What does this research mean for the field?

The 3.3 sigma tension between the Planck CMB-derived Hubble constant and the local R16 measurement can be reconciled by analyzing the data within an extended cosmological model that varies 12 parameters simultaneously instead of the standard 6. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

August 29, 2016Physics Letters B372 citationsOpen Access

Reconciling Planck with the local value of H 0 in extended parameter space

EVEleonora Di ValentinoUniversity of Sheffield AMA. MelchiorriUniversity of Geneva

Joseph SilkInstitut d'Astrophysique de Paris

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Abstract

The recent determination of the local value of the Hubble constant by Riess et al., 2016 (hereafter R16) is now 3.3 sigma higher than the value derived from the most recent CMB anisotropy data provided by the Planck satellite in a CDM model. Here we perform a combined analysis of the Planck and R16 results in an extended parameter space, varying simultaneously 12 cosmological parameters instead of the usual 6.

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