Browsing Natural and Agricultural Sciences by Subject "MCMC simulation"
Now showing items 1-2 of 2
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Constraining modified gravity models with cosmological data
(North-West University (South Africa), 2020)In this dissertation, we looked at the cosmological constraints of some f(R)-modi ed gravity models, such as f(R) = Rn (our rst toy model), f(R) = R + Rn (our second toy model), and more realistic ones like the Starobinsky ... -
Dark interactions beyond the Lambda-CDM model
(North-West University (South Africa), 2022)In this study, cosmological models are considered, where dark matter and dark energy are coupled and may exchange energy through non-gravitational interactions with one other. These interacting dark energy (IDE) models ...