25th Symposium on Astroparticle Physics in the Netherlands, 25/26 March 2021, ZOOM

Session

Highlight talk

25 Mar 2021, 10:00

36. Clarifying the Hubble Constant Tension

Dr Stephen Feeney (University College London)

25/03/2021, 10:00

Oral presentation

Abstract: Our best estimate of the Universe's current expansion rate (the Hubble constant) from the local Universe (via the Cepheid distance ladder) is in four-sigma tension with the value extrapolated from cosmic microwave background data assuming the standard cosmology. Whether this discrepancy represents physics beyond the Standard Model or deficiencies in our understanding of the data is...