Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey. I. Evidence for Thermal Energy Anisotropy Using Oriented Stacking-Reference-Cited by-同舟云学术

Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey. I. Evidence for Thermal Energy Anisotropy Using Oriented Stacking

Published:2022-07-01 Issue:2 Volume:933 Page:134
ISSN:0004-637X
Container-title:The Astrophysical Journal
language:
Short-container-title:ApJ

Author:

Lokken M.^ORCID,Hložek R.^ORCID,Engelen A. van^ORCID,Madhavacheril M.^ORCID,Baxter E.^ORCID,DeRose J.^ORCID,Doux C.^ORCID,Pandey S.^ORCID,Rykoff E. S.^ORCID,Stein G.^ORCID,To C.^ORCID,Abbott T. M. C.,Adhikari S.^ORCID,Aguena M.^ORCID,Allam S.^ORCID,Andrade-Oliveira F.,Annis J.^ORCID,Battaglia N.^ORCID,Bernstein G. M.^ORCID,Bertin E.^ORCID,Bond J. R.^ORCID,Brooks D.^ORCID,Calabrese E.,Rosell A. Carnero^ORCID,Kind M. Carrasco^ORCID,Carretero J.^ORCID,Cawthon R.^ORCID,Choi A.^ORCID,Costanzi M.^ORCID,Crocce M.^ORCID,Costa L. N. da^ORCID,Pereira M. E. da Silva,Vicente J. De^ORCID,Desai S.^ORCID,Dietrich J. P.^ORCID,Doel P.,Dunkley J.^ORCID,Everett S.,Evrard A. E.^ORCID,Ferraro S.^ORCID,Flaugher B.^ORCID,Fosalba P.^ORCID,Frieman J.^ORCID,Gallardo P. A.^ORCID,García-Bellido J.^ORCID,Gaztanaga E.^ORCID,Gerdes D. W.^ORCID,Giannantonio T.^ORCID,Gruen D.^ORCID,Gruendl R. A.^ORCID,Gschwend J.^ORCID,Gutierrez G.^ORCID,Hill J. C.^ORCID,Hilton M.^ORCID,Hincks A. D.^ORCID,Hinton S. R.^ORCID,Hollowood D. L.^ORCID,Honscheid K.^ORCID,Hoyle B.^ORCID,Huang Z.^ORCID,Hughes J. P.^ORCID,Huterer D.^ORCID,Jain B.,James D. J.^ORCID,Jeltema T.^ORCID,Kuehn K.^ORCID,Lima M.,Maia M. A. G.^ORCID,Marshall J. L.^ORCID,McMahon J.,Melchior P.^ORCID,Menanteau F.^ORCID,Miquel R.^ORCID,Mohr J. J.,Moodley K.^ORCID,Morgan R.^ORCID,Nati F.^ORCID,Page L.^ORCID,Ogando R. L. C.^ORCID,Palmese A.^ORCID,Paz-Chinchón F.^ORCID,Malagón A. A. Plazas^ORCID,Pieres A.^ORCID,Romer A. K.^ORCID,Rozo E.^ORCID,Sanchez E.^ORCID,Scarpine V.,Schillaci A.,Schubnell M.^ORCID,Serrano S.^ORCID,Sevilla-Noarbe I.^ORCID,Sheldon E.^ORCID,Shin T.,Sifón C.^ORCID,Smith M.^ORCID,Soares-Santos M.^ORCID,Suchyta E.^ORCID,Swanson M. E. C.^ORCID,Tarle G.^ORCID,Thomas D.^ORCID,Tucker D. L.^ORCID,Varga T. N.,Weller J.^ORCID,Wechsler R. H.^ORCID,Wilkinson R. D.,Wollack E. J.^ORCID,Xu Z.^ORCID

Abstract

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 thermal Sunyaev–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). Cutout 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 of microwave and optical surveys.

Funder

National Science Foundation

National Aeronautics and Space Administration

EC ∣ European Research Council

Publisher

American Astronomical Society

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://iopscience.iop.org/article/10.3847/1538-4357/ac7043/pdf

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1. Dark Energy Survey Year 1 Results: Cosmological constraints from cluster abundances and weak lensing