DESI 2024 VII: cosmological constraints from the full-shape modeling of clustering measurements

作者：A. G. Adame, J. Aguilar, S. Ahlen, Shadab Alam, D. M. Alexander, Carlos Allende Prieto, Marcelo A. Alvarez, O. Alves, A. Anand, U. Andrade, E. Armengaud, S. Avila, Alejandro Avilés, H. Awan, Benedict Bahr-Kalus, S. Bailey, C. Baltay, A. Bault, J. Behera, S. BenZvi, Florian Beutler, Davide Bianchi, Chris Blake, Robert Blum, M. Bonici, S. Brieden, A. Brodzeller, David J. 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, D. Chebat, S. Chen, X. Chen, T. Claybaugh, S. Cole, A. Cuceu, T. M. Davis, K. Dawson, Axel de la Macorra, Arnaud de Mattia, N. Deiosso, A. Dey, Biprateep Dey, Z. Ding, P. Doel, Jerry Edelstein, Sarah Eftekharzadeh, Daniel J. Eisenstein, Willem Elbers, A. Elliott, Parker Fagrelius, K. Fanning, Simone Ferraro, J. Ereza, N. Findlay, B Flaugher, Andreu Font-Ribera, D. Forero-Sánchez, J. E. Forero-Romero, Carlos S. Frenk, C. García-Quintero, Lehman H. Garrison, 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, Chang Hoon Hahn, M. Hanif, H. K. Herrera-Alcantar, K. Honscheid, Cullan Howlett, Dragan Huterer, Vid Iršič, Mustapha Ishak, R. Joyce, S. Juneau, Naim Göksel Karaçaylı, R. Kehoe, S. Kent, D. Kirkby, Hui Kong, S. E. Koposov, A. Kremin, Alex Krolewski, O. Lahav, 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, K. Lodha, C. Magneville, Marc Manera, Daniel Margala, Paul Martini, William L. Matthewson, M Maus, P. McDonald, L. Medina-Varela, Aaron Meisner, J. Mena-Fernández, R. Miquel, J. Moon, Shannon Moore, John Moustakas, Nayantara Mudur, Eva-Maria Mueller, A. Muñoz-Gutiérrez, Adam D. Myers, S. Nadathur, L. Napolitano, Richard Neveux, Jeffrey A. Newman, Nhat-Minh Nguyen, J. Nie, G. Niz, H. E. Noriega, Nikhil Padmanabhan, E. Paillas, N. Palanque‐Delabrouille, J. Pan, S. Penmetsa, Will J. Percival, Matthew M. Pieri, M. Pinon, Claire Poppett, A. Porredon, F. Prada, A. Pérez-Fernández, 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, H. Seo, Arman Shafieloo, R. M. Sharples, J. Silber, A. Slosar, A. G. Smith, David Sprayberry, T. Tan, G. Tarlé, Paul A. Taylor, S. Trusov, R. Vaisakh, D. Valcin, F. Valdés, Georgios Valogiannis, M. Vargas-Magaña, Licia Verde, Michael Walther, B. Wang, M. S. Wang, Benjamin Alan Weaver, N. Weaverdyck, Risa H. Wechsler, David H. Weinberg, Martin White, M. J. Wilson, Liang Yi, Jiaxi Yu, Y. Yu, Sihan Yuan, Christophe Yèche, E. A. Zaborowski, Pauline Zarrouk, H. Zhang, Cheng Zhao, Ruiyang Zhao, Rongpu Zhou, Ting Zhuang, H. Zou · 发表于：Journal of Cosmology and Astroparticle Physics · 年份：2025 · DOI：10.1088/1475-7516/2025/07/028 · 被引用次数：172 · 研究领域：Cosmology and Gravitation Theories、Galaxies: Formation, Evolution, Phenomena、Dark Matter and Cosmic Phenomena

Abstract We present cosmological results from the measurement of clustering of galaxy, quasar and Lyman-α forest tracers from the first year of observations with the Dark Energy Spectroscopic Instrument (DESI Data Release 1). We adopt the full-shape (FS) modeling of the power spectrum, including the effects of redshift-space distortions, in an analysis which has been thoroughly validated in a series of supporting papers as summarised in [1]. We combine the full-shape information with DESI's DR1 constraints from the baryon acoustic oscillations (BAO) of these tracers. In the flat ΛCDM cosmological model, DESI (FS+BAO), combined with a baryon density prior from Big Bang Nucleosynthesis and a weak prior on the scalar spectral index, determines matter density to Ω m = 0.2962 ± 0.0095, and the amplitude of mass fluctuations to σ 8 = 0.842 ± 0.034. The addition of the cosmic microwave background (CMB) data tightens these constraints to Ω m = 0.3056 ± 0.0049 and σ 8 = 0.8121 ± 0.0053, while further addition of the joint clustering and lensing analysis from the Dark Energy Survey Year-3 (DESY3) data further improves these measurements, and leads to a 0.4% determination of the Hubble constant, H 0 = (68.40 ± 0.27) km s -1 Mpc -1 . In models with a time-varying dark energy equation of state parametrised by w 0 and w a , combinations of DESI (FS+BAO) with CMB and type Ia supernovae continue to show the preference, previously found in the DESI DR1 BAO analysis, for w 0 > -1 and w a &l...