Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
Creators: name: DES Collaboration
name: Abbott, T. M. C.
name: Aguena, M.
name: Alarcon, A.
name: Allam, S.
name: Alves, O.
name: Amon, A.
name: Andrade-Oliveira, F.
name: Annis, J.
name: Avila, S.
name: Bacon, D.
name: Baxter, E.
name: Bechtol, K.
name: Becker, M. R.
name: Bernstein, G. M.
name: Bhargava, S.
name: Birrer, S.
name: Blazek, J.
name: Brandao-Souza, A.
name: Bridle, S. L.
name: Brooks, D.
name: Buckley-Geer, E.
name: Burke, D. L.
name: Camacho, H.
name: Campos, A.
name: Rosell, A. Carnero
name: Kind, M. Carrasco
name: Carretero, J.
name: Castander, F. J.
name: Cawthon, R.
name: Chang, C.
name: Chen, A.
name: Chen, R.
name: Choi, A.
name: Conselice, C.
name: Cordero, J.
name: Costanzi, M.
name: Crocce, M.
name: da Costa, L. N.
name: Pereira, M. E. da Silva
name: Davis, C.
name: Davis, T. M.
name: De Vicente, J.
name: DeRose, J.
name: Desai, S.
name: Di Valentino, E.
name: Diehl, H. T.
name: Dietrich, J. P.
name: Dodelson, S.
name: Doel, P.
name: Doux, C.
name: Drlica-Wagner, A.
name: Eckert, K.
name: Eifler, T. F.
name: Elsner, F.
name: Elvin-Poole, J.
name: Everett, S.
name: Evrard, A. E.
name: Fang, X.
name: Farahi, A.
name: Fernandez, E.
name: Ferrero, I.
name: Ferté, A.
name: Fosalba, P.
name: Friedrich, O.
name: Frieman, J.
name: García-Bellido, J.
name: Gatti, M.
name: Gaztanaga, E.
name: Gerdes, D. W.
name: Giannantonio, T.
name: Giannini, G.
name: Gruen, D.
name: Gruendl, R. A.
name: Gschwend, J.
name: Gutierrez, G.
name: Harrison, I.
name: Hartley, W. G.
name: Herner, K.
name: Hinton, S. R.
name: Hollowood, D. L.
name: Honscheid, K.
name: Hoyle, B.
name: Huff, E. M.
name: Huterer, D.
name: Jain, B.
name: James, D. J.
name: Jarvis, M.
name: Jeffrey, N.
name: Jeltema, T.
name: Kovacs, A.
name: Krause, E.
name: Kron, R.
name: Kuehn, K.
name: Kuropatkin, N.
name: Lahav, O.
name: Leget, P. -F.
name: Lemos, P.
name: Liddle, A. R.
name: Lidman, C.
name: Lima, M.
name: Lin, H.
name: MacCrann, N.
name: Maia, M. A. G.
name: Marshall, J. L.
name: Martini, P.
name: McCullough, J.
name: Melchior, P.
name: Mena-Fernández, J.
name: Menanteau, F.
name: Miquel, R.
name: Mohr, J. J.
name: Morgan, R.
name: Muir, J.
name: Myles, J.
name: Nadathur, S.
name: Navarro-Alsina, A.
name: Nichol, R. C.
name: Ogando, R. L. C.
name: Omori, Y.
name: Palmese, A.
name: Pandey, S.
name: Park, Y.
name: Paz-Chinchón, F.
name: Petravick, D.
name: Pieres, A.
name: Malagón, A. A. Plazas
name: Porredon, A.
name: Prat, J.
name: Raveri, M.
name: Rodriguez-Monroy, M.
name: Rollins, R. P.
name: Romer, A. K.
name: Roodman, A.
name: Rosenfeld, R.
name: Ross, A. J.
name: Rykoff, E. S.
name: Samuroff, S.
name: Sánchez, C.
name: Sanchez, E.
name: Sanchez, J.
name: Cid, D. Sanchez
name: Scarpine, V.
name: Schubnell, M.
name: Scolnic, D.
name: Secco, L. F.
name: Serrano, S.
name: Sevilla-Noarbe, I.
name: Sheldon, E.
name: Shin, T.
name: Smith, M.
name: Soares-Santos, M.
name: Suchyta, E.
name: Swanson, M. E. C.
name: Tabbutt, M.
name: Tarle, G.
name: Thomas, D.
name: To, C.
name: Troja, A.
name: Troxel, M. A.
name: Tucker, D. L.
name: Tutusaus, I.
name: Varga, T. N.
name: Walker, A. R.
name: Weaverdyck, N.
name: Wechsler, R.
name: Weller, J.
name: Yanny, B.
name: Yin, B.
name: Zhang, Y.
name: Zuntz, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present the first cosmology results from large-scale structure in the Dark Energy Survey (DES) spanning 5000 deg$^2$. We perform an analysis combining three two-point correlation functions (3$\times$2pt): (i) cosmic shear using 100 million source galaxies, (ii) galaxy clustering, and (iii) the cross-correlation of source galaxy shear with lens galaxy positions. The analysis was designed to mitigate confirmation or observer bias; we describe specific changes made to the lens galaxy sample following unblinding of the results. We model the data within the flat $Λ$CDM and $w$CDM cosmological models. 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 $Ω_{\mathrm{m}} = 0.339^{+0.032}_{-0.031}$ in $Λ$CDM, mean with 68% confidence limits; $S_8=0.775^{+0.026}_{-0.024}$, $Ω_{\mathrm{m}} = 0.352^{+0.035}_{-0.041}$, and dark energy equation-of-state parameter $w=-0.98^{+0.32}_{-0.20}$ in $w$CDM. 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 $p=0.13$ to $0.48$. When combining DES 3$\times$2pt data with available baryon acoustic oscillation, redshift-space distortion, and type Ia supernovae data, we find $p=0.34$. Combining all of these data sets with Planck CMB lensing yields joint parameter constraints of $S_8 = 0.812^{+0.008}_{-0.008}$, $Ω_{\mathrm{m}} = 0.306^{+0.004}_{-0.005}$, $h=0.680^{+0.004}_{-0.003}$, and $\sum m_ν&lt;0.13 \;\mathrm{eV\; (95\% \;CL)}$ in $Λ$CDM; $S_8 = 0.812^{+0.008}_{-0.008}$, $Ω_{\mathrm{m}} = 0.302^{+0.006}_{-0.006}$, $h=0.687^{+0.006}_{-0.007}$, and $w=-1.031^{+0.030}_{-0.027}$ in $w$CDM. (abridged)
description: See https://www.darkenergysurvey.org/des-year-3-cosmology-results-papers/ for the full DES Y3 3x2pt cosmology release. Matches version accepted in PRD