Astrophysics, Gravitation and Cosmology Seminar - James Mertens (Washington University in St Louis) "Nonlinear gravity in the late Universe"
| Speaker: |
(sign-up)
James Mertens (Washington University in St Louis) |
|---|---|
| Date: | 4/6/2022 |
| Time: | 12 p.m. |
| Location: | Via Zoom |
| Event Contact: | Brandy Koebbe bkoebbe@illinois.edu |
| Sponsor: | Department of Physics |
| Event Type: | Seminar/Symposium |
In this talk I will describe recent progress modeling cosmological observables in a general relativistic setting. These advances provide us with insight into subtle gravitational effects that allow us to test general relativity in new regimes; yet if unaccounted for, these same effects may mislead us in our search for new physics. I will describe how these models not only allow us to study the behavior of general relativity at a nonlinear level, but provide us with a way to test the fundamental assumptions our cosmological models are built upon. |