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Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing
Abbott, T. M. C.1; Abdalla, F. B.2,3; Alarcon, A.4; Aleksic, J.5; Allam, S.6; Allen, S.7; Amara, A.8; Annis, J.6; Asorey, J.9,10; Avila, S.11,12; Bacon, D.11; Balbinot, E.13; Banerji, M.14,15; Banik, N.6; Barkhouse, W.16; Baumer, M.7,17,18; Baxter, E.19; Bechtol, K.20; Becker, M. R.7,17; Benoit-Levy, A.3,21,22; Benson, B. A.6,23; Bernstein, G. M.19; Bertin, E.21,22; Blazek, J.24,25; Bridle, S. L.26; Brooks, D.3; Brout, D.19; Buckley-Geer, E.6; Burke, D. L.17,18; Busha, M. T.17; Campos, A.27; Capozzi, D.11; Rosell, A. Carnero28,29; Kind, M. Carrasco30,31; Carretero, J.5; Castander, F. J.4; Cawthon, R.23; Chang, C.23; Chen, N.23; Childress, M.32; Choi, A.25; Conselice, C.33; Crittenden, R.11; Crocce, M.4; Cunha, C. E.17; D'Andrea, C. B.19; da Costa, L. N.28,29; Das, R.34; Davis, T. M.9,10; Davis, C.17; De Vicente, J.35; DePoy, D. L.36,37; DeRose, J.7,17; Desai, S.38; Diehl, H. T.6; Dietrich, J. P.39,40; Dodelson, S.6,23; Doel, P.3; Drlica-Wagner, A.6; Eifler, T. F.41,42; Elliott, A. E.43; Elsner, F.3; Elvin-Poole, J.26; Estrada, J.6; Evrard, A. E.44,45; Fang, Y.19; Fernandez, E.5; Ferte, A.45; Finley, D. A.6; Flaugher, B.6; Fosalba, P.4; Friedrich, O.46,47; Frieman, J.6,23; Garcia-Bellido, J.12; Garcia-Fernandez, M.35; Gatti, M.5; Gaztanaga, E.4; Gerdes, D. W.34,44; Giannantonio, T.14,15,46; Gill, M. S. S.18; Glazebrook, K.48; Goldstein, D. A.49,50; Gruen, D.17,18; Gruendl, R. A.34,44; Gschwend, J.28,29; Gutierrez, G.6; Hamilton, S.34; Hartley, W. G.3,8; Hinton, S. R.9; Honscheid, K.25,43; Hoyle, B.46; Huterer, D.34; Jain, B.19; James, D. J.51; Jarvis, M.19; Jeltema, T.52; Johnson, M. D.30; Johnson, M. W. G.30; Kacprzak, T.8; Kent, S.6,23; Kim, A. G.50; King, A.9; Kirk, D.3; Kokron, N.53; Kovacs, A.5; Krause, E.17; Krawiec, C.19; Kremin, A.34; Kuehn, K.54; Kuhlmann, S.55; Kuropatkin, N.6; Lacasa, F.27; Lahav, O.3; Li, T. S.6; Liddle, A. R.45; Lidman, C.10,54; Lima, M.28,53; Lin, H.6; MacCrann, N.25,43; Maia, M. A. G.28,29; Makler, M.56; Manera, M.3; March, M.19; Marshall, J. L.36,37; Martini, P.25,57; McMahon, R. G.14,15; Melchior, P.58; Menanteau, F.30,31; Miquel, R.5,59; Miranda, V.19; Mudd, D.57; Muir, J.34; Moller, A.10,60; Neilsen, E.6; Nichol, R. C.11; Nord, B.6; Nugent, P.50; Ogando, R. L. C.28,29; Palmese, A.3; Peacock, J.45; Peiris, H. V.3; Peoples, J.6; Percival, W. J.11; Petravick, D.30; Plazas, A. A.42; Porredon, A.4; Prat, J.5; Pujol, A.4; Rau, M. M.46; Refregier, A.8; Ricker, P. M.30,31; Roe, N.50; Rollins, R. P.26; Romer, A. K.61; Roodman, A.17,18; Rosenfeld, R.27,28; Ross, A. J.25; Rozo, E.62; Rykoff, E. S.17,18; Sako, M.19; Salvador, A. I.35; Samuroff, S.26; Sanchez, C.5; Sanchez, E.35; Santiago, B.28,63; Scarpine, V.6; Schindler, R.18; Scolnic, D.23; Secco, L. F.19; Serrano, S.4; Sevilla-Noarbe, I.35; Sheldon, E.64; Smith, R. C.1; Smith, M.32; Smith, J.65; Soares-Santos, M.6; Sobreira, F.28,66; Suchyta, E.67; Tarle, G.34; Thomas, D.11; Troxel, M. A.25,43; Tucker, D. L.6; Tucker, B. E.10,60; Uddin, S. A.10,68; Varga, T. N.46,47; Vielzeuf, P.5; Vikram, V.55; Vivas, A. K.1; Walker, A. R.1; Wang, M.6; Wechsler, R. H.7,17,18; Weller, J.39,46,47; Wester, W.6; Wolf, R. C.19; Yanny, B.6; Yuan, F.10,60; Zenteno, A.1; Zhang, B.10,60; Zhang, Y.6; Zuntz, J.45
2018-08-27
Source PublicationPHYSICAL REVIEW D
ISSN2470-0010
Volume98Issue:4Pages:31
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 Lambda CDM and wCDM cosmologies, marginalizing over 20 nuisance parameters, varying 6 (for Lambda CDM) or 7 (for wCDM) cosmological parameters including the neutrino mass density and including the 457 x 457 element analytic covariance matrix. We find consistent cosmological results from these three two-point functions and from their combination obtain S-8 equivalent to sigma(8) (Omega(m)/0.3)(0.5) = 0.773(-0.020)(+0.026) and Omega(m) = 0.267(-0.017)(+0.030) for Lambda CDM; for wCDM, we find S-8 = 0.782(-0.024)(+0.036) , Omega(m) = 0.284(-0.030)(+0.033), and w = -0.82(-0.20)(+0.21) at 68% C.L. The precision of these DES Y1 constraints 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 Omega(m) are lower than the central values from Planck for both Lambda CDM and wCDM, the Bayes factor indicates that the DES Y1 and Planck data sets are consistent with each other in the context of Lambda CDM. Combining DES Y1 with Planck, baryonic acoustic oscillation measurements from SDSS, 6dF, and BOSS and type Ia supernovae from the Joint Lightcurve Analysis data set, we derive very tight constraints on cosmological parameters: S-8 = 0.802 +/- 0.012 and Omega(m) = 0.298 +/- 0.007 in Lambda CDM and w = -1.00(-0.04)(+0.05) in wCDM. Upcoming Dark Energy Survey analyses will provide more stringent tests of the Lambda CDM model and extensions such as a time-varying equation of state of dark energy or modified gravity.

DOI10.1103/PhysRevD.98.043526
WOS KeywordSCIENCE VERIFICATION DATA ; DIGITAL SKY SURVEY ; LARGE-SCALE STRUCTURE ; MASS CORRELATION-FUNCTION ; POWER-SPECTRUM ; COSMIC SHEAR ; PARAMETER CONSTRAINTS ; SELF-CALIBRATION ; PHOTOMETRIC REDSHIFTS ; ACCELERATING UNIVERSE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000442810800005
PublisherAMER PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/21795
Collection中国科学院紫金山天文台
Corresponding AuthorAbbott, T. M. C.
Affiliation1.Cerro Tololo Interamer Observ, Natl Opt Astron Observ, Casilla 603, La Serena, Chile
2.Rhodes Univ, Dept Phys & Elect, POB 94, ZA-6140 Grahamstown, South Africa
3.UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
4.CSIC, IEEC, Inst Space Sci, Campus UAB,Carrer Can Magrans S-N, Barcelona 08193, Spain
5.Barcelona Inst Sci & Technol, IFAE, Campus UAB, Bellaterra 08193, Barcelona, Spain
6.Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA
7.Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA
8.Swiss Fed Inst Technol, Dept Phys, Wolfgang Pauli Str 16, CH-8093 Zurich, Switzerland
9.Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia
10.ARC Ctr Excellence All Sky Astrophys CAASTRO, Perth, WA, Australia
11.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England
12.UAM, CSIC, Inst Fis Teor, Madrid 28049, Spain
13.Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England
14.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
15.Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England
16.Univ North Dakota, Dept Phys & Astrophys, Witmer Hall, Grand Forks, ND 58202 USA
17.Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA
18.SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA
19.Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
20.LSST, 933 North Cherry Ave, Tucson, AZ 85721 USA
21.CNRS, Inst Astrophys Paris, UMR 7095, F-75014 Paris, France
22.UPMC Univ Paris 06, Sorbonne Univ, Inst Astrophys Paris, UMR 7095, F-75014 F- Paris, France
23.Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA
24.EPFL, Lab Astrophys, Inst Phys, Observ Sauverny, CH-1290 Versoix, Switzerland
25.Ohio State Univ, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA
26.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Oxford Rd, Oxford M13 9PL, England
27.Univ Estadual Paulista, Inst Fis Teor, ICTP South Amer Inst Fundamental Res, Sao Paulo, Brazil
28.Lab Interinst Astron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
29.Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
30.Natl Ctr Supercomp Applicat, 1205 West Clark St, Urbana, IL 61801 USA
31.Univ Illinois, Dept Astron, 1002 West Green St, Urbana, IL 61801 USA
32.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
33.Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
34.Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
35.Ctr Invest Energet Medioambient & Tecnol CIEMAT, Madrid, Spain
36.Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA
37.Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA
38.IIT Hyderabad, Dept Phys, Kandi 502285, Telangana, India
39.Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany
40.Ludwig Maximilians Univ Munchen, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany
41.CALTECH, Dept Phys, Pasadena, CA 91125 USA
42.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
43.Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
44.Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA
45.Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland
46.Ludwig Maximilians Univ Munchen, Sternwarte, Fak Phys, Scheinerstr 1, D-81679 Munich, Germany
47.Max Planck Inst Extraterr Phys, Giessenbachstr, D-85748 Garching, Germany
48.Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia
49.Univ Calif Berkeley, Dept Astron, 501 Campbell Hall, Berkeley, CA 94720 USA
50.Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA
51.Univ Washington, Astron Dept, Box 351580, Seattle, WA 98195 USA
52.Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
53.Univ Sao Paulo, Inst Fis, Dept Fis Matemat, CP 66318, BR-05314970 Sao Paulo, SP, Brazil
54.Australian Astron Observ, N Ryde, NSW 2113, Australia
55.Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA
56.Ctrt Brasileiro Pesquisas Fisicas, ICRA, Rua Dr Xavier Sigaud 150, BR-22290 Rio De Janeiro, RJ, Brazil
57.Ohio State Univ, Dept Astron, Columbus, OH 43210 USA
58.Princeton Univ, Dept Astrophys Sci, Peyton Hall, Princeton, NJ 08544 USA
59.Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain
60.Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2601, Australia
61.Univ Sussex, Dept Phys & Astron, Pevensey Bldg, Brighton BN1 9QH, E Sussex, England
62.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
63.Univ Fed Rio Grande do Sul, Inst Fis, Caixa Postal 15051, BR-91501970 Porto Alegre, RS, Brazil
64.Brookhaven Natl Lab, Bldg 510, Upton, NY 11973 USA
65.Austin Peay State Univ, Dept Phys Astron, POB 4608 Clarksville, Clarksville, TN 37044 USA
66.Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazil
67.Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA
68.Chinese Acad Sci, Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Abbott, T. M. C.,Abdalla, F. B.,Alarcon, A.,et al. Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing[J]. PHYSICAL REVIEW D,2018,98(4):31.
APA Abbott, T. M. C..,Abdalla, F. B..,Alarcon, A..,Aleksic, J..,Allam, S..,...&Zuntz, J..(2018).Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing.PHYSICAL REVIEW D,98(4),31.
MLA Abbott, T. M. C.,et al."Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing".PHYSICAL REVIEW D 98.4(2018):31.
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