Accès ouvert déclaré 2025 article

DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman alpha forest

A. G. Adame, J. Aguilar, S. P. Ahlen, Shadab Alam, D. M. Alexander, Marcelo A. Alvarez, O. Alves, Abhijeet Anand, U. Andrade, S. Àvila, Alejandro Avilés, H. Awan, S. Bailey, C. Baltay, A. Bault, J. Bautista, J. Behera, S. BenZvi, Florian Beutler, Davide Bianchi, Chris Blake, Robert Blum, S. Brieden, A. Brodzeller, D. Brooks, E. Buckley‐Geer, E. Burtin, R. Calderón, R. E. A. Canning, A. Carnero Rosell, R. Cereskaite, Jorge L. Cervantes–Cota, Solène Chabanier, E. Chaussidon, J. Chaves-Montero, S. Chen, Xinyi Chen, T. Claybaugh, S. Cole, Andrei Cuceu, T. M. Davis, Kyle Dawson, Rodrigo de la Cruz, Axel de la Macorra, Arnaud de Mattia, N. Deiosso, Arjun Dey, Biprateep Dey, Jiani Ding, Z. Ding, P. Doel, J. Edelstein, Sarah Eftekharzadeh, Daniel J. Eisenstein, A. Elliott, Parker Fagrelius, K. Fanning, Simone Ferraro, J. Ereza, N. Findlay, B. Flaugher, Andreu Font-Ribera, D. Forero-Sánchez, J. E. Forero-Romero, C. García-Quintero, E. Gaztañaga, Héctor Gil-Marín, Satya Gontcho A Gontcho, Alma X. González‐Morales, Violeta González-Pérez, C. Gordon, D. Green, D. Gruen, Rafaela Gsponer, G. Gutierrez, J. Guy, Boryana Hadzhiyska, ChangHoon Hahn, M. Hanif, H. K. Herrera-Alcantar, K. Honscheid, Cullan Howlett, Dragan Huterer, Vid Iršič, Mustapha Ishak, S. Juneau, Naim Göksel Karaçaylı, R. Kehoe, S. Kent, D. Kirkby, Anthony Kremin, Alex Krolewski, Ying‐Cheng Lai, T.-W. Lan, Martin Landriau, Dustin Lang, J. Lasker, J.M. Le Goff, L. Le Guillou, Alexie Leauthaud, M. E. Levi, T. S. Li, Eric V. Linder, K. Lodha, C. Magneville, Marc Manera, Daniel Margala, Paul Martini, M Maus, Patrick McDonald, L. Medina-Varela, Aaron Meisner, J. Mena-Fernández, R. Miquel, J. Moon, Shannon Moore, John Moustakas, Eva-Maria Mueller, A. Muñoz-Gutiérrez, Adam D. Myers, S. Nadathur, L. Napolitano, Richard Neveux, Jeffrey A. Newman, Nhat-Minh Nguyen, J. Nie, Gustavo Niz, H. E. Noriega, Nikhil Padmanabhan, E. Paillas, N. Palanque‐Delabrouille, S. Penmetsa, Will J. Percival, Matthew M. Pieri, Claire Poppett, A. Porredon, Francisco Prada, Ignasi Pérez-Ràfols, D. Rabinowitz, A. Raichoor, C. Ramírez-Pérez, S. Ramírez-Solano, M. Rashkovetskyi, C. Ravoux, Mehdi Rezaie, J. Rich, A. Rocher, C. M. Rockosi, Natalie A. Roe, A. Rosado-Marin, Ashley J. Ross, Graziano Rossi, Rossana Ruggeri, V. Ruhlmann-Kleider, Lado Samushia, E. Sánchez, Christoph Saulder, Edward F. Schlafly, David J. Schlegel, M. Schubnell, Hee‐Jong Seo, R. M. Sharples, J. Silber, Francesco Sinigaglia, A. Slosar, A. G. Smith, D. Sprayberry, T. Tan, G. Tarlé, S. Trusov, R. Vaisakh, D. Valcin, F. Valdés, M. Vargas-Magaña, Licia Verde, Michael Walther, B. Wang, M. S. Wang, B. A. Weaver, N. Weaverdyck, Risa H. Wechsler, David H. Weinberg, Martin White, Jiaxi Yu, Y. Yu, Sihan Yuan, C. Yèche, E. A. Zaborowski, Pauline Zarrouk, H. Zhang, Cheng Zhao, Ruiyang Zhao, Rongpu Zhou, Hu Zou

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81Institutions déclarées

19Pays d’affiliation déclarés

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Le résumé fourni par la source

Abstract We present the measurement of Baryon Acoustic Oscillations (BAO) from the Lyman- α (Ly α ) forest of high-redshift quasars with the first-year dataset of the Dark Energy Spectroscopic Instrument (DESI). Our analysis uses over 420 000 Ly α forest spectra and their correlation with the spatial distribution of more than 700 000 quasars. An essential facet of this work is the development of a new analysis methodology on a blinded dataset. We conducted rigorous tests using synthetic data to ensure the reliability of our methodology and findings before unblinding. Additionally, we conducted multiple data splits to assess the consistency of the results and scrutinized various analysis approaches to confirm their robustness. For a given value of the sound horizon ( r d ), we measure the expansion at z eff = 2.33 with 2% precision, H ( z eff ) = ( 239.2 ± 4.8 ) (147.09 Mpc / r d ) km/s/Mpc. Similarly, we present a 2.4% measurement of the transverse comoving distance to the same redshift, D M ( z eff ) = ( 5.84 ± 0.14 ) ( r d /147.09 Mpc) Gpc. Together with other DESI BAO measurements at lower redshifts, these results are used in a companion paper to constrain cosmological parameters.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref: DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman alpha forest
Date Crossref: 01/01/2025
Éditeur: IOP Publishing
Type: journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

Boston University Tata Institute of Fundamental Research Durham University Indiana Cancer Consortium University of Michigan Michigan United Commissariat à l'Énergie Atomique et aux Énergies Alternatives CEA Paris-Saclay Institut de Recherche sur les Lois Fondamentales de l'Univers Institute for High Energy Physics Universidad Intercontinental Universidad Nacional Autónoma de México UC Irvine Health Centre de physique des particules de Marseille University of Rochester Netherlands Institute for Radio Astronomy University of Milan Mylan (Switzerland)Swinburne University of Technology National Solar Observatory University College London Fermi National Accelerator Laboratory Astrobiology Center Korea Astronomy and Space Science Institute Korean Association for the Study of Intestinal Diseases University of Portsmouth Universidad de La Laguna Sussex County Community College Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Institute for Advanced Study The University of Queensland Universidad de Guanajuato Unidades Centrales Científico-Técnicas Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas University of Pittsburgh Lickenbrock Shanghai Jiao Tong University Berkeley College Berkeley City College University of California, Berkeley Universities Space Research Association Harvard University State Library of Ohio Kavli Institute for Particle Astrophysics and Cosmology Menlo School Centre for Theoretical Physics and Astrophysics École Polytechnique Fédérale de Lausanne Institut d'Estudis Espacials de Catalunya Institut Cartogràfic i Geològic de Catalunya Secretaría de Ciencia, Humanidades, Tecnología e Innovación Institut für Urheber- und Medienrecht Excellence Cluster Universe Abiola Ajimobi Technical University Ibadan Southern Methodist University University of Waterloo Perimeter Institute Regional Municipality of Waterloo National Taiwan University Laboratoire de Physique Nucléaire et de Hautes Énergies University of California, Santa Cruz Korea Advanced Institute of Science and Technology Universitat Autònoma de Barcelona Laboratoire de Physique Subatomique et de Cosmologie Institució Catalana de Recerca i Estudis Avançats Institut Català de Ciències del Clima Siena College Wyoming Department of Education National Astronomical Observatories Laboratoire d’Astrophysique de Marseille Château Gombert Ruhr University Bochum Universitat Politècnica de Catalunya Sejong University Ilia State University Space Telescope Science Institute Brookhaven College Beihang University Tsinghua University Stanford Health Care Stanford Medicine Stanford University

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Les sujets associés

Galaxies: Formation, Evolution, PhenomenaRadio Astronomy Observations and TechnologyAstrophysics and Cosmic Phenomena

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