DESI 2024 III: baryon acoustic oscillations from galaxies and quasars
A. G. AdameInstituto de Física Teórica (IFT) UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, E-28049, Madrid, SpainJ. AguilarLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AS. AhlenPhysics Dept., Boston University, 590 Commonwealth Avenue, Boston, MA 02215, U.S.AShadab AlamTata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, IndiaD. M. AlexanderCentre for Extragalactic Astronomy, Department of Physics, Durham University, South Road, Durham, DH1 3LE, U.KMarcelo A. AlvarezLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AO. AlvesDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, U.S.AAbhijeet AnandLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AU. AndradeDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, U.S.AE. ArmengaudIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceS. ÀvilaInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra Barcelona, SpainAlejandro AvilésInstituto Avanzado de Cosmología A. C., San Marcos 11 - Atenas 202, Magdalena Contreras, Ciudad de México C. P. 10720, MéxicoHumna AwanDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, U.S.AS. BaileyLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AC. BaltayPhysics Department, Yale University, P.O. Box 208120, New Haven, CT 06511, U.S.AA. BaultDepartment of Physics and Astronomy, University of California, Irvine, 92697, U.S.AJayashree BeheraDepartment of Physics, Kansas State University, 116 Cardwell Hall, Manhattan, KS 66506, U.S.AS. BenZviDepartment of Physics & Astronomy, University of Rochester, 206 Bausch and Lomb Hall, P.O. Box 270171, Rochester, NY 14627-0171, U.S.AFlorian BeutlerInstitute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, U.KDavide BianchiDipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano, Via Celoria 16, I-20133 Milano, ItalyChris BlakeCentre for Astrophysics & Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, AustraliaRobert BlumNSF NOIRLab, 950 N. Cherry Ave., Tucson, AZ 85719, U.S.AS. BriedenUK Astronomy Technology CentreA. BrodzellerLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.ADavid BrooksDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, U.KE. Buckley-GeerDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, U.S.AE. BurtinIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceR. CalderónKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of KoreaR. E. A. CanningInstitute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO1 3FX, U.KA. Carnero RosellDepartamento de Astrofísica, Universidad de La Laguna (ULL), E-38206, La Laguna, Tenerife, SpainR. CereskaiteDepartment of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, U.KJorge L. Cervantes–CotaDepartamento de Física, Instituto Nacional de Investigaciones Nucleares, Carreterra México-Toluca S/N, La Marquesa, Ocoyoacac, Edo. de México C.P. 52750, MéxicoSolène ChabanierLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AE. ChaussidonLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AJ. Chaves-MonteroInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra Barcelona, SpainShi-Fan ChenInstitute for Advanced Study, 1 Einstein Drive, Princeton, NJ 08540, U.S.AXinyi ChenPhysics Department, Yale University, P.O. Box 208120, New Haven, CT 06511, U.S.AT. ClaybaughLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AShaun ColeInstitute for Computational Cosmology, Department of Physics, Durham University, South Road, Durham DH1 3LE, U.KAndrei CuceuCenter for Cosmology and AstroParticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210, U.S.AT. M. DavisSchool of Mathematics and Physics, University of Queensland, 4072, AustraliaKyle DawsonDepartment of Physics and Astronomy, The University of Utah, 115 South 1400 East, Salt Lake City, UT 84112, U.S.AAxel de la MacorraInstituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, Cd. de México C. P. 04510, MéxicoArnaud de MattiaInstitut de Recherche sur les Lois Fondamentales de l'UniversN. DeiossoCIEMAT, Avenida Complutense 40, E-28040 Madrid, SpainArjun DeyNSF NOIRLab, 950 N. Cherry Ave., Tucson, AZ 85719, U.S.ABiprateep DeyDepartment of Physics & Astronomy and Pittsburgh Particle Physics, Astrophysics, and Cosmology Center (PITT PACC), University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260, U.S.AZ. DingDepartment of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaP. DoelDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, U.KJerry EdelsteinSpace Sciences Laboratory, University of California, Berkeley, 7 Gauss Way, Berkeley, CA 94720, U.S.AS. EftekharzadehUniversities Space Research Association, NASA Ames Research Centre, U.S.ADaniel J. EisensteinCenter for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, U.S.AAnn ElliottDepartment of Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210, U.S.AParker FagreliusNSF NOIRLab, 950 N. Cherry Ave., Tucson, AZ 85719, U.S.AK. FanningKavli Institute for Particle Astrophysics and Cosmology, Stanford University, Menlo Park, CA 94305, U.S.AS. FerraroLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AJ. ErezaInstituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía, s/n, E-18008 Granada, SpainN. FindlayInstitute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO1 3FX, U.KB. FlaugherFermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, U.S.AAndreu Font-RiberaDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, U.KD. Forero-SánchezInstitute of Physics, Laboratory of Astrophysics, École Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny, Chemin Pegasi 51, CH-1290 Versoix, SwitzerlandJ. E. Forero-RomeroDepartamento de Física, Universidad de los Andes, Cra. 1 No. 18A-10, Edificio Ip, CP 111711, Bogotá, ColombiaC. García-QuinteroCenter for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, U.S.AE. GaztañagaInstitut d'Estudis Espacials de Catalunya (IEEC), 08034 Barcelona, SpainHéctor Gil-MarínDepartament de Física Quàntica i Astrofísica, Universitat de Barcelona, Martí i Franquès 1, E08028 Barcelona, SpainSatya Gontcho A GontchoLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AAlma X. González‐MoralesConsejo Nacional de Ciencia y Tecnología, Av. Insurgentes Sur 1582, Colonia Crédito Constructor, Del. Benito Juárez C.P. 03940, México D.F., MéxicoVioleta González-PérezCentro de Investigación Avanzada en Física Fundamental (CIAFF), Facultad de Ciencias, Universidad Autónoma de Madrid, ES-28049 Madrid, SpainC. GordonInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra Barcelona, SpainD. GreenDepartment of Physics and Astronomy, University of California, Irvine, 92697, U.S.AD. GruenExcellence Cluster ORIGINS, Boltzmannstrasse 2, D-85748 Garching, GermanyRafaela GsponerInstitute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO1 3FX, U.KG. GutierrezFermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, U.S.AJ. GuyLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.ABoryana HadzhiyskaLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AChang Hoon HahnDepartment of Astrophysical Sciences, Princeton University, Princeton NJ 08544, U.S.AM. HanifDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, U.S.AH. K. Herrera-AlcantarDepartamento de Física, DCI-Campus León, Universidad de Guanajuato, Loma del Bosque 103, León, Guanajuato C. P. 37150, MéxicoK. HonscheidCenter for Cosmology and AstroParticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210, U.S.ACullan HowlettSchool of Mathematics and Physics, University of Queensland, 4072, AustraliaDragan HutererDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, U.S.AVid IršičInstitute for Fundamental Physics of the Universe, via Beirut 2, 34151 Trieste, ItalyMustapha IshakDepartment of Physics, The University of Texas at Dallas, Richardson, TX 75080, U.S.AS. JuneauNSF NOIRLab, 950 N. Cherry Ave., Tucson, AZ 85719, U.S.ANaim Göksel KaraçaylıCenter for Cosmology and AstroParticle Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, OH 43210, U.S.AS. KentDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, U.S.AD. KirkbyDepartment of Physics and Astronomy, University of California, Irvine, 92697, U.S.AHui KongInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra Barcelona, SpainAnthony KreminLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.AAlex KrolewskiDepartment of Physics and Astronomy, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, CanadaYing‐Cheng LaiSchool of Mathematics and Physics, University of Queensland, 4072, AustraliaTing-Wen LanGraduate Institute of Astrophysics and Department of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, TaiwanMartin LandriauLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.ADustin LangPerimeter Institute for Theoretical Physics, 31 Caroline St. North, Waterloo, ON N2L 2Y5, CanadaJ. LaskerDepartment of Physics, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275, U.S.AJ.M. Le GoffIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceL. Le GuillouSorbonne Université, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), FR-75005 Paris, FranceAlexie LeauthaudDepartment of Astronomy and Astrophysics, UCO/Lick Observatory, University of California, 1156 High Street, Santa Cruz, CA 95064, U.S.AM. E. LeviLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, U.S.A
2025en
ABI
Annotatsiya
Abstract We present the DESI 2024 galaxy and quasar baryon acoustic oscillations (BAO) measurements using over 5.7 million unique galaxy and quasar redshifts in the range 0.1 < z < 2.1. Divided by tracer type, we utilize 300,017 galaxies from the magnitude-limited Bright Galaxy Survey with 0.1 < z < 0.4, 2,138,600 Luminous Red Galaxies with 0.4 < z < 1.1, 2,432,022 Emission Line Galaxies with 0.8 < z < 1.6, and 856,652 quasars with 0.8 < z < 2.1, over a ∼ 7,500 square degree footprint. The analysis was blinded at the catalog-level to avoid confirmation bias. All fiducial choices of the BAO fitting and reconstruction methodology, as well as the size of the systematic errors, were determined on the basis of the tests with mock catalogs and the blinded data catalogs. We present several improvements to the BAO analysis pipeline, including enhancing the BAO fitting and reconstruction methods in a more physically-motivated direction, and also present results using combinations of tracers. We employ a unified BAO analysis method across all tracers. We present a re-analysis of SDSS BOSS and eBOSS results applying the improved DESI methodology and find scatter consistent with the level of the quoted SDSS theoretical systematic uncertainties. With the total effective survey volume of ∼ 18 Gpc 3 , the combined precision of the BAO measurements across the six different redshift bins is ∼0.52%, marking a 1.2-fold improvement over the previous state-of-the-art results using only first-year data. We detect the BAO in all of these six redshift bins. The highest significance of BAO detection is 9.1σ at the effective redshift of 0.93, with a constraint of 0.86% placed on the BAO scale. We find that our observed BAO scales are systematically larger than the prediction of the Planck 2018-ΛCDM at z < 0.8. We translate the results into transverse comoving distance and radial Hubble distance measurements, which are used to constrain cosmological models in our companion paper.
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