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

作者：A. G. Adame, J. Aguilar, S. P. Ahlen, Shadab Alam, D. M. Alexander, Marcelo A. Alvarez, O. Alves, Abhijeet Anand, U. Andrade, E. Armengaud, S. Àvila, Alejandro Avilés, Humna Awan, S. Bailey, C. Baltay, A. Bault, Jayashree Behera, S. BenZvi, Florian Beutler, D. 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, Shi-Fan Chen, Xinyi Chen, T. Claybaugh, Shaun Cole, Andrei Cuceu, T. M. Davis, Kyle Dawson, Axel de la Macorra, Arnaud de Mattia, N. Deiosso, Arjun Dey, Biprateep Dey, Z. Ding, P. Doel, J. Edelstein, Sarah Eftekharzadeh, Daniel J. Eisenstein, Ann Elliott, P. Fagrelius, K. Fanning, Simone Ferraro, J. Ereza, N. Findlay, B. Flaugher, Andreu Font-Ribera, D. Forero-Sánchez, J. E. Forero-Romero, 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, 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, Hui Kong, S. E. Koposov, Anthony Kremin, Alex Krolewski, Ying‐Cheng Lai, Ting-Wen Lan, Martin Landriau, Dustin Lang, J. Lasker, J.M. Le Goff, L. Le Guillou, Alexie Leauthaud, M. E. Levi, Ting S. Li, 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, Jundan Nie, Gustavo Niz, H. E. Noriega, Nikhil Padmanabhan, E. Paillas, N. Palanque‐Delabrouille, Jiaming Pan, S. Penmetsa, Will J. Percival, Matthew M. Pieri, Mathilde Pinon, Claire Poppett, A. Porredon, Francisco Prada, A. Pérez-Fernández, Ignasi Pérez-Ràfols, D. Rabinowitz, Anand Raichoor, C. Ramírez-Pérez, S. Ramírez-Solano, M. Rashkovetskyi, C. Ravoux, Mehdi Rezaie, J. Rich, A. Rocher, Constance M. Rockosi, Frank Rodriguez-Martinez, 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, 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, Ben Wang, M. S. Wang, B. A. Weaver, N. Weaverdyck, Risa H. Wechsler, David H. Weinberg, Martin White, Michael Wilson, Jiaxi Yu, Yu Yu, Sihan Yuan, Christophe Yèche, E.A. Zaborowski, Pauline Zarrouk, Hanyu Zhang, Cheng Zhao, Ruiyang Zhao, Rongpu Zhou, Hu Zou · 发表于：Journal of Cosmology and Astroparticle Physics · 年份：2025 · DOI：10.1088/1475-7516/2025/09/008 · 被引用次数：65 · 研究领域：Galaxies: Formation, Evolution, Phenomena、Cosmology and Gravitation Theories、Astronomy and Astrophysical Research

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 for at the two-point clustering level, which automatically propagates them into any cosmological parameter. When analysing the data in terms of compressed model-agnostic variables, we obtain a combined precision of 4.7% on the amplitude of the redshift space distortion (RSD) signal reaching a similar precision with just one year of DESI data than with twenty years of observation from the previous generation survey. We also analyse the data to directly constrain the cosmological parameters within the ΛCDM model using perturbation theory and combine this information with the reconstructed DESI DR1 galaxy BAO. Using a Big Bang Nucleosynthesis Gaussian prior on the baryon density parameter, ω b , and a weak Gaussian prior on the spectral index, n s , we constrain the matter d...