Tim Eifler Associate Professor, Department of Astronomy, & Associate Astronomer, Steward Observatory, Univ. of Arizona
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Abstract: Datasets from ongoing cosmological surveys are testing the standard model of our Universe, Lambda Cold Dark Matter plus General Relativity, at unprecedented precision. Future experiments such as the Nancy Grace Roman Space Telescope (launch 2026/27) and the Vera C Rubin Observatory (operations begin in 2025) will increase the data volume and quality even further, which poses new challenges for the community. In this talk I will briefly review results from contemporary cosmological surveys, with a specific focus on findings from the Dark Energy Survey, the Hyper Suprime Cam Survey, and the Kilo Degree Survey in comparison with CMB experiments. I will then detail challenges for the analysis and interpretation of data from future endeavors, in particular Roman and Rubin. Coordinating the survey strategy between these surveys will result in exquisite control of systematics and tight constraints on fundamental physics question such as the nature of dark energy, and the growth of structures in the universe over time,
In-person only. Refreshments in PAS 218 at 2:30PM