Speaker
Description
The cosmic large-scale distribution of matter encodes a wealth of information about our Universe. In this talk, I will show results on the observational signatures expected from galaxy formation processes, such as black hole feedback, as well as from primordial Universe physics during Inflation. These results were obtained with the aid of "Response Functions", which describe rigorously the complicated dependence of galaxy formation on the environment in which they form. These functions were measured for the first time with a technique called "Separate Universe Simulation" using the IllustrisTNG model, a state of the art hydrodynamical simulation code of cosmological galaxy formation. The results I will show pinpoint a concrete way to use galaxy clustering and gravitational lensing measurements to constrain the primordial Universe, as well as how galaxies form across time. Based on https://arxiv.org/abs/1904.02070 and https://arxiv.org/abs/1907.04317 .
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