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

The DES Collaboration

doi:10.1093/mnras/stw2464

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

The DES Collaboration

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Abstract

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 deg² 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 Ω _m = 0.31 ± 0.09 and the clustering amplitude of the matter power spectrum as σ8 = 0.74 ± 0.13 after marginalizing over seven nuisance parameters and three additional cosmological parameters. This translates into S8 = σ8(Ω_m/0.3)^0.16 = 0.74 ± 0.12 for our fiducial lens redshift bin at 0.35 < z < 0.5, while S₈ = 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.

Original language	English
Pages (from-to)	4045-4062
Number of pages	18
Journal	Monthly Notices of the Royal Astronomical Society
Volume	464
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stw2464
State	Published - Feb 1 2017

Funding

We are grateful for the extraordinary contributions of our CTIO colleagues and the DECam Construction, Commissioning and SV teams in achieving the excellent instrument and telescope conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the DES Data Management group. Funding for the DES Projects has been provided by the US Department of Energy, the US National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology FacilitiesCouncil of theUnitedKingdom, theHigher Education Funding Council for England, the NationalCenter for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Center for Particle Cosmology and the Warren Center at the University of Pennsylvania, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnol ógico and the Ministério da Cîencia e Tecnologia, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the DES. The DES data management system is supported by the National Science Foundation underGrant no. AST-1138766. TheDES participants from Spanish institutions are partially supported by MINECO under grants AYA2012-39559, ESP2013-48274, FPA2013-47986, and Centro de Excelencia Severo Ochoa SEV-2012-0234, some of which include ERDF funds from the European Union. The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the Eidgenössische Technische Hochschule (ETH) Zürich, Fermi National Accelerator Laboratory, the University of Edinburgh, the University of Illinois at Urbana-Champaign, the Institut de Ciències de l'Espai (IEEC/CSIC), the Institut de Física d'Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universität and the associated Excellence Cluster Universe, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, and Texas A&M University.

Funders	Funder number
Center for Particle Cosmology
Centro de Excelencia Severo Ochoa	SEV-2012-0234
Collaborating Institutions are Argonne National Laboratory
Institut de Ciències de l'Espai
Ludwig-Maximilians Universität
Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University
National Science Foundation	AST-1138766
U.S. Department of Energy
Directorate for Mathematical and Physical Sciences	1138766
University of Illinois at Urbana-Champaign
Stanford University
Fermilab
Lawrence Berkeley National Laboratory
University of California, Santa Cruz
University of Pennsylvania
Ohio State University
University of Chicago
University of Michigan
Texas A and M University
University of Portsmouth
National Centre for Supercomputing Applications
SLAC National Accelerator Laboratory
Science and Technology Facilities Council
Higher Education Funding Council for England
University College London
European Commission
University of Nottingham
University of Sussex
University of Edinburgh
Deutsche Forschungsgemeinschaft
Eidgenössische Technische Hochschule Zürich
Ministerio de Economía y Competitividad	FPA2013-47986, AYA2012-39559, ESP2013-48274
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Financiadora de Estudos e Projetos
Ministério da Ciência e Tecnologia
Ministry of Education and Science of Ukraine
European Regional Development Fund
Institut de Física d'Altes Energies

Keywords

Cosmological parameters
Gravitational lensing: weak
Large-scale structure of Universe

Access to Document

10.1093/mnras/stw2464

Cite this

@article{80e22d591d6145139c0bb3eca3518b58,

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

abstract = "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 deg2 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 Ω m = 0.31 ± 0.09 and the clustering amplitude of the matter power spectrum as σ8 = 0.74 ± 0.13 after marginalizing over seven nuisance parameters and three additional cosmological parameters. This translates into S8 = σ8(Ωm/0.3)0.16 = 0.74 ± 0.12 for our fiducial lens redshift bin at 0.35 < z < 0.5, while S8 = 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.",

keywords = "Cosmological parameters, Gravitational lensing: weak, Large-scale structure of Universe",

author = "{The DES Collaboration} and J. Kwan and C. Sanchez and J. Clampitt and J. Blazek and M. Crocce and B. Jain and J. Zuntz and A. Amara and Becker, {M. R.} and Bernstein, {G. M.} and C. Bonnett and J. DeRose and S. Dodelson and Eifler, {T. F.} and E. Gaztanaga and T. Giannantonio and D. Gruen and Hartley, {W. G.} and T. Kacprzak and D. Kirk and E. Krause and N. MacCrann and R. Miquel and Y. Park and Ross, {A. J.} and E. Rozo and Rykoff, {E. S.} and E. Sheldon and Troxel, {M. A.} and Wechsler, {R. H.} and Abbott, {T. M.C.} and Abdalla, {F. B.} and S. Allam and A. Benoit-L{\'e}vy and D. Brooks and Burke, {D. L.} and {Carnero Rosell}, A. and {Carrasco Kind}, M. and Cunha, {C. E.} and D'Andrea, {C. B.} and {da Costa}, {L. N.} and S. Desai and Diehl, {H. T.} and Dietrich, {J. P.} and P. Doel and Evrard, {A. E.} and E. Fernandez and Finley, {D. A.} and B. Flaugher and E. Suchyta",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.",

year = "2017",

month = feb,

day = "1",

doi = "10.1093/mnras/stw2464",

language = "English",

volume = "464",

pages = "4045--4062",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

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TY - JOUR

T1 - Cosmology from large-scale galaxy clustering and galaxy-galaxy lensing with Dark Energy Survey Science Verification data

AU - The DES Collaboration

AU - Kwan, J.

AU - Sanchez, C.

AU - Clampitt, J.

AU - Blazek, J.

AU - Crocce, M.

AU - Jain, B.

AU - Zuntz, J.

AU - Amara, A.

AU - Becker, M. R.

AU - Bernstein, G. M.

AU - Bonnett, C.

AU - DeRose, J.

AU - Dodelson, S.

AU - Eifler, T. F.

AU - Gaztanaga, E.

AU - Giannantonio, T.

AU - Gruen, D.

AU - Hartley, W. G.

AU - Kacprzak, T.

AU - Kirk, D.

AU - Krause, E.

AU - MacCrann, N.

AU - Miquel, R.

AU - Park, Y.

AU - Ross, A. J.

AU - Rozo, E.

AU - Rykoff, E. S.

AU - Sheldon, E.

AU - Troxel, M. A.

AU - Wechsler, R. H.

AU - Abbott, T. M.C.

AU - Abdalla, F. B.

AU - Allam, S.

AU - Benoit-Lévy, A.

AU - Brooks, D.

AU - Burke, D. L.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - da Costa, L. N.

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Doel, P.

AU - Evrard, A. E.

AU - Fernandez, E.

AU - Finley, D. A.

AU - Flaugher, B.

AU - Suchyta, E.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - 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 deg2 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 Ω m = 0.31 ± 0.09 and the clustering amplitude of the matter power spectrum as σ8 = 0.74 ± 0.13 after marginalizing over seven nuisance parameters and three additional cosmological parameters. This translates into S8 = σ8(Ωm/0.3)0.16 = 0.74 ± 0.12 for our fiducial lens redshift bin at 0.35 < z < 0.5, while S8 = 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.

AB - 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 deg2 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 Ω m = 0.31 ± 0.09 and the clustering amplitude of the matter power spectrum as σ8 = 0.74 ± 0.13 after marginalizing over seven nuisance parameters and three additional cosmological parameters. This translates into S8 = σ8(Ωm/0.3)0.16 = 0.74 ± 0.12 for our fiducial lens redshift bin at 0.35 < z < 0.5, while S8 = 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.

KW - Cosmological parameters

KW - Gravitational lensing: weak

KW - Large-scale structure of Universe

UR - http://www.scopus.com/inward/record.url?scp=85014822203&partnerID=8YFLogxK

U2 - 10.1093/mnras/stw2464

DO - 10.1093/mnras/stw2464

M3 - Article

AN - SCOPUS:85014822203

SN - 0035-8711

VL - 464

SP - 4045

EP - 4062

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

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

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