The Dark Energy Survey (DES) is a wide-field imaging survey, which in 2019 completed observations of 5000 sq deg in five filters. This talk will give an overview of the experiment and collaboration, and showcase the breadth of analyses enabled by this data set, ranging from solar system science, characterization of milky way satellites, to galaxy evolution and cosmological constraints. We will highlight the recent cosmology analyses, combining weak lensing and galaxy clustering measurements, of DES Year-3 data and comment on lessons for large, collaborative cosmology analyses with Rubin’s Legacy Survey of Space and Time.

Chihway Chang is an Assistant Professor at the University of Chicago. She received her PhD in 2013 from Stanford. After a postdoc at ETH Zurich, she moved to Chicago as a KICP fellow in 2016 and joined the faculty in 2018. She is an observational cosmologist and a survey scientist working primarily on cosmology with weak lensing in large galaxy surveys. She is currently involved in the Dark Energy Survey and the Rubin Observatory’s Legacy Survey of Space and time. You can find more information about her and her work on her website (https://chihway.github.io/).

Elisabeth Krause is an Assistant Professor in Astronomy and Physics at the University of Arizona. She received her PhD in 2012 from Caltech. After postdoctoral positions at UPenn, Stanford and JPL, she joined the faculty at Arizona in 2018. Her research of combining different cosmology observations is at the intersection of observational and theoretical cosmology. She is currently involved in the Dark Energy Survey, the Rubin Observatory’s Legacy Survey of Space and Time, the SPHEREx mission, and the Roman Space Telescope. You can find more information about her and her work on her website (http://azcosmolab.org/).

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