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Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey: I. evidence for thermal energy Anisotropy using oriented stacking

Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey: I. evidence for thermal energy Anisotropy using oriented stacking
Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey: I. evidence for thermal energy Anisotropy using oriented stacking
The cosmic web contains filamentary structure on a wide range of scales. On the largest scales, superclustering aligns multiple galaxy clusters along intercluster bridges, visible through their thermalSunyaev-Zel'dovich signal in the cosmic microwave background. We demonstrate a new, flexible method to analyze the hot gas signal from multiscale extended structures. We use a Compton y-map from the Atacama Cosmology Telescope (ACT) stacked on redMaPPer cluster positions from the optical Dark Energy Survey (DES). Cut out images from the y-map are oriented with large-scale structure information from DES galaxy data such that the superclustering signal is aligned before being overlaid. We find evidence of an extended quadrupole moment of the stacked y signal at the 3.5σ level, demonstrating that the large-scale thermal energy surrounding galaxy clusters is anisotropically distributed. We compare our ACT × DES results with the Buzzard simulations, finding broad agreement. Using simulations, we highlight the promise of this novel technique for constraining the evolution of anisotropic, non-Gaussian structure using future combinations ofmicrowave and optical surveys.
1654, 1657, 330, 343, 584, 811, 902, Cosmic web, Cosmology, Galaxy clusters, Intergalactic filaments, Large-scale structure of the universe, Sunyaev-Zeldovich effect, Superclusters
0004-637X
Lokken, M.
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Hložek, R.
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Engelen, A. van
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Madhavacheril, M.
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et al.
Lokken, M.
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Hložek, R.
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Baxter, E.
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Doel, P.
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Dunkley, J.
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Everett, S.
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Frieman, J.
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Smith, M.
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Lokken, M., Hložek, R., Engelen, A. van and Smith, M. , et al. (2022) Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey: I. evidence for thermal energy Anisotropy using oriented stacking. The Astrophysical Journal, 933 (2), [134]. (doi:10.3847/1538-4357/ac7043). (In Press)

Record type: Article

Abstract

The cosmic web contains filamentary structure on a wide range of scales. On the largest scales, superclustering aligns multiple galaxy clusters along intercluster bridges, visible through their thermalSunyaev-Zel'dovich signal in the cosmic microwave background. We demonstrate a new, flexible method to analyze the hot gas signal from multiscale extended structures. We use a Compton y-map from the Atacama Cosmology Telescope (ACT) stacked on redMaPPer cluster positions from the optical Dark Energy Survey (DES). Cut out images from the y-map are oriented with large-scale structure information from DES galaxy data such that the superclustering signal is aligned before being overlaid. We find evidence of an extended quadrupole moment of the stacked y signal at the 3.5σ level, demonstrating that the large-scale thermal energy surrounding galaxy clusters is anisotropically distributed. We compare our ACT × DES results with the Buzzard simulations, finding broad agreement. Using simulations, we highlight the promise of this novel technique for constraining the evolution of anisotropic, non-Gaussian structure using future combinations ofmicrowave and optical surveys.

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Accepted/In Press date: 10 July 2022
Additional Information: Funding Information: K.M. acknowledges support from the National Research Foundation of South Africa. A.D.H. acknowledges support from the Sutton Family Chair in Science, Christianity and Cultures. Funding Information: Based in part on observations at Cerro Tololo Inter-American Observatory at NSF’s NOIRLab (NOIRLab Prop. ID 2012B-0001; PI: J. Frieman), which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. Funding Information: The DES data management system is supported by the National Science Foundation under grant Nos. AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MICINN under grant Nos. ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP7/2007-2013), including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) do e-Universo (CNPq grant 465376/2014-2). We thank the anonymous referee for providing valuable comments which improved the quality of the manuscript. Funding Information: This work was supported by the U.S. National Science Foundation through awards AST-0408698, AST-0965625, and AST-1440226 for the ACT project, as well as awards PHY-0355328, PHY-0855887, and PHY-1214379. Funding was also provided by Princeton University, the University of Pennsylvania, and a Canada Foundation for Innovation (CFI) award to UBC. ACT operates in the Parque Astronómico Atacama in northern Chile under the auspices of the Comisión Nacional de Investigación (CONICYT). The development of multichroic detectors and lenses was supported by NASA grants NNX13AE56G and NNX14AB58G. Detector research at NIST was supported by the NIST Innovations in Measurement Science program. Funding Information: 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 National Center 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&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 Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey. Funding Information: M.L. acknowledges the support of the National Sciences and Engineering Research Council of Canada (NSERC) [PGSD - 559296 - 2021] and the Queen Elizabeth II / Graduate Scholarships in Science and Technology (QEII-GSST). Funding Information: J.R.B. was funded by the Natural Sciences and Engineering Research Council of Canada Discovery Grant Program and a fellowship from the Canadian Institute for Advanced Research (CIFAR) Gravity and Extreme Universe program. Funding Information: Canadian co-authors acknowledge support from the Natural Sciences and Engineering Research Council of Canada. Computations were performed in part on the Niagara supercomputer at the SciNet HPC Consortium. SciNet is funded by the Canada Foundation for Innovation; the Government of Ontario; Ontario Research Fund—Research Excellence; and the University of Toronto. Funding Information: R.H. is a CIFAR Azrieli Global Scholar, Gravity and the Extreme Universe Program, 2019, and a 2020 Alfred P. Sloan Research Fellow. R.H. is supported by the Natural Sciences and Engineering Research Council of Canada Discovery Grant Program and the Connaught Fund. The Dunlap Institute is funded through an endowment established by the David Dunlap family and the University of Toronto. Funding Information: This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. Funding Information: J.P.H. acknowledges funding for SZ cluster studies from NSF AAG No. AST-1615657. Publisher Copyright: © 2022. The Author(s). Published by the American Astronomical Society.
Keywords: 1654, 1657, 330, 343, 584, 811, 902, Cosmic web, Cosmology, Galaxy clusters, Intergalactic filaments, Large-scale structure of the universe, Sunyaev-Zeldovich effect, Superclusters

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Local EPrints ID: 475552
URI: http://eprints.soton.ac.uk/id/eprint/475552
ISSN: 0004-637X
PURE UUID: 044b17eb-dd79-4b20-995b-53eca3f7a830
ORCID for M. Smith: ORCID iD orcid.org/0000-0002-3321-1432

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Date deposited: 21 Mar 2023 17:42
Last modified: 17 Mar 2024 03:36

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Contributors

Author: M. Lokken
Author: R. Hložek
Author: A. van Engelen
Author: M. Madhavacheril
Author: E. Baxter
Author: J. DeRose
Author: C. Doux
Author: S. Pandey
Author: E. S. Rykoff
Author: G. Stein
Author: C. To
Author: T. M. C. Abbott
Author: S. Adhikari
Author: M. Aguena
Author: S. Allam
Author: F. Andrade-Oliveira
Author: J. Annis
Author: N. Battaglia
Author: G. M. Bernstein
Author: E. Bertin
Author: J. R. Bond
Author: D. Brooks
Author: E. Calabrese
Author: A. Carnero Rosell
Author: M. Carrasco Kind
Author: J. Carretero
Author: R. Cawthon
Author: A. Choi
Author: M. Costanzi
Author: M. Crocce
Author: L. N. da Costa
Author: M. E. da Silva Pereira
Author: J. De Vicente
Author: S. Desai
Author: J. P. Dietrich
Author: P. Doel
Author: J. Dunkley
Author: S. Everett
Author: A. E. Evrard
Author: S. Ferraro
Author: B. Flaugher
Author: P. Fosalba
Author: J. Frieman
Author: P. A. Gallardo
Author: J. García-Bellido
Author: E. Gaztanaga
Author: D. W. Gerdes
Author: T. Giannantonio
Author: D. Gruen
Author: M. Smith ORCID iD
Corporate Author: et al.

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