Cosmological inference from field-level, forward modelling of galaxy clustering - Minh Nguyen (Max-Planck-Institute for Astrophysics in Munich)

Thursday 25 Feb 2021, 10:00 → 11:00 Europe/Stockholm

How can we robustly extract information from future large-scale structure (LSS) surveys and cosmic microwave background (CMB) experiments to obtain precise but unbiased measurements of cosmological parameters? In this talk, I address this question from the perspective of the field-level, forward modelling approach to galaxy clustering. In particular, the first part of my talk will provide the latest update about testing the forward modelling approach for systematics using N-body simulations. In the second part, I will introduce a novel application of this framework on analyzing real CMB-LSS data: the inference of the kinematic Sunyaev-Zel’dovich effect, which–with the sensitivity of Simons Observatory or CMB-S4–can certainly become a key probe of both primordial non-Gaussianity and Dark Energy.