Joint analysis of Dark Energy Survey Year 3 data and CMB lensing from SPT and Planck. III. Combined cosmological constraints

Journal Article · 31 January 2023 · Physical Review. D.

DOI: https://doi.org/10.1103/physrevd.107.023531 · OSTI ID:1877616

Abbott, T.  M. C. ^[1]; Aguena, M.; Alarcon, A.; Alves, O.; Amon, A.; Andrade-Oliveira, F.; Annis, J.; Ansarinejad, B.; Avila, S.; Bacon, D.; Baxter, E.  J.; Bechtol, K.; Becker, M.  R.; Benson, B.  A.; Bernstein, G.  M.; Bertin, E.; Blazek, J.; Bleem, L.  E.; Bocquet, S.; Brooks, D. ; Buckley-Geer, E.; Burke, D.  L.; Camacho, H.; Campos, A.; Carlstrom, J.  E.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Cawthon, R.; Chang, C.; Chang, C.  L.; Chen, R.; Choi, A.; Chown, R.; Conselice, C.; Cordero, J.; Costanzi, M.; Crawford, T.; Crites, A.  T.; Crocce, M.; da Costa, L.  N.; Davis, C.; Davis, T.  M.; de Haan, T.; De Vicente, J.; DeRose, J.; Desai, S.; Diehl, H.  T.; Dobbs, M.  A.; Dodelson, S.; Doel, P.; Doux, C.; Drlica-Wagner, A.; Eckert, K.; Eifler, T.  F.; Elsner, F.; Elvin-Poole, J.; Everett, S.; Everett, W.; Fang, X.; Ferrero, I.; Ferté, A.; Flaugher, B.; Fosalba, P.; Friedrich, O.; Frieman, J.; García-Bellido, J.; Gatti, M.; George, E.  M.; Giannantonio, T.; Giannini, G.; Gruen, D.; Gruendl, R.  A.; Gschwend, J.; Gutierrez, G.; Halverson, N.  W.; Harrison, I.; Herner, K.; Hinton, S.  R.; Holder, G.  P.; Hollowood, D.  L.; Holzapfel, W.  L.; Honscheid, K.; Hrubes, J.  D.; Huang, H.; Huff, E.  M.; Huterer, D.; Jain, B.; James, D.  J.; Jarvis, M.; Jeltema, T.; Kent, S.; Knox, L.; Kovacs, A.; Krause, E.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Lee, A.  T.; Leget, P. -F.; Lemos, P.; Liddle, A.  R.; Lidman, C.; Luong-Van, D.; McMahon, J.  J.; MacCrann, N.; March, M.; Marshall, J.  L.; Martini, P.; McCullough, J.; Melchior, P.; Menanteau, F.; Meyer, S.  S.; Miquel, R.; Mocanu, L.; Mohr, J.  J.; Morgan, R.; Muir, J.; Myles, J.; Natoli, T.; Navarro-Alsina, A.; Nichol, R.  C.; Omori, Y.; Padin, S.; Pandey, S.; Park, Y.; Paz-Chinchón, F.; Pereira, M.  E. S.; Pieres, A.; Plazas Malagón, A.  A.; Porredon, A.; Prat, J.; Pryke, C.; Raveri, M.; Reichardt, C.  L.; Rollins, R.  P.; Romer, A.  K.; Roodman, A.; Rosenfeld, R.; Ross, A.  J.; Ruhl, J.  E.; Rykoff, E.  S.; Sánchez, C.; Sanchez, E.; Sanchez, J.; Schaffer, K.  K.; Secco, L.  F.; Sevilla-Noarbe, I.; Sheldon, E.; Shin, T.; Shirokoff, E.; Smith, M.; Staniszewski, Z.; Stark, A.  A.; Suchyta, E.; Swanson, M.  E. C.; Tarle, G.; To, C.; Troxel, M.  A.; Tutusaus, I.; Varga, T.  N.; Vieira, J.  D.; Weaverdyck, N.; Wechsler, R.  H.; Weller, J.; Williamson, R.; Wu, W.  L. K.; Yanny, B.; Yin, B.; Zhang, Y.; Zuntz, J.

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1. National Optical-Infrared Astronomy Research Laboratory, La Serena (Chile). DES Collaboration. et al; SPT Collaboration. Et al.

Here, we present cosmological constraints from the analysis of two-point correlation functions between galaxy positions and galaxy lensing measured in Dark Energy Survey (DES) Year 3 data and measurements of cosmic microwave background (CMB) lensing from the South Pole Telescope (SPT) and Planck. When jointly analyzing the DES-only two-point functions and the DES cross-correlations with SPT+Planck CMB lensing, we find Ω_m = 0.344 ± 0.030 and S₈ ≡ σ₈ (Ω_m/0.3)^0.5 = 0.773 ± 0.016, assuming ΛCDM. When additionally combining with measurements of the CMB lensing autospectrum, we find Ω_m = 0.306$$^{+0.018}_{-0.021}$$ and S₈ = 0.792 ± 0.012. The high signal-to-noise of the CMB lensing cross-correlations enables several powerful consistency tests of these results, including comparisons with constraints derived from cross-correlations only, and comparisons designed to test the robustness of the galaxy lensing and clustering measurements from DES. Applying these tests to our measurements, we find no evidence of significant biases in the baseline cosmological constraints from the DES-only analyses or from the joint analyses with CMB lensing cross-correlations. However, the CMB lensing cross-correlations suggest possible problems with the correlation function measurements using alternative lens galaxy samples, in particular the redMaGiC galaxies and high-redshift MagLim galaxies, consistent with the findings of previous studies. We use the CMB lensing cross-correlations to identify directions for further investigating these problems.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: DES Collaboration; SPT Collaboration
• Grant/Contract Number: AC02-07CH11359; SC0012704; AC02-06CH11357; AC05-00OR22725; SC0019193
• OSTI ID: 1877616
• Alternate ID(s): OSTI ID: 1922857; OSTI ID: 1996666; OSTI ID: 2350560
• Report Number(s): FERMILAB-PUB-22-475-PPD; arXiv:2206.10824; oai:inspirehep.net:2099589
• Journal Information: Physical Review. D., Vol. 107, Issue 2; ISSN 2470-0010
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English