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Cited by 1,213Cosmology and Gravitation TheoriesGalaxies: Formation, Evolution, PhenomenaDark Matter and Cosmic Phenomena

Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing

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Abbott, T. M. C., Abdalla, F. B., Alarcon, A., Aleksić, J., Allam, S., Allen, S., Amara, A., Annis, J. +193 more·2018·Physical Review D
DOI 10.1103/physrevd.98.043526
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Abstract

We present cosmological results from a combined analysis of galaxy clustering and weak gravitational lensing, using 1321 deg$^2$ of $griz$ imaging data from the first year of the Dark Energy Survey (DES Y1). We combine three two-point functions: (i) the cosmic shear correlation function of 26 million source galaxies in four redshift bins, (ii) the galaxy angular autocorrelation function of 650,000 luminous red galaxies in five redshift bins, and (iii) the galaxy-shear cross-correlation of luminous red galaxy positions and source galaxy shears. To demonstrate the robustness of these results, we use independent pairs of galaxy shape, photometric redshift estimation and validation, and likelihood analysis pipelines. To prevent confirmation bias, the bulk of the analysis was carried out while blind to the true results; we describe an extensive suite of systematics checks performed and passed during this blinded phase. The data are modeled in flat $Λ$CDM and $w$CDM cosmologies, marginalizing over 20 nuisance parameters, varying 6 (for $Λ$CDM) or 7 (for $w$CDM) cosmological parameters including the neutrino mass density and including the 457 $\times$ 457 element analytic covariance matrix. We find consistent cosmological results from these three two-point functions, and from their combination obtain $S_8 \equiv σ_8 (Ω_m/0.3)^{0.5} = 0.783^{+0.021}_{-0.025}$ and $Ω_m = 0.264^{+0.032}_{-0.019}$ for $Λ$CDM for $w$CDM, we find $S_8 = 0.794^{+0.029}_{-0.027}$, $Ω_m = 0.279^{+0.043}_{-0.022}$, and $w=-0.80^{+0.20}_{-0.22}$ at 68% CL. The precision of these DES Y1 results rivals that from the Planck cosmic microwave background measurements, allowing a comparison of structure in the very early and late Universe on equal terms. Although the DES Y1 best-fit values for $S_8$ and $Ω_m$ are lower than the central values from Planck ...

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  • Joint analysis of shear-shear, galaxy-shear, and galaxy-galaxy correlation functions has become standard in analyses of precursor data sets.

    “The joint analysis of shear -shear, galaxy -shear, and galaxy -galaxy correlation functions has become standard in analyses of precursor data sets ( e.g., DES Collaboration et al. 2018; Joudaki et al. 2018 ) .”

    From LSST: From Science Drivers to Reference Design and Anticipated Data Products (2019) · cites this paper as DES Collaboration et al. 2018

  • DES provides a compelling proof of concept for the LSST dark energy program.

    “The DES ( see, e.g., DES Collaboration et al. 2018, and references therein ) provides a compelling proof of concept for this program.”

    From LSST: From Science Drivers to Reference Design and Anticipated Data Products (2019) · cites this paper as DES Collaboration et al. 2018

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Abbott, T. M. C., Abdalla, F. B., Alarcon, A., Aleksić, J., Allam, S., Allen, S., Amara, A., Annis, J., Asorey, J., Avila, S., Bacon, D., Balbinot, E., Banerji, M., Banik, N., Barkhouse, W., Baumer, M., Baxter, E., Bechtol, K., Becker, M. R., Benoit-Lévy, A., Benson, B. A., Bernstein, G. M., Bertin, E., Blazek, J., Bridle, S. L., Brooks, D., Brout, D., Buckley-Geer, E., Burke, D. L., Busha, M. T., Campos, A., Capozzi, D., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Cawthon, R., Chang, C., Chen, N., Childress, M., Choi, A., Conselice, C., Crittenden, R., Crocce, M., Cunha, C. E., D’Andrea, C. B., da Costa, L. N., Das, R., Davis, T. M., Davis, C., De Vicente, J., DePoy, D. L., DeRose, J., Desai, S., Diehl, H. T., Dietrich, J. P., Dodelson, S., Doel, P., Drlica-Wagner, A., Eifler, T. F., Elliott, A. E., Elsner, F., Elvin-Poole, J., Estrada, J., Evrard, A. E., Fang, Y., Fernandez, E., Ferté, A., Finley, D. A., Flaugher, B., Fosalba, P., Friedrich, O., Frieman, J., García-Bellido, J., Garcia-Fernandez, M., Gatti, M., Gaztanaga, E., Gerdes, D. W., Giannantonio, T., Gill, M. S. S., Glazebrook, K., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hamilton, S., Hartley, W. G., Hinton, S. R., Honscheid, K., Hoyle, B., Huterer, D., Jain, B., James, D. J., Jarvis, M., Jeltema, T., Johnson, M. D., Johnson, M. W. G., Kacprzak, T., Kent, S., Kim, A. G., King, A., Kirk, D., Kokron, N., Kovacs, A., Krause, E., Krawiec, C., Kremin, A., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lacasa, F., Lahav, O., Li, T. S., Liddle, A. R., Lidman, C., Lima, M., Lin, H., MacCrann, N., Maia, M. A. G., Makler, M., Manera, M., March, M., Marshall, J. L., Martini, P., McMahon, R. G., Melchior, P., Menanteau, F., Miquel, R., Miranda, V., Mudd, D., Muir, J., Möller, A., Neilsen, E., Nichol, R. C., Nord, B., Nugent, P., Ogando, R. L. C., Palmese, A., Peacock, J., Peiris, H. V., Peoples, J., Percival, W. J., Petravick, D., Plazas, A. A., Porredon, A., Prat, J., Pujol, A., Rau, M. M., Refregier, A., Ricker, P. M., Roe, N., Rollins, R. P., Romer, A. K., Roodman, A., Rosenfeld, R., Ross, A. J., Rozo, E., Rykoff, E. S., Sako, M., Salvador, A. I., Samuroff, S., Sánchez, C., Sanchez, E., Santiago, B., Scarpine, V., Schindler, R., Scolnic, D., Secco, L. F., Serrano, S., Sevilla-Noarbe, I., Sheldon, E., Smith, R. C., Smith, M., Smith, J., Soares-Santos, M., Sobreira, F., Suchyta, E., Tarle, G., Thomas, D., Troxel, M. A., Tucker, D. L., Tucker, B. E., Uddin, S. A., Varga, T. N., Vielzeuf, P., Vikram, V., Vivas, A. K., Walker, A. R., Wang, M., Wechsler, R. H., Weller, J., Wester, W., Wolf, R. C., Yanny, B., Yuan, F., Zenteno, A., Zhang, B., Zhang, Y., Zuntz, J., & Dark Energy Survey Collaboration <a href="#n1">1</a>
Affiliations
  • Cerro Tololo Inter-American Observatory (CL)
  • Rhodes University (ZA)
  • Institute of Space Sciences (ES)
  • Institute for High Energy Physics (ES)
  • Fermi National Accelerator Laboratory (US)
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  • University of Pennsylvania (US)
  • Large Synoptic Survey Telescope Corporation (US)
  • Kavli Institute for Particle Astrophysics and Cosmology (US)
  • Centre National de la Recherche Scientifique (FR)
  • École Polytechnique Fédérale de Lausanne (CH)
  • University of Manchester (GB)
  • University College London (GB)
  • Laboratório Interinstitucional de e-Astronomia (BR)
  • University of Chicago (US)
  • University of Southampton (GB)
  • The Ohio State University (US)
  • University of Nottingham (GB)
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  • Texas A&M University (US)
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  • Excellence Cluster Universe (DE)
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  • Max Planck Institute for Extraterrestrial Physics (DE)
  • Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (ES)
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  • Chinese Academy of Sciences (CN)
ORCID
Venue
Physical Review D
Publisher
American Physical Society (APS)
Published
2018-08-27
Volume
98
Issue
4
Pages
043526
ISSN
  • 2470-0010 (ISSN-L)
  • 2470-0029
DOI
10.1103/physrevd.98.043526
OpenAlex
W2744012041
Cited by
1,213
References
153
Citations by year
2026: 51 · 2025: 96 · 2024: 106 · 2023: 103 · 2022: 128 · 2021: 231 · 2020: 189 · 2019: 190 · 2018: 102 · 2017: 11 · 2016: 4 · 2015: 1
FWCI
95.78
Type
journal article
Language
en
Open access
Licence
Locations
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  • arXiv (Cornell University) (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Americanae (AECID Library) (publishedVersion, other-oa)
  • Research Archive of Indian Institute of Technology Hyderabad (Indian Institute of Technology Hyderabad) (acceptedVersion)
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Funders
  • U.S. Department of Energy (DE-AC02-05CH11231, DE-AC02-07CH11359)
  • National Science Foundation (AST-1138766, AST-1536171)
  • Science and Technology Facilities Council
  • Higher Education Funding Council for England
  • Financiadora de Estudos e Projetos
  • Ministry of Science and Education of Spain
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
Keywords
Dark Energy Survey, cosmological constraints, galaxy clustering, weak gravitational lensing, dark energy, large-scale structure

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