학술논문
DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
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Working Paper
Author
DESI Collaboration; Adame, A. G.; Aguilar, J.; Ahlen, S.; Alam, S.; Alexander, D. M.; Alvarez, M.; Alves, O.; Anand, A.; Andrade, U.; Armengaud, E.; Avila, S.; Aviles, A.; Awan, H.; Bahr-Kalus, B.; Bailey, S.; Baltay, C.; Bault, A.; Behera, J.; BenZvi, S.; Bera, A.; Beutler, F.; Bianchi, D.; Blake, C.; Blum, R.; Brieden, S.; Brodzeller, A.; Brooks, D.; Buckley-Geer, E.; Burtin, E.; Calderon, R.; Canning, R.; Rosell, A. Carnero; Cereskaite, R.; Cervantes-Cota, J. L.; Chabanier, S.; Chaussidon, E.; Chaves-Montero, J.; Chen, S.; Chen, X.; Claybaugh, T.; Cole, S.; Cuceu, A.; Davis, T. M.; Dawson, K.; de la Macorra, A.; de Mattia, A.; Deiosso, N.; Dey, A.; Dey, B.; Ding, Z.; Doel, P.; Edelstein, J.; Eftekharzadeh, S.; Eisenstein, D. J.; Elliott, A.; Fagrelius, P.; Fanning, K.; Ferraro, S.; Ereza, J.; Findlay, N.; Flaugher, B.; Font-Ribera, A.; Forero-Sánchez, D.; Forero-Romero, J. E.; Frenk, C. S.; Garcia-Quintero, C.; Gaztañaga, E.; Gil-Marín, H.; Gontcho, S. Gontcho A; Gonzalez-Morales, A. X.; Gonzalez-Perez, V.; Gordon, C.; Green, D.; Gruen, D.; Gsponer, R.; Gutierrez, G.; Guy, J.; Hadzhiyska, B.; Hahn, C.; Hanif, M. M. S; Herrera-Alcantar, H. K.; Honscheid, K.; Howlett, C.; Huterer, D.; Iršič, V.; Ishak, M.; Juneau, S.; Karaçaylı, N. G.; Kehoe, R.; Kent, S.; Kirkby, D.; Kremin, A.; Krolewski, A.; Lai, Y.; Lan, T. -W.; Landriau, M.; Lang, D.; Lasker, J.; Goff, J. M. Le; Guillou, L. Le; Leauthaud, A.; Levi, M. E.; Li, T. S.; Linder, E.; Lodha, K.; Magneville, C.; Manera, M.; Margala, D.; Martini, P.; Maus, M.; McDonald, P.; Medina-Varela, L.; Meisner, A.; Mena-Fernández, J.; Miquel, R.; Moon, J.; Moore, S.; Moustakas, J.; Mudur, N.; Mueller, E.; Muñoz-Gutiérrez, A.; Myers, A. D.; Nadathur, S.; Napolitano, L.; Neveux, R.; Newman, J. A.; Nguyen, N. M.; Nie, J.; Niz, G.; Noriega, H. E.; Padmanabhan, N.; Paillas, E.; Palanque-Delabrouille, N.; Pan, J.; Penmetsa, S.; Percival, W. J.; Pieri, M. M.; Pinon, M.; Poppett, C.; Porredon, A.; Prada, F.; Pérez-Fernández, A.; Pérez-Ràfols, I.; Rabinowitz, D.; Raichoor, A.; Ramírez-Pérez, C.; Ramirez-Solano, S.; Ravoux, C.; Rashkovetskyi, M.; Rezaie, M.; Rich, J.; Rocher, A.; Rockosi, C.; Roe, N. A.; Rosado-Marin, A.; Ross, A. J.; Rossi, G.; Ruggeri, R.; Ruhlmann-Kleider, V.; Samushia, L.; Sanchez, E.; Saulder, C.; Schlafly, E. F.; Schlegel, D.; Schubnell, M.; Seo, H.; Shafieloo, A.; Sharples, R.; Silber, J.; Slosar, A.; Smith, A.; Sprayberry, D.; Tan, T.; Tarlé, G.; Taylor, P.; Trusov, S.; Ureña-López, L. A.; Vaisakh, R.; Valcin, D.; Valdes, F.; Vargas-Magaña, M.; Verde, L.; Walther, M.; Wang, B.; Wang, M. S.; Weaver, B. A.; Weaverdyck, N.; Wechsler, R. H.; Weinberg, D. H.; White, M.; Yu, J.; Yu, Y.; Yuan, S.; Yèche, C.; Zaborowski, E. A.; Zarrouk, P.; Zhang, H.; Zhao, C.; Zhao, R.; Zhou, R.; Zhuang, T.; Zou, H.
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Abstract
We present cosmological results from the measurement of baryon acoustic oscillations (BAO) in galaxy, quasar and Lyman-$\alpha$ forest tracers from the first year of observations from the Dark Energy Spectroscopic Instrument (DESI), to be released in the DESI Data Release 1. DESI BAO provide robust measurements of the transverse comoving distance and Hubble rate, or their combination, relative to the sound horizon, in seven redshift bins from over 6 million extragalactic objects in the redshift range $0.1-1$ and $w_a<0$. This preference is 2.6$\sigma$ for the DESI+CMB combination, and persists or grows when SN~Ia are added in, giving results discrepant with the $\Lambda$CDM model at the $2.5\sigma$, $3.5\sigma$ or $3.9\sigma$ levels for the addition of Pantheon+, Union3, or DES-SN5YR datasets respectively. For the flat $\Lambda$CDM model with the sum of neutrino mass $\sum m_\nu$ free, combining the DESI and CMB data yields an upper limit $\sum m_\nu < 0.072$ $(0.113)$ eV at 95% confidence for a $\sum m_\nu>0$ $(\sum m_\nu>0.059)$ eV prior. These neutrino-mass constraints are substantially relaxed in models beyond $\Lambda$CDM. [Abridged.]
Comment: This DESI Collaboration Key Publication is part of the 2024 publication series using the first year of observations (see https://data.desi.lbl.gov/doc/papers). Typos corrected and a new figure and discussion added to Appendix A
Comment: This DESI Collaboration Key Publication is part of the 2024 publication series using the first year of observations (see https://data.desi.lbl.gov/doc/papers). Typos corrected and a new figure and discussion added to Appendix A