11-13 November 2019
Volkshotel, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Clarifying the Hubble Constant Tension

13 Nov 2019, 09:00
30m
Riet (Volkshotel, Amsterdam, The Netherlands)

Riet

Volkshotel, Amsterdam, The Netherlands

Wibautstraat 150 1091 GR Amsterdam
Overview talk Overview talks

Speaker

Stephen Feeney (University College London)

Description

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 the subject of intense debate. In this talk, I will review the community's attempts to explain and interpret the Hubble constant tension, clarifying the current picture using Bayesian probability theory, and consider the potential for independent gravitational wave observations to arbitrate the dispute.

Primary author

Stephen Feeney (University College London)

Presentation Materials