Speaker
Description
The Dark Energy Survey (DES) provides a rich dataset to explore the effect of weak gravitational lensing on distant galaxies by the large-scale structure of the Universe. Weak lensing has become a powerful probe to investigate matter distribution in the Universe over the past decade thanks to large imaging surveys. In order to extract unbiased cosmological information from the dataset, however, one requires robust analyses throughout the pixel-to-cosmology pipeline, such as measuring galaxy shapes from images and modeling astrophysics accurately. In this talk, I will present the legacy weak lensing cosmology results measured with the Y6 shear catalog containing more than 150 million galaxies, constituting the most powerful weak lensing dataset to date.