Unveiling the physical origins of assembly bias

8 – 12 July 2024


It has long been established that halo clustering depends on a variety of so-called secondary halo properties at fixed halo mass, including halo formation time, concentration and spin. This effect, which is commonly known as halo assembly bias, might manifest itself on the galaxy population, which makes it particularly relevant for the modeling of galaxy clustering and the generation of galaxy mocks.  This team research week will gather a group of experts on the halo-galaxy connection to investigate the physical origins of assembly bias using cosmological simulations.  Unveiling the nature of this effect would not only benefit the modeling of clustering, but it would also improve our understanding of the formation of the large-scale structure of the Universe.


Local participants