Observational constraints on modified gravity models and the Poincaré dodecahedral topology
Observational constraints on modified gravity models and the Poincaré dodecahedral topology
We study observational constraints on models that account for the accelerated expansion of the universe via infrared modifications to general relativity, namely, the Dvali-Gabadadze-Porrati braneworld model as well as the Dvali-Turner and Cardassian models. We find that significant constraints can be placed on the parameters of each model using type …