Imprint of DES superstructures on the cosmic microwave background

The DES Collaboration

doi:10.1093/mnras/stw2968

Imprint of DES superstructures on the cosmic microwave background

The DES Collaboration

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Small temperature anisotropies in the cosmic microwave background (CMB) can be sourced by density perturbations via the late-time integrated Sachs-Wolfe (ISW) effect. Large voids and superclusters are excellent environments to make a localized measurement of this tiny imprint. In some cases excess signals have been reported. We probed these claims with an independent data set, using the first year data of the Dark Energy Survey (DES) in a different footprint, and using a different superstructure finding strategy. We identified 52 large voids and 102 superclusters at redshifts 0.2 < z < 0.65. We used the Jubilee simulation to a priori evaluate the optimal ISW measurement configuration for our compensated top-hat filtering technique, and then performed a stacking measurement of the CMB temperature field based on the DES data. For optimal configurations, we detected a cumulative cold imprint of voids with ΔT_f ≈ -5.0 ± 3.7 μK and a hot imprint of superclusters ΔT_f ≈ 5.1 ± 3.2 μK; this is ~1.2σhigher than the expected |ΔT_f| ≈ 0.6 μK imprint of such superstructures in λ cold dark matter (λCDM). If we instead use an a posteriori selected filter size (R/R_v = 0.6), we can find a temperature decrement as large as δT_f ≈ -9.8 ± 4.7 μK for voids, which is ~2σ above λCDM expectations and is comparable to previous measurements made using Sloan Digital Sky Survey superstructure data.

Original language	English
Pages (from-to)	4166-4179
Number of pages	14
Journal	Monthly Notices of the Royal Astronomical Society
Volume	465
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stw2968
State	Published - Mar 11 2017
Externally published	Yes

Funding

Funding for this project was partially provided by the Spanish Ministerio de Economía y Competitividad (MINECO) under projects FPA2012-39684 and Centro de Excelencia Severo Ochoa SEV-2012-0234 and SEV-2012-0249. We thank Eduardo Rozo, Eli Rykoff, and Risa Wechsler for creating observed and simulated DES redMaGiC catalogues. We are also grateful for the insightful comments by Bhuvnesh Jain. The authors thank the Jubilee team for providing their LRG mock data and ISW maps based on their N-body simulation that was performed on the Juropa supercomputer of the Jülich Supercomputing Centre (JSC). This paper has gone through internal review by the DES collaboration. It has been assigned DES paper id DES-2016-0178 and IFT preprint number IFT-UAM/CSIC-16-089. Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher 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 Mitchell Institute for Fundamental Physics and Astronomy at Texas A&MUniversity, Financiadora de Estudos e Projetos, Fundaç ão Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovaç ão, the Deutsche Forschungsgemeinschaft, and the Collaborating Institutions in the Dark Energy Survey. The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgenössische Technische Hochschule (ETH) Zürich, Fermi National Accelerator Laboratory, 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 Universit ät München 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, TexasA&MUniversity, and the OzDES Membership Consortium. The DES data management system is supported by the National Science Foundation under grant number AST-1138766. The DES 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 and SEV-2012-0249. Research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) includingERCgrant agreements 240672, 291329, and 306478. Support for DG was provided by NASA through the Einstein Fellowship Program, grant PF5-160138.

Funders	Funder number
Centro de Excelencia Severo Ochoa	SEV-2012-0249, SEV-2012-0234
Collaborating Institutions are Argonne National Laboratory
Collaborating Institutions in the Dark Energy Survey
Institut de Ciències de l'Espai
Jülich Supercomputing Centre	IFT-UAM/CSIC-16-089
Mitchell Institute for Fundamental Physics and Astronomy at Texas A&MUniversity
Science and Technology Facilities Council of the United Kingdom
TexasA&MUniversity
National Science Foundation	FPA2013-47986, AYA2012-39559, AST-1138766, ESP2013-48274
U.S. Department of Energy
National Aeronautics and Space Administration	PF5-160138
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
University of Portsmouth
National Centre for Supercomputing Applications
Seventh Framework Programme	1138766, 240672, 306478, 660053, 291329
SLAC National Accelerator Laboratory
Higher Education Funding Council for England
University College London
European Research Council
University of Nottingham
University of Sussex
University of Edinburgh
Deutsche Forschungsgemeinschaft
Eidgenössische Technische Hochschule Zürich
Ministerio de Economía y Competitividad	FPA2012-39684
Ministério da Ciência, Tecnologia e Inovação
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
Seventh Framework Programme
Ludwig-Maximilians-Universität München
Ministry of Education and Science of Ukraine
Institut de Física d'Altes Energies

Keywords

Large-scale structure of Universe
Surveys
cosmic background radiation

Access to Document

10.1093/mnras/stw2968

Cite this

@article{cf8d72eae44947b6aeecfa5ed3e0125f,

title = "Imprint of DES superstructures on the cosmic microwave background",

abstract = "Small temperature anisotropies in the cosmic microwave background (CMB) can be sourced by density perturbations via the late-time integrated Sachs-Wolfe (ISW) effect. Large voids and superclusters are excellent environments to make a localized measurement of this tiny imprint. In some cases excess signals have been reported. We probed these claims with an independent data set, using the first year data of the Dark Energy Survey (DES) in a different footprint, and using a different superstructure finding strategy. We identified 52 large voids and 102 superclusters at redshifts 0.2 < z < 0.65. We used the Jubilee simulation to a priori evaluate the optimal ISW measurement configuration for our compensated top-hat filtering technique, and then performed a stacking measurement of the CMB temperature field based on the DES data. For optimal configurations, we detected a cumulative cold imprint of voids with ΔTf ≈ -5.0 ± 3.7 μK and a hot imprint of superclusters ΔTf ≈ 5.1 ± 3.2 μK; this is ~1.2σhigher than the expected |ΔTf| ≈ 0.6 μK imprint of such superstructures in λ cold dark matter (λCDM). If we instead use an a posteriori selected filter size (R/Rv = 0.6), we can find a temperature decrement as large as δTf ≈ -9.8 ± 4.7 μK for voids, which is ~2σ above λCDM expectations and is comparable to previous measurements made using Sloan Digital Sky Survey superstructure data.",

keywords = "Large-scale structure of Universe, Surveys, cosmic background radiation",

author = "{The DES Collaboration} and A. Kov{\'a}cs and C. S{\'a}nchez and J. Garc{\'i}a-Bellido and S. Nadathur and R. Crittenden and D. Gruen and D. Huterer and D. Bacon and J. Clampitt and J. DeRose and S. Dodelson and E. Gazta{\~n}aga and B. Jain and D. Kirk and O. Lahav and R. Miquel and K. Naidoo and Peacock, {J. A.} and B. Soergel and L. Whiteway and Abdalla, {F. B.} and S. Allam and J. Annis and A. Benoit-L{\'e}vy and E. Bertin and D. Brooks and E. Buckley-Geer and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and Cunha, {C. E.} and D'Andrea, {C. B.} and {da Costa}, {L. N.} and DePoy, {D. L.} and S. Desai and Eifler, {T. F.} and Finley, {D. A.} and B. Flaugher and P. Fosalba and J. Frieman and T. Giannantonio and Goldstein, {D. A.} and Gruendl, {R. A.} and G. Gutierrez and James, {D. J.} and K. Kuehn and N. Kuropatkin and Marshall, {J. L.} and P. Melchior and E. Suchyta",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors.",

year = "2017",

month = mar,

day = "11",

doi = "10.1093/mnras/stw2968",

language = "English",

volume = "465",

pages = "4166--4179",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

}

TY - JOUR

T1 - Imprint of DES superstructures on the cosmic microwave background

AU - The DES Collaboration

AU - Kovács, A.

AU - Sánchez, C.

AU - García-Bellido, J.

AU - Nadathur, S.

AU - Crittenden, R.

AU - Gruen, D.

AU - Huterer, D.

AU - Bacon, D.

AU - Clampitt, J.

AU - DeRose, J.

AU - Dodelson, S.

AU - Gaztañaga, E.

AU - Jain, B.

AU - Kirk, D.

AU - Lahav, O.

AU - Miquel, R.

AU - Naidoo, K.

AU - Peacock, J. A.

AU - Soergel, B.

AU - Whiteway, L.

AU - Abdalla, F. B.

AU - Allam, S.

AU - Annis, J.

AU - Benoit-Lévy, A.

AU - Bertin, E.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - da Costa, L. N.

AU - DePoy, D. L.

AU - Desai, S.

AU - Eifler, T. F.

AU - Finley, D. A.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Frieman, J.

AU - Giannantonio, T.

AU - Goldstein, D. A.

AU - Gruendl, R. A.

AU - Gutierrez, G.

AU - James, D. J.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Marshall, J. L.

AU - Melchior, P.

AU - Suchyta, E.

PY - 2017/3/11

Y1 - 2017/3/11

N2 - Small temperature anisotropies in the cosmic microwave background (CMB) can be sourced by density perturbations via the late-time integrated Sachs-Wolfe (ISW) effect. Large voids and superclusters are excellent environments to make a localized measurement of this tiny imprint. In some cases excess signals have been reported. We probed these claims with an independent data set, using the first year data of the Dark Energy Survey (DES) in a different footprint, and using a different superstructure finding strategy. We identified 52 large voids and 102 superclusters at redshifts 0.2 < z < 0.65. We used the Jubilee simulation to a priori evaluate the optimal ISW measurement configuration for our compensated top-hat filtering technique, and then performed a stacking measurement of the CMB temperature field based on the DES data. For optimal configurations, we detected a cumulative cold imprint of voids with ΔTf ≈ -5.0 ± 3.7 μK and a hot imprint of superclusters ΔTf ≈ 5.1 ± 3.2 μK; this is ~1.2σhigher than the expected |ΔTf| ≈ 0.6 μK imprint of such superstructures in λ cold dark matter (λCDM). If we instead use an a posteriori selected filter size (R/Rv = 0.6), we can find a temperature decrement as large as δTf ≈ -9.8 ± 4.7 μK for voids, which is ~2σ above λCDM expectations and is comparable to previous measurements made using Sloan Digital Sky Survey superstructure data.

AB - Small temperature anisotropies in the cosmic microwave background (CMB) can be sourced by density perturbations via the late-time integrated Sachs-Wolfe (ISW) effect. Large voids and superclusters are excellent environments to make a localized measurement of this tiny imprint. In some cases excess signals have been reported. We probed these claims with an independent data set, using the first year data of the Dark Energy Survey (DES) in a different footprint, and using a different superstructure finding strategy. We identified 52 large voids and 102 superclusters at redshifts 0.2 < z < 0.65. We used the Jubilee simulation to a priori evaluate the optimal ISW measurement configuration for our compensated top-hat filtering technique, and then performed a stacking measurement of the CMB temperature field based on the DES data. For optimal configurations, we detected a cumulative cold imprint of voids with ΔTf ≈ -5.0 ± 3.7 μK and a hot imprint of superclusters ΔTf ≈ 5.1 ± 3.2 μK; this is ~1.2σhigher than the expected |ΔTf| ≈ 0.6 μK imprint of such superstructures in λ cold dark matter (λCDM). If we instead use an a posteriori selected filter size (R/Rv = 0.6), we can find a temperature decrement as large as δTf ≈ -9.8 ± 4.7 μK for voids, which is ~2σ above λCDM expectations and is comparable to previous measurements made using Sloan Digital Sky Survey superstructure data.

KW - Large-scale structure of Universe

KW - Surveys

KW - cosmic background radiation

UR - http://www.scopus.com/inward/record.url?scp=85014854110&partnerID=8YFLogxK

U2 - 10.1093/mnras/stw2968

DO - 10.1093/mnras/stw2968

M3 - Article

AN - SCOPUS:85014854110

SN - 0035-8711

VL - 465

SP - 4166

EP - 4179

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Imprint of DES superstructures on the cosmic microwave background

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this