Dark Energy Survey Year 3 results: Imprints of cosmic voids and superclusters in the Planck CMB lensing map

Journal Article · Mon Jul 25 00:00:00 EDT 2022 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/stac2011· OSTI ID:1880713

Kovács, A. ; Vielzeuf, P.; Ferrero, I. ; Fosalba, P. ; Demirbozan, U.; Miquel, R.; Chang, C.; Hamaus, N.; Pollina, G.; Bechtol, K.; Becker, M.; Carnero Rosell, A.; Carrasco Kind, M.; Cawthon, R.; Crocce, M.; Drlica-Wagner, A.; Elvin-Poole, J.; Gatti, M.; Giannini, G.; Gruendl, R. A. ; Porredon, A.; Ross, A. J.; Rykoff, E. S.; Sevilla-Noarbe, I.; Sheldon, E.; Yanny, B.; Abbott, T.; Aguena, M.; Allam, S.; Annis, J.; Bacon, D.; Bernstein, G.; Bertin, E.; Bocquet, S.; Brooks, D.; Burke, D.; Carretero, J.; Castander, F. J.; Costanzi, M.; da Costa, L. N.; Pereira, M. E. S.; De Vicente, J.; Desai, S.; Diehl, H. T.; Dietrich, J.; Ferté, A.; Flaugher, B.; Frieman, J.; Garcia-Bellido, J.; Gaztañaga, E.; Gerdes, D.; Giannantonio, T.; Gruen, D.; Gschwend, J.; Gutierrez, G.; Hinton, S.; Hollowood, D. L.; Honscheid, K.; Huterer, D.; Kuehn, K.; Lahav, O.; Lima, M.; March, M.; Marshall, J.; Melchior, P.; Menanteau, F.; Morgan, R.; Muir, J.; Ogando, R.; Palmese, A.; Paz-Chinchon, F.; Pieres, A.; Plazas Malagón, A.; Rodriguez Monroy, M.; Roodman, A.; Sanchez, E.; Schubnell, M.; Serrano, S.; Smith, M.; Suchyta, E.; Tarle, G.; Thomas, D.; To, C-H; Varga, T. N.; Weller (The DES Collaboration), J.

The CMB lensing signal from cosmic voids and superclusters probes the growth of structure in the low-redshift cosmic web. In this analysis, we cross-correlated the Planck CMB lensing map with voids detected in the Dark Energy Survey Year 3 (Y3) data set (~5000 deg²), expanding on previous measurements that used Y1 catalogues (~1300 deg²). Given the increased statistical power compared to Y1 data, we report a 6.6σ detection of negative CMB convergence (κ) imprints using approximately 3600 voids detected from a redMaGiC luminous red galaxy sample. However, the measured signal is lower than expected from the MICE N-body simulation that is based on the ΛCDM model (parameters Ω_m = 0.25, σ₈ = 0.8), and the discrepancy is associated mostly with the void centre region. Considering the full void lensing profile, we fit an amplitude $$A_{\kappa }=\kappa _{{\rm_{DES}}}/\kappa _{{\rm_{MICE}}}$$ to a simulation-based template with fixed shape and found a moderate 2σ deviation in the signal with A_κ ≈ 0.79 ± 0.12. Further, we also examined the WebSky simulation that is based on a Planck 2018 ΛCDM cosmology, but the results were even less consistent given the slightly higher matter density fluctuations than in MICE. We then identified superclusters in the DES and the MICE catalogues, and detected their imprints at the 8.4σ level; again with a lower-than-expected A_κ = 0.84 ± 0.10 amplitude. The combination of voids and superclusters yields a 10.3σ detection with an A_κ = 0.82 ± 0.08 constraint on the CMB lensing amplitude, thus the overall signal is 2.3σ weaker than expected from MICE.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Science and Technology Facilities Council (STFC) (United Kingdom); Spanish Ministry of Science and Innovation (MICINN); Brazilian Ministry of Science, Technology and Innovation (MCTI) - Financiadora de Estudos e Projetos (FINEP); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq); German Research Foundation (DFG)
• Contributing Organization: DES Collaboration
• Grant/Contract Number: SEV-2015-0548; AYA2017-89891-P; AC02-06CH11357; AC02-07CH11359; IJC2018-037730-I; AST-1138766; AST-1536171; ESP2017- 89838; PGC2018-094773; PGC2018-102021; SEV-2016-0588; SEV-2016-0597; MDM-2015-0509; 240672; 291329; 306478; FP7/2007-2013; 465376/2014-2; AC05-00OR22725; SC0019193
• OSTI ID: 1880713
• Alternate ID(s): OSTI ID: 1867673; OSTI ID: 1882940; OSTI ID: 1891399; OSTI ID: 1974887
• Report Number(s): FERMILAB-PUB-22-292-PPD-SCD; arXiv:2203.11306
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Vol. 515 Journal Issue: 3; ISSN 0035-8711
• Publisher: Oxford University Press
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
cosmic microwave background
gravitational lensing