Illustris Simulated Deep Fields ("ILLUSTRIS")

The Illustris Project conducts cosmological simulations of galaxy formation. By projecting a line of sight through a periodic volume, the team constructed realistic mock surveys which preserve the predicted geometry of the simulations. The Illustris Project consists of hydrodynamical simulations of galaxy formation in a volume 106.5 Mpc across, with detail resolved down to sub-kpc scales. Using the Arepo code, Illustris applied galaxy physics consisting of cooling, star formation, gas recycling, metal enrichment, supermassive black hole growth, and gas heating by feedback from supernovae and black holes. Three mock ultra deep fields, each 2.8 arcminutes across, in common wide filters used by HST, as well as in filters expected to be used widely by observers with JWST and Roman are provided. For HST and JWST simulations, the team provides images with and without convolution by model PSFs. For each image, the team also provides the simulation catalog from which they generated each image, enabling users to locate sources, link them to intrinsic simulation quantities, and conduct analyses across observation and theory space.