CPC Seminar: The Dark Energy Spectroscopic Instrument: Project Updates

  • Feb. 13, 2023, 2:00 pm US/Central
  • Curia II
  • Julien Guy, LBNL
  • Host: Dylan Temples, dtemples@fnal.gov

Abstract: The Dark Energy Spectroscopic Instrument (DESI) is undertaking a 5-year spectroscopic survey of 40 million galaxies and quasars measured over a 14,000 square degree footprint. 30 percent of the dark time survey was completed by the end of October 2022. The analysis of the survey validation data has demonstrated that the survey is on track to meet its requirements and provide measurements of the expansion history of the Universe and the growth rate of structure with an unprecedented precision. I will describe the survey progress, present recent results and prospects for the year 2023 during which this first year of data will be analyzed. I will also mention plans for a second phase of the survey (DESI-II).