A comprehensive comparison of cosmological models from latest observational data

Understand

We investigate in detail some popular cosmological models in light of the latest observational data, including the Union2.1 supernovae compilation, the baryon acoustic oscillation measurements from the WiggleZ Dark Energy Survey, the cosmic microwave background information from the WMAP 7-year observations along with the observational Hubble parameter data.

• Based on the model selection statistics such as the Akaike and the Bayesian information criterias, we compare different models to assess the worth of them.
• We do not assume a flat universe in the fitting.
• Our results show that the concordance $\Lambda$CDM model remains the best one to explain the data, while the DGP model is clearly disfavored by the data.