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arXiv · 1805.06408

Constraints on dark energy dynamics and spatial curvature from Hubble parameter and baryon acoustic oscillation data

Joseph Ryan·Sanket Doshi·Bharat Ratra
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Abstract

We use all available baryon acoustic oscillation distance measurements and Hubble parameter data to constrain the cosmological constant $\Lambda$, dynamical dark energy, and spatial curvature in simple cosmological models. We find that the consensus spatially flat $\Lambda$CDM model provides a reasonable fit to the data, but depending on the Hubble constant prior and cosmological model, it can be a little more than 1$\sigma$ away from the best-fit model, which can favor mild dark energy dynamics or non-flat spatial hypersurfaces.

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Joseph Ryan, Sanket Doshi, Bharat Ratra. 2018-05-16. Constraints on dark energy dynamics and spatial curvature from Hubble parameter and baryon acoustic oscillation data. https://doi.org/10.1093/mnras%2Fsty1922

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