Past Event

Physics Colloquium: "The Dark Energy Spectroscopic Survey (DESI) and Beyond" with David Schlegel

September 25, 2023
12:30 PM - 1:30 PM
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Center for Theoretical Physics (Pupin Hall 8th Floor)

"The Dark Energy Spectroscopic Survey (DESI) and Beyond"

The Dark Energy Spectroscopic Instrument (DESI) is mapping the sky with a 5000-fiber robotic focal plane and 10 optical spectrographs. I will describe the challenges in construction, installation, commissioning, operations, and data reduction. The 20 million galaxies mapped in the first two years already promises to improve our understanding of cosmic expansion and dark energy. Future upgrades oaf the DESI instrument will enable efficient mapping of the high-redshift (z>2) universe, necessary for probing early universe inflation models. I will briefly describe the R&D for these upgrades.