Dark Energy Survey Year 3 results: Cosmological constraints from galaxy clustering and weak lensing

Journal Article · Thu Jan 13 00:00:00 EST 2022 · Physical Review. D.

DOI:https://doi.org/10.1103/physrevd.105.023520· OSTI ID:1862311

Abbott, T.  M. C.; Aguena, M.; Alarcon, A.; Allam, S.; Alves, O.; Amon, A.; Andrade-Oliveira, F.; Annis, J.; Avila, S.; Bacon, D.; Baxter, E.; Bechtol, K.; Becker, M.  R.; Bernstein, G.  M.; Bhargava, S.; Birrer, S.; Blazek, J.; Brandao-Souza, A.; Bridle, S.  L.; Brooks, D. ; Buckley-Geer, E.; Burke, D.  L.; Camacho, H.; Campos, A.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F.  J.; Cawthon, R.; Chang, C.; Chen, A.; Chen, R.; Choi, A.; Conselice, C.; Cordero, J.; Costanzi, M.; Crocce, M.; da Costa, L.  N.; da Silva Pereira, M.  E.; Davis, C.; Davis, T.  M.; De Vicente, J.; DeRose, J.; Desai, S.; Di Valentino, E.; Diehl, H.  T.; Dietrich, J.  P.; Dodelson, S.; Doel, P.; Doux, C.; Drlica-Wagner, A.; Eckert, K.; Eifler, T.  F.; Elsner, F.; Elvin-Poole, J.; Everett, S.; Evrard, A.  E.; Fang, X.; Farahi, A.; Fernandez, E.; Ferrero, I.; Ferté, A.; Fosalba, P.; Friedrich, O.; Frieman, J.; García-Bellido, J.; Gatti, M.; Gaztanaga, E.; Gerdes, D.  W.; Giannantonio, T.; Giannini, G.; Gruen, D.; Gruendl, R.  A.; Gschwend, J.; Gutierrez, G.; Harrison, I.; Hartley, W.  G.; Herner, K.; Hinton, S.  R.; Hollowood, D.  L.; Honscheid, K.; Hoyle, B.; Huff, E.  M.; Huterer, D.; Jain, B.; James, D.  J.; Jarvis, M.; Jeffrey, N.; Jeltema, T.; Kovacs, A.; Krause, E.; Kron, R.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Leget, P. -F.; Lemos, P.; Liddle, A.  R.; Lidman, C.; Lima, M.; Lin, H.; MacCrann, N.; Maia, M.  A. G.; Marshall, J.  L.; Martini, P.; McCullough, J.; Melchior, P.; Mena-Fernández, J.; Menanteau, F.; Miquel, R.; Mohr, J.  J.; Morgan, R.; Muir, J.; Myles, J.; Nadathur, S.; Navarro-Alsina, A.; Nichol, R.  C.; Ogando, R.  L. C.; Omori, Y.; Palmese, A.; Pandey, S.; Park, Y.; Paz-Chinchón, F.; Petravick, D.; Pieres, A.; Plazas Malagón, A.  A.; Porredon, A.; Prat, J.; Raveri, M.; Rodriguez-Monroy, M.; Rollins, R.  P.; Romer, A.  K.; Roodman, A.; Rosenfeld, R.; Ross, A.  J.; Rykoff, E.  S.; Samuroff, S.; Sánchez, C.; Sanchez, E.; Sanchez, J.; Sanchez Cid, D.; Scarpine, V.; Schubnell, M.; Scolnic, D.; Secco, L.  F.; Serrano, S.; Sevilla-Noarbe, I.; Sheldon, E.; Shin, T.; Smith, M.; Soares-Santos, M.; Suchyta, E.; Swanson, M.  E. C.; Tabbutt, M.; Tarle, G.; Thomas, D.; To, C.; Troja, A.; Troxel, M.  A.; Tucker, D.  L.; Tutusaus, I.; Varga, T.  N.; Walker, A.  R.; Weaverdyck, N.; Wechsler, R.; Weller, J.; Yanny, B.; Yin, B.; Zhang, Y.; Zuntz, J.

In this work, we present the first cosmology results from large-scale structure using the full $5000{\mathrm{deg}}^2$ of imaging data from the Dark Energy Survey (DES) Data Release 1. We perform an analysis of large-scale structure combining three two-point correlation functions ( $3\times 2\mathrm{pt}$): (i) cosmic shear using 100 million source galaxies, (ii) galaxy clustering, and (iii) the cross-correlation of source galaxy shear with lens galaxy positions, galaxy–galaxy lensing. To achieve the cosmological precision enabled by these measurements has required updates to nearly every part of the analysis from DES Year 1, including the use of two independent galaxy clustering samples, modeling advances, and several novel improvements in the calibration of gravitational shear and photometric redshift inference. The analysis was performed under strict conditions to mitigate confirmation or observer bias; we describe specific changes made to the lens galaxy sample following unblinding of the results and tests of the robustness of our results to this decision. We model the data within the flat $\mathrm{\Lambda }\mathrm{CDM}$ and $w\mathrm{CDM}$ cosmological models, marginalizing over 25 nuisance parameters. We find consistent cosmological results between the three two-point correlation functions; their combination yields clustering amplitude $S_8=0.776_{-0.017}^{+0.017}$ and matter density ${\mathrm{\Omega }}_{\mathrm{m}}=0.339_{-0.031}^{+0.032}$ in $\mathrm{\Lambda }\mathrm{CDM}$, mean with 68% confidence limits; $S_8=0.775_{-0.024}^{+0.026}$, ${\mathrm{\Omega }}_{\mathrm{m}}=0.352_{-0.041}^{+0.035}$, and dark energy equation-of-state parameter $w=-0.98_{-0.20}^{+0.32}$ in $w\mathrm{CDM}$. These constraints correspond to an improvement in signal-to-noise of the DES Year 3 $3\times 2\mathrm{pt}$ data relative to DES Year 1 by a factor of 2.1, about 20% more than expected from the increase in observing area alone. This combination of DES data is consistent with the prediction of the model favored by the Planck 2018 cosmic microwave background (CMB) primary anisotropy data, which is quantified with a probability-to-exceed $p=0.13$–0.48. We find better agreement between DES $3\times 2\mathrm{pt}$ and Planck than in DES Y1, despite the significantly improved precision of both. When combining DES $3\times 2\mathrm{pt}$ data with available baryon acoustic oscillation, redshift-space distortion, and type Ia supernovae data, we find $p=0.34$. Combining all of these datasets with Planck CMB lensing yields joint parameter constraints of $S_8=0.812_{-0.008}^{+0.008}$, ${\mathrm{\Omega }}_{\mathrm{m}}=0.306_{-0.005}^{+0.004}$, $h=0.680_{-0.003}^{+0.004}$, and $\Sigma m_{\nu }<0.13\mathrm{eV}$ (95% C.L.) in $\mathrm{\Lambda }\mathrm{CDM}$; $S_8=0.812_{-0.008}^{+0.008}$, ${\mathrm{\Omega }}_{\mathrm{m}}=0.302_{-0.006}^{+0.006}$, $h=0.687_{-0.007}^{+0.006}$, and $w=-1.031_{-0.027}^{+0.030}$ in $w\mathrm{CDM}$.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Basic Energy Sciences (BES); University of Chicago - Kavli Institute for Cosmological Physics; United Kingdom Science and Technology Facilities Council; National Science Foundation (NSF)
• Contributing Organization: DES Collaboration
• Grant/Contract Number: AC02-76SF00515; AC02-07CH11359; AC02-05CH11231; AC02-06CH11357; AC05-00OR22725; SC0010118; SC0019193
• OSTI ID: 1862311
• Alternate ID(s): OSTI ID: 1824143; OSTI ID: 1855981; OSTI ID: 1869054; OSTI ID: 1885267; OSTI ID: 1906915; OSTI ID: 1984436
• Report Number(s): FERMILAB-PUB-21-221-AE; DES-2020-0617; arXiv:2105.13549; AST-1138766; AST-1536171; 465376/2014-2; ESP2017-89838; PGC2018-094773; PGC2018-102021; SEV-2016-0588; SEV-2016-0597; MDM-2015-0509; 240672; 291329; 306478; DE-AC02-07CH11359; TRN: US2305522
• Journal Information: Physical Review. D., Vol. 105, Issue 2; ISSN 2470-0010
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
cosmological parameters
cosmology
dark energy
dark matter
large scale structure of the Universe