Fabian Schmidt from the Max Planck Institute for Astrophysics will be giving a virtual CCAPP seminar.
Abstract:
The large-scale clustering of galaxies contains a wealth of information on the geometry and expansion history of the universe, on gravity, and on the initial conditions. In order to extract this information, we need to deal with the complex formation process of galaxies. Thanks to significant advances in our theoretical understanding of galaxy clustering, we now have a well-defined approach for absorbing all the complicated, incompletely understood physics of galaxy formation into a set of free parameters (the bias parameters and stochastic amplitudes), which opens up considerable additional constraining power. The next challenge to tackle then is how best to connect this theory with data, as delivered by ongoing and future surveys such as eBOSS, DESI, and Euclid. In my talk, I will review these developments, and discuss the prospects of galaxy clustering as a robust probe of cosmology in the coming decade.