Horizon Run 5 (HR5, not to be mistaken with The Horizon Simulations), introduced by Lee et al. (2021) is a cosmological hydrodynamical simulation which captures the properties of the Universe on a Gpc scale while achieving a resolution of 1 kpc, aims to study the effect of large-scale perturbations on formation of galaxies and clusters. This enormous dynamic range simultaneously capture the physics of the cosmic web on very large scales and account for the formation and evolution of dwarf galaxies on much smaller scales. Inside the simulation box is a zoom-in on a high-resolution cuboid region with a volume of 1049×114×114 cMpc3. The sub-grid physics chosen to model galaxy formation includes radiative heating/cooling, reionization, star formation, supernova feedback, chemical evolution tracking the enrichment of oxygen and iron, the growth of supermassive black holes and feedback from active galactic nuclei (AGN) in the form of a dual jet-heating mode. This simulation is run on a hybrid MPI-OpenMP version of the RAMSES code. The simulation successfully reproduces observations, such as the cosmic star formation history and connectivity of galaxy distribution. HR5 contains cosmological structures in a wide range of scales, from filaments of a few cMpc lengths to voids of ∼100 cMpc radii.
Website: http://sdss.kias.re.kr/astro/Horizon-Runs/Horizon-Run5.php