12:00–1:00 pm ERC 401
Susmita Adhikari, Stanford University, "The Outer Profiles of Dark Matter Halos as a Probe of Cosmology, Dark Matter and Galaxy Evolution"
The distribution of matter in a dark matter halo contains information about the history of its growth. In this talk I will discuss the recent theoretical developments on how the overall matter distribution and the splashback radius in the outskirts of a cluster can be used to test the nature of gravity and dark matter models. I will also talk about the recent observational developments in measuring the distribution of galaxies and matter around the splashback radius in massive galaxy clusters in DES, SPT and ACT and what we learn about the evolution of galaxies from it.