Prospects for resolving the Hubble constant tension with standard sirens

9 Feb 2018Stephen M. FeeneyHiranya V. PeirisAndrew R. WilliamsonSamaya M. NissankeDaniel J. MortlockJustin AlsingDan Scolnic

The Hubble constant ($H_0$) estimated from the local Cepheid-supernova (SN) distance ladder is in 3-$\sigma$ tension with the value extrapolated from cosmic microwave background (CMB) data assuming the standard cosmological model. Whether this tension represents new physics or systematic effects is the subject of intense debate... (read more)

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