| Title: |
Multiprobe cosmology from the abundance of SPT clusters and des galaxy clustering and weak lensing |
| Authors: |
Bocquet, S; Grandis, S; Krause, E; To, C; Bleem, LE; Klein, M; Mohr, JJ; Schrabback, T; Alarcon, A; Alves, O; Amon, A; Andrade-Oliveira, F; Baxter, EJ; Bechtol, K; Becker, MR; Bernstein, GM; Blazek, J; Camacho, H; Campos, A; Carnero Rosell, A; Carrasco Kind, M; Cawthon, R; Chang, C; Chen, R; Choi, A; Cordero, J; Crocce, M; Davis, C; Derose, J; Diehl, HT; Dodelson, S; Doux, C; Drlica-Wagner, A; Eckert, K; Eifler, TF; Elsner, F; Elvin-Poole, J; Everett, S; Fang, X; Ferté, A; Fosalba, P; Friedrich, O; Frieman, J; Gatti, M; Giannini, G; Gruen, D; Gruendl, RA; Harrison, I; Hartley, WG; Herner, K; Huang, H; Huff, EM; Huterer, D; Jarvis, M; Kuropatkin, N; Leget, PF; Lemos, P; Liddle, AR; Maccrann, N; McCullough, J; Muir, J; Myles, J; Navarro-Alsina, A; Pandey, S; Park, Y; Porredon, A; Prat, J; Raveri, M; Rollins, RP; Roodman, A; Rosenfeld, R; Rykoff, ES; Sánchez, C; Sanchez, J; Secco, LF; Sevilla-Noarbe, I; Sheldon, E; Shin, T; Troxel, MA; Tutusaus, I; Varga, TN; Weaverdyck, N; Wechsler, RH; Wu, HY; Yanny, B; Yin, B; Zhang, Y; Zuntz, J; Abbott, TMC; Ade, PAR; Aguena, M; Allam, S; Allen, SW; Anderson, AJ; Ansarinejad, B; Austermann, JE; Bayliss, M; Beall, JA; Bender, AN; Benson, BA |
| Publisher Information: |
American Physical Society |
| Publication Year: |
2025 |
| Collection: |
The University of Melbourne: Digital Repository |
| Description: |
Cosmic shear, galaxy clustering, and the abundance of massive halos each probe the large-scale structure of the Universe in complementary ways. We present cosmological constraints from the joint analysis of the three probes, building on the latest analyses of the lensing-informed abundance of clusters identified by the South Pole Telescope (SPT) and of the auto- and cross-correlation of galaxy position and weak lensing measurements (3 ×2pt) in the Dark Energy Survey (DES). We consider the cosmological correlation between the different tracers and we account for the systematic uncertainties that are shared between the large-scale lensing correlation functions and the small-scale lensing-based cluster mass calibration. Marginalized over the remaining Λ cold dark matter (ΛCDM) parameters (including the sum of neutrino masses) and 52 astrophysical modeling parameters, we measure Ωm =0.300 ±0.017 and 𝜎8 =0.797 ±0.026. Compared to constraints from Planck primary cosmic microwave background (CMB) anisotropies, our constraints are only 15% wider with a probability to exceed of 0.22 (1.2𝜎) for the two-parameter difference. We further obtain 𝑆8 ≡𝜎8(Ωm/0.3)0.5 =0.796 ±0.013 which is lower than the Planck measurement at the 1.6𝜎 level. The combined SPT cluster, DES 3 ×2pt, and Planck datasets mildly prefer a nonzero positive neutrino mass, with a 95% upper limit ∑𝑚𝜈 |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| ISSN: |
2470-0010 |
| Relation: |
https://hdl.handle.net/11343/357174 |
| Availability: |
https://hdl.handle.net/11343/357174 |
| Rights: |
https://creativecommons.org/licenses/by/4.0 ; CC BY |
| Accession Number: |
edsbas.B9E55BCC |
| Database: |
BASE |