DESI 2024 V: Full-Shape galaxy clustering from galaxies and quasars

Abstract We present the measurements and cosmological implications of the galaxy two-point clustering using over 4.7 million unique galaxy and quasar redshifts in the range 0.1 < z < 2.1 divided into six redshift bins over a ∼ 7,500 square degree footprint, from the first year of observations with the Dark Energy Spectroscopic Instrument (DESI Data Release 1). By fitting the full power spectrum, we extend previous DESI DR1 baryon acoustic oscillation (BAO) measurements to include redshift-space distortions and signals from the matter-radiation equality scale. For the first time, this Full-Shape analysis is blinded at the catalogue-level to avoid confirmation bias and the systematic errors are accounted…

• NS
  National Science Foundation

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

  Awards: -AC02-05CH11231, 05CH11231, AC02-05CH11231, DE-AC02, AST-0950945, DE-AC02-
• GA
  Gordon and Betty Moore Foundation
• MD
  Ministerio de Ciencia e Innovación
• CÀ
  Commissariat à l'Énergie Atomique et aux Énergies Alternatives
• OO
  Office of Science

  Awards: AC02-05CH11231, -AC02-05CH11231, DE-AC02, 05CH11231
• SA
  Science and Technology Facilities Council
• DO
  Division of Astronomical Sciences

  Awards: DE-AC02-05CH11231, AST-0950945