Cosmology with the angular cross-correlation of gravitational-wave and galaxy catalogs: forecasts for next-generation interferometers and the Euclid survey
The episode discusses a paper combining gravitational-wave and galaxy catalogs to improve constraints on H zero by up to a factor of ten. Hosts discuss how this synergy confirms the effectiveness of multi-messenger approaches, using sophisticated methods like Fisher matrix formalism and binning strategies to achieve sub-percent results for measuring cosmic expansion.