Massive Redshift Surveys and Results from the Dark Energy Spectroscopic Instrument (DESI)

The current generation of redshift surveys provide three-dimensional maps of the Universe with tens of millions of galaxies spanning much of the observable universe. These maps explore physics beyond the standard model, including the physics of dark energy and early universe inflation. David will present measurements of cosmic expansion and dark energy from the the Dark Energy Spectroscopic Instrument (DESI). DESI is mapping the sky with a 5000-fiber robotic focal plane and 10 optical spectrographs. David will describe the design of the instrument, the survey, the analysis of the first three years of data, and what has been learned about the time evolution of dark energy.

Speaker: David Schlegel, Lawrence Berkeley National Lab