SPT Clusters with DES and HST Weak Lensing. II. Cosmological Constraints from the Abundance of Massive Halos

• Main Authors: Bocquet, S, Grandis, S, Bleem, L.E, Klein, M, Mohr, J.J, Schrabback, T, Abbott, T.M.C, Ade, P.A.R, Aguena, M, Alarcon, A, Allam, S, Allen, S.W, Alves, O, Amon, A, Anderson, A.J, Annis, J, Ansarinejad, B, Austermann, J.E, Avila, S, Bacon, D, Bayliss, M, Beall, J.A, Bechtol, K, Becker, M.R, Bender, A.N, Benson, B.A, Bernstein, G.M, Bhargava, S, Bianchini, F, Brodwin, M, Brooks, D, Bryant, L, Campos, A, Canning, R.E.A, Carlstrom, J.E, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Castander, F.J, Cawthon, R, Chang, C.L, Chang, C, Chaubal, P, Chen, R, Chiang, H.C, Choi, A, Chou, T-L, Citron, R, Moran, C. Corbett, Cordero, J, Costanzi, M, Crawford, T.M, Crites, A.T, da Costa, L.N, Pereira, M.E.S, Davis, C, Davis, T.M, Derose, J, Desai, S, de Haan, T, Diehl, H.T, Dobbs, M.A, Dodelson, S, Doux, C, Drlica-Wagner, A, Eckert, K, Elvin-Poole, J, Everett, S, Everett, W, Ferrero, I, Ferté, A, Flores, A.M, Frieman, J, Gallicchio, J, García-Bellido, J, Gatti, M, George, E.M, Giannini, G, Gladders, M.D, Gruen, D, Gruendl, R.A, Gupta, N, Gutierrez, G, Halverson, N.W, Harrison, I, Hartley, W.G, Herner, K, Hinton, S.R, Holder, G.P, Hollowood, D.L, Holzapfel, W.L, Honscheid, K, Hrubes, J.D, Huang, N, Hubmayr, J, Huff, E.M, Huterer, D, Irwin, K.D, James, D.J, Jarvis, M, Khullar, G, Kim, K, Knox, L, Kraft, R, Krause, E, Kuehn, K, Kuropatkin, N, Kéruzoré, F, Lahav, O, Lee, A.T, Leget, P.-F, Li, D, Lin, H, Lowitz, A, Maccrann, N, Mahler, G, Mantz, A, Marshall, J.L, Mccullough, J, Mcdonald, M, Mcmahon, J.J, Mena-Fernández, J, Menanteau, F, Meyer, S.S, Miquel, R, Montgomery, J, Myles, J, Natoli, T, Navarro-Alsina, A, Nibarger, J.P, Noble, G.I, Novosad, V, Ogando, R.L.C, Omori, Y, Padin, S, Pandey, S, Paschos, P, Patil, S, Pieres, A, Plazas Malagón, A.A, Porredon, A, Prat, J, Pryke, C, Raveri, M, Reichardt, C.L, Roberson, J, Rollins, R.P, Romero, C, Roodman, A, Ruhl, J.E, Rykoff, E.S, Saliwanchik, B.R, Salvati, L, Sánchez, C, Sanchez, E, Sanchez Cid, D, Saro, A, Schaffer, K.K, Secco, L.F, Sevilla-Noarbe, I, Sharon, K, Sheldon, E, Shin, T, Sievers, C, Smecher, G, Smith, M, Somboonpanyakul, T, Sommer, M, Stalder, B, Stark, A.A, Stephen, J, Strazzullo, V, Suchyta, E, Tarle, G, To, C, Troxel, M.A, Tucker, C, Tutusaus, I, Varga, T.N, Veach, T, Vieira, J.D, Vikhlinin, A, von der Linden, A, Wang, G, Weaverdyck, N, Weller, J, Whitehorn, N, Wu, W.L.K, Yanny, B, Yefremenko, V, Yin, B, Young, M, Zebrowski, J.A, Zhang, Y, Zohren, H, Zuntz, J
• Other Authors: Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS), DES, SPT
• Format: Report
• Language: English
• Published: HAL CCSD 2024
• Subjects: [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]; South pole
• Online Access: https://hal.science/hal-04382031

International audience We present cosmological constraints from the abundance of galaxy clusters selected via the thermal Sunyaev-Zel'dovich (SZ) effect in South Pole Telescope (SPT) data with a simultaneous mass calibration using weak gravitational lensing data from the Dark Energy Survey (DES) and the Hubble Space Telescope (HST). The cluster sample is constructed from the combined SPT-SZ, SPTpol ECS, and SPTpol 500d surveys, and comprises 1,005 confirmed clusters in the redshift range $0.25-1.78$ over a total sky area of 5,200 deg$^2$. We use DES Year 3 weak-lensing data for 688 clusters with redshifts $z<0.95$ and HST weak-lensing data for 39 clusters with $0.6<z<1.7$. The weak-lensing measurements enable robust mass measurements of sample clusters and allow us to empirically constrain the SZ observable--mass relation. For a flat $\Lambda$CDM cosmology, and marginalizing over the sum of massive neutrinos, we measure $\Omega_\mathrm{m}=0.286\pm0.032$, $\sigma_8=0.817\pm0.026$, and the parameter combination $\sigma_8\,(\Omega_\mathrm{m}/0.3)^{0.25}=0.805\pm0.016$. Our measurement of $S_8\equiv\sigma_8\,\sqrt{\Omega_\mathrm{m}/0.3}=0.795\pm0.029$ and the constraint from Planck CMB anisotropies (2018 TT,TE,EE+lowE) differ by $1.1\sigma$. In combination with that Planck dataset, we place a 95% upper limit on the sum of neutrino masses $\sum m_\nu<0.18$ eV. When additionally allowing the dark energy equation of state parameter $w$ to vary, we obtain $w=-1.45\pm0.31$ from our cluster-based analysis. In combination with Planck data, we measure $w=-1.34^{+0.22}_{-0.15}$, or a $2.2\sigma$ difference with a cosmological constant. We use the cluster abundance to measure $\sigma_8$ in five redshift bins between 0.25 and 1.8, and we find the results to be consistent with structure growth as predicted by the $\Lambda$CDM model fit to Planck primary CMB data.