Denys Wilkinson Building, Department of Physics, 91̽»¨, Keble Road, 91̽»¨ OX1 3RH
Professor Vincent Desjacques, Technion
Arianna Rizzieri arianna.rizzieri@physics.ox.ac.uk
Adrien La Posta adrien.laposta@physics.ox.ac.uk
Abstract
Ongoing large-scale galaxy surveys use clustering statistics to test competing cosmological models. Extracting robust constraints, however, requires a precise understanding of galaxy bias — the connection between the observed galaxy distribution and the underlying matter field. I will illustrate how galaxy bias impacts constraints on cosmic inflation and present a model for Hα-emitting galaxies targeted by surveys such as Euclid, Dark Energy Spectroscopic Instrument (DESI), and the Nancy Grace Roman Space Telescope. I will discuss the sensitivity of these predictions to assumptions about galaxy formation physics, in particular baryonic feedback.