Cosmology Seminar: Leonardo Duarte

Leonardo Duarte is a  visiting scholar at ITA.

Cosmic Voids and Modified Gravity

Modified gravity theories aim to reproduce the observed acceleration of the universe reducing the dark sector, while simultaneously displaying only minor changes from General Relativity within dense environments. Given the Cosmic Void's properties, their study appears to be a suitable scenario to search for imprints of alternative gravity models on cosmological scales. We present an analysis of the level of distinction between GR and two modified gravity theories, Hu-Sawicki $f(R)$ and Symmetron. This study relays on the abundance, linear-bias, and density profile of voids detected in N-body cosmological simulations.


Published Feb. 6, 2019 2:33 PM - Last modified Feb. 6, 2019 2:33 PM