CosmoSClub: 13-04-2018

Date: April 13th 2018

Speaker: Benjamin Joachimi (University College London)

Title: Cosmic shear cosmology - where we stand


Abstract

I will review the recent weak lensing cosmology results obtained by the ESO Kilo-Degree Survey, which display an intriguing, marginal discrepancy with the primary Planck CMB constraints on structure growth. Key analysis choices and challenges will be highlighted, and new approaches to validating the measurements presented. I will also briefly discuss the relation to the Dark Energy Survey Year 1 results and some lessons learnt for the forthcoming generation of cosmological galaxy surveys.