Speaker
Simão Marques Nunes
Description
In this talk I will discuss cosmological tests of gravity theories, in particular I will focus on non-metric extensions. I will present two realizations within the f(Q) gravity framework: a minimal inverse non-metricity model, which introduces no additional free parameters relative to ΛCDM, and a self-accelerating logarithmic model, with a general branch (sLog) and a DGP-like limit (sDGP). Both are constrained using CMB data alone and in combination with BAO, RSD and SNIa (adding DES large-scale-structure data for the inverse model), considering fixed and varying neutrino mass. Finally, I will discuss the models in light of the H0 tension and provide a model selection analysis.
| Topic | Cosmological tests of gravity |
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