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Cosmology from large-scale galaxy clustering and galaxy-galaxy lensing with Dark Energy Survey Science Verification data


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US Department of Energy

US National Science Foundation

Ministry of Science and Education of Spain

Science and Technology Facilities Council of the United Kingdom

Higher Education Funding Council for England

National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign

Kavli Institute of Cosmological Physics at the University of Chicago

Center for Cosmology and Astro-Particle Physics at the Ohio State University

Center for Particle Cosmology at the University of Pennsylvania

Warren Center at the University of Pennsylvania

Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University

Financiadora de Estudos e Projetos

Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ministerio da Ciencia e Tecnologia

Deutsche Forschungsgemeinschaft

National Science Foundation

MINECO

Centro de Excelencia Severo Ochoa

European Union

Argonne National Laboratory

University of California at Santa Cruz

University of Cambridge

University of Chicago

University College London

DES-Brazil Consortium

Eidgenossische Technische Hochschule (ETH) Zurich

Fermi National Accelerator Laboratory

University of Edinburgh

University of Illinois at Urbana-Champaign

Institut de Ciencies de l'Espai (IEEC/CSIC)

Institut de Fisica d'Altes Energies

Lawrence Berkeley National Laboratory

Ludwig-Maximilians Universitat

associated Excellence Cluster Universe

University of Michigan

National Optical Astronomy Observatory

University of Nottingham

Ohio State University

University of Pennsylvania

University of Portsmouth

University of Sussex

Texas AM University

SLAC National Accelerator Laboratory

Stanford University

Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas-Madrid

Science and Technology Facilities Council

ICREA

We present cosmological constraints from the Dark Energy Survey (DES) using a combined analysis of angular clustering of red galaxies and their cross-correlation with weak gravitational lensing of background galaxies. We use a 139 deg(2) contiguous patch of DES data from the Science Verification (SV) period of observations. Using large-scale measurements, we constrain the matter density of the Universe as Omega(m) = 0.31 +/- 0.09 and the clustering amplitude of the matter power spectrum as sigma(8) = 0.74 +/- 0.13 after marginalizing over seven nuisance parameters and three additional cosmological parameters. This translates into S-8 = sigma(8)(Omega(m)/0.3)(0.16) = 0.74 +/- 0.12 for our fiducial lens redshift bin at 0.35 < z < 0.5, while S-8 = 0.78 +/- 0.09 using two bins over the range 0.2 < z < 0.5. We study the robustness of the results under changes in the data vectors, modelling and systematics treatment, including photometric redshift and shear calibration uncertainties, and find consistency in the derived cosmological parameters. We show that our results are consistent with previous cosmological analyses from DES and other data sets and conclude with a joint analysis of DES angular clustering and galaxy-galaxy lensing with Planck Cosmic Microwave Background data, baryon accoustic oscillations and Supernova Type Ia measurements.

Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

Barcelona Inst Sci & Technol, IFAE, Campus UAB, E-08193 Barcelona, Spain

Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

IEEC CSIC, Inst Ciencies Espai, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain

Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England

ETH, Dept Phys, Wolfgang Pauli Str 16, CH-8093 Zurich, Switzerland

Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA

Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA

Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

Univ Chicago, Dept Phys, 5640 South Ellis Ave, Chicago, IL 60637 USA

CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England

Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England

SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain

Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

Brookhaven Natl Lab, Bldg 510, Upton, NY 11973 USA

Natl Opt Astron Observ, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile

Rhodes Univ, Dept Phys & Elect, POB 94, ZA-6140 Grahamstown, South Africa

CNRS, Inst Astrophys Paris, UMR 7095, F-75014 Paris, France

UPMC Univ Paris 06, Sorbonne Univ, UMR 7095, Inst Astrophys Paris, F-75014 Paris, France

Lab Interinst E Astron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

Univ Illinois, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA

Natl Ctr Supercomp Applicat, 1205 West Clark St, Urbana, IL 61801 USA

Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England

Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany

Ludwig Maximilians Univ Munchen, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany

Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

Australian Astron Observ, N Ryde, NSW 2113, Australia

Univ Sao Paulo, Inst Fis, Dept Fis Matemat, CP 66318, BR-05314970 Sao Paulo, SP, Brazil

Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA

Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

Princeton Univ, Dept Astrophys Sci, Peyton Hall, Princeton, NJ 08544 USA

Max Planck Inst Extraterr Phys, Giessenbachstr, D-85748 Garching, Germany

Univ Sussex, Dept Phys & Astron, Pevensey Bldg, Brighton BN1 9QH, E Sussex, England

Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain

Univ Estadual Paulista, ICTP South Amer Inst Fundamental Res, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil

Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA

Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA

Univ Estadual Paulista, ICTP South Amer Inst Fundamental Res, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil

National Science Foundation: AST-1138766

MINECO: AYA2012-39559

MINECO: ESP2013-48274

MINECO: FPA2013-47986

Centro de Excelencia Severo Ochoa: SEV-2012-0234

Science and Technology Facilities Council: ST/M001334/1

Science and Technology Facilities Council: ST/L000768/1

Document Type Journal article
Language English
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