Cake Talk by Sam Cutler
Resolving the history of star formation in galaxies is crucial to understanding the evolution and growth of galaxies. However, obtaining such measurements are challenging, owing to the large amount of high resolution photometric and spectroscopic data required to constrain star-formation histories (SFHs) with spectral energy distribution (SED) fitting. In this talk, I will discuss a sample of 60 z~2.3 galaxies with SED modelling of resolved central and outer components using the Bayesian Prospector code. The resulting SFHs suggest the majority of galaxies below logM<10.5 are observed while their central regions are undergoing relatively recent bursts of star-formation, compared to smoother outer and global SFHs. I will also present a potential method to infer the overall shape and behaviour of the central and global SFHs of quenched galaxies using resolved color gradients. The data required for a large sample of these gradients is now available thanks to degree-scale HST WFC3/F160W imaging from the 3D-DASH survey.