Search Results for author: S. Dixon

Found 2 papers, 1 papers with code

Evidence for Cosmic Acceleration is Robust to Observed Correlations Between Type Ia Supernova Luminosity and Stellar Age

no code implementations27 Feb 2020 B. M. Rose, D. Rubin, A. Cikota, S. E. Deustua, S. Dixon, A. Fruchter, D. O. Jones, A. G. Riess, D. M. Scolnic

We reanalyze this sample of hosts using both the original method and a Bayesian hierarchical model and find after a fuller accounting of the uncertainties the significance of a dependence on age to be $\leq2\sigma$ and $\sim1\sigma$ after the removal of a single poorly-sampled SN Ia.

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

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