Speaker
Dr
Francisco Villaescusa-Navarro
Description
I will present a new framework to infer the value of cosmological parameters from peculiar velocity surveys. Our approach, which has been tested on thousands of state-of-the-art cosmological hydrodynamic simulations from the CAMELS project, takes a set of galaxies, together with their peculiar velocities, and performs field-level simulation-based inference while marginalizing over baryonic effects. We show that including peculiar velocities is key to extracting robust cosmological information.
