Cosmology from Three Years of DESI Spectroscopy

  • Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars

April 15, 2025 2:00 PM
PAIS 3205

Host:
David Camarena Torres
Presenter:
Kyle Dawson (U of Utah)
Zoom link
Over a five-year period, the Dark Energy Spectroscopic Instrument (DESI) will spectroscopically classify nearly 40 million galaxies and quasars over 1/3 of the sky and to redshifts z < 3.5. The DESI collaboration has completed measurements of the baryon acoustic oscillation (BAO) feature and more generally, of large-scale structure, using data from the first three years of observation. In this talk, I will present those measurements and their implications for our understanding of the cosmological model. In doing so, I will discuss the DESI measurements with respect to the hints of tension that have been reported in the Hubble Constant and with LCDM.

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