Review Talk: Simulations at the intersection of galaxy formation and cosmology

          @misc{ pirsa_PIRSA:25070004,
            doi = {10.48660/25070004},
            url = {https://pirsa.org/25070004},
            author = {Schaye, Joop},
            keywords = {Cosmology},
            language = {en},
            title = {Review Talk: Simulations at the intersection of galaxy formation and cosmology},
            publisher = {Perimeter Institute},
            year = {2025},
            month = {jul},
            note = {PIRSA:25070004 see, \url{https://pirsa.org}}
          }
          

Abstract

Observational surveys of the distribution of matter in the universe are becoming ever more precise and continue to be extended to smaller scales. This necessitates accounting for the fact that baryons do not precisely trace the dark matter. The redistribution of baryons by galactic winds, which is the major bottleneck in our understanding of galaxy evolution, therefore requires a convergence between models of large-scale structure and cosmology. I will discuss some of the insights gained from cosmological, hydrodynamical simulations, and challenges that need to be overcome to make further progress. I will present recent results from the FLAMINGO suite of large-volume cosmological, hydrodynamical simulations, which provide insight into the importance of baryonic effects for cosmology using large-scale structure and galaxy clusters. Finally, I will present the COLIBRE simulations of galaxy formation, a new suite of cosmological hydrodynamical simulations that removes important shortcomings of previous simulations.