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Exploring the properties of dark energy using type-Ia supernovae and other datasets

Starobinsky, Alexei A.; Alam, Ujjaini; Sahni, Varun

We reconstruct dark energy properties from two complementary supernova datasets—the newly released Gold + HST sample and SNLS. The results obtained are consistent with the standard ΛCDM model within 2σ error bars, although the Gold + HST data favour evolving dark energy slightly more than SNLS. Using complementary data from baryon acoustic oscilla…