DESI 2024 VI: cosmological constraints from the measurements of baryon acoustic oscillations

Abstract We present cosmological results from the measurement of baryon acoustic oscillations (BAO) in galaxy, quasar and Lyman- α forest tracers from the first year of observations from the Dark Energy Spectroscopic Instrument (DESI), to be released in the DESI Data Release 1. DESI BAO provide robust measurements of the transverse comoving distance and Hubble rate, or their combination, relative to the sound horizon, in seven redshift bins from over 6 million extragalactic objects in the redshift range 0.1 < z < 4.2. To mitigate confirmation bias, a blind analysis was implemented to measure the BAO scales. DESI BAO data alone are consistent with the standard flat ΛCDM cosmological model with a matter…

• NS
  National Science Foundation

  Awards: AST-0950945, DE-AC02-07CH11359, DE-AC02-05CH11231, 0950945
• UD
  U.S. Department of Energy

  Awards: -AC02-05CH11231, DE-AC02-07CH11359, 05CH11231, AC02-07CH11359, AC02-05CH11231, DE-AC02, DE-AC02-05CH11231, DE-AC02-
• GA
  Gordon and Betty Moore Foundation
• MD
  Ministerio de Ciencia e Innovación
• UD
  Universitat de Barcelona
• CÀ
  Commissariat à l'Énergie Atomique et aux Énergies Alternatives
• ID
  Instituto de Astrofísica de Andalucía
• OO
  Office of Science

  Awards: AC02-05CH11231, -AC02-05CH11231, DE-AC02, DE-AC02-07CH11359
• SA
  Science and Technology Facilities Council

  Awards: ST/T005009/2, ST/T005009/1
• ID
  Institut de Ciències del Cosmos
• DO
  Division of Astronomical Sciences

  Award: AST-0950945
• HE
  High Energy Physics

  Award: DE-AC02-05CH11231
• IE
  Integrated Electronics Engineering Center, Binghamton University
• F
  Fermilab