame UVJ colours from the ASTRODEEP catalogues.

Source reconstruction is carried out with the recently released lenstruction software, which is built on the multipurpose gravitational lensing software lenstronomy. We derive the empirical relation between size and mass for the late-type galaxies with M_*_>3x10^9^ M_{sun}_ at 1<z<2.5 and M_*_>5x10^9^M_{sun}_ at 2.5<z<3, and at a fixed stellar mass, we find galaxy sizes evolve as R_eff_{prop.to}(1+z)^-1.05+/-0.37^. The intrinsic scatter is <0.1dex at z<1.5 but increases to ~0.3dex at higher redshift.