Speaker
Description
Several modifications to general relativity have been proposed to explain the nature of dark energy and the accelerated expansion of the Universe. In this talk, I will review the current status of modified theories of gravity, focusing on astrophysical probes in the nonlinear regime. I will begin by outlining the expected behavior of theories beyond General Relativity in various astrophysical systems and their cosmological signatures. With this foundation, I will present a range of observational tests, emphasizing the use of current and next-generation observations for testing gravity. Specifically, I will demonstrate how physical observables in the nonlinear regime of structure formation serve as promising probes for constraining theoretical models in the nonlinear dynamics of galaxies, clusters, and large-scale structure.