CFHT UM2025 - Presentation Details
Abstract Details
Title: We see through a lens, darkly: Gravitational lensing with the Ultraviolet Near-Infrared Optical Northern Survey
Presenter: Mike Hudson
Abstract:
Weak gravitational lensing is the best way to map the distribution of matter in the Universe - most of which, of course, is dark. This powerful capability yields new insights into problems in galaxy formation – the co-evolution of galaxies and their dark matter halos through star formation, accretion, and merging, the link to larger-scale structures such as filaments of the cosmic web and cosmic voids – problems in cosmology such as the “S8 tension”. I will describe recent weak gravitational lensing results from UNIONS that are shedding new light on these problems.