Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Correlations

Journal Article · Tue Apr 06 00:00:00 EDT 2021 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.126.141301· OSTI ID:1807206

To, C. ; Krause, E.; Rozo, E.; Wu, H.; Gruen, D.; Wechsler, R.  H.; Eifler, T.  F.; Rykoff, E.  S.; Costanzi, M.; Becker, M.  R.; Bernstein, G.  M.; Blazek, J.; Bocquet, S.; Bridle, S.  L.; Cawthon, R.; Choi, A.; Crocce, M.; Davis, C.; DeRose, J.; Drlica-Wagner, A. ; Elvin-Poole, J.; Fang, X.; Farahi, A.; Friedrich, O.; Gatti, M.; Gaztanaga, E.; Giannantonio, T.; Hartley, W.  G.; Hoyle, B.; Jarvis, M.; MacCrann, N.; McClintock, T.; Miranda, V.; Pereira, M.  E. S.; Park, Y.; Porredon, A.; Prat, J.; Rau, M.  M.; Ross, A.  J.; Samuroff, S.; Sánchez, C.; Sevilla-Noarbe, I.; Sheldon, E.; Troxel, M.  A.; Varga, T.  N.; Vielzeuf, P.; Zhang, Y.; Zuntz, J.; Abbott, T.  M. C.; Aguena, M.; Amon, A.; Annis, J.; Avila, S.; Bertin, E.; Bhargava, S.; Brooks, D.; Burke, D.  L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Chang, C.; Conselice, C.; da Costa, L.  N.; Davis, T.  M.; Desai, S.; Diehl, H.  T.; Dietrich, J.  P.; Everett, S.; Evrard, A.  E.; Ferrero, I.; Flaugher, B.; Fosalba, P.; Frieman, J.; García-Bellido, J.; Gruendl, R.  A.; Gutierrez, G.; Hinton, S.  R.; Hollowood, D.  L.; Honscheid, K.; Huterer, D.; James, D.  J.; Jeltema, T.; Kron, R.; Kuehn, K.; Kuropatkin, N.; Lima, M.; Maia, M.  A. G.; Marshall, J.  L.; Menanteau, F.; Miquel, R.; Morgan, R.; Muir, J.; Myles, J.; Palmese, A.; Paz-Chinchón, F.; Plazas, A.  A.; Romer, A.  K.; Roodman, A.; Sanchez, E.; Santiago, B.; Scarpine, V.; Serrano, S.; Smith, M.; Suchyta, E.; Swanson, M.  E. C.; Tarle, G.; Thomas, D.; Tucker, D.  L.; Weller, J.; Wester, W.; Wilkinson, R.  D.

We present the first joint analysis of cluster abundances and auto or cross-correlations of three cosmic tracer fields: galaxy density, weak gravitational lensing shear, and cluster density split by optical richness. From a joint analysis (4×2pt+N) of cluster abundances, three cluster cross-correlations, and the auto correlations of the galaxy density measured from the first year data of the Dark Energy Survey, we obtain Ω_m=$$0.305^{+0.055}_{-0.038}$$ and σ₈=$$0.783^{+0.064}_{-0.054}$$. This result is consistent with constraints from the DES-Y1 galaxy clustering and weak lensing two-point correlation functions for the flat νΛCDM model. Consequently, we combine cluster abundances and all two-point correlations from across all three cosmic tracer fields (6×2pt+N) and find improved constraints on cosmological parameters as well as on the cluster observable-mass scaling relation. This analysis is an important advance in both optical cluster cosmology and multiprobe analyses of upcoming wide imaging surveys.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); National Science Foundation (NSF)
• Contributing Organization: DES Collaboration
• Grant/Contract Number: AC05-00OR22725; AC02-06CH11357; SC0020247; AC02-76SF00515; SC0009913; SC0015975; 465376/2014-2; SEV-2016-0588; SEV-2016-0597; MDM-2015-0509; PGC2018-094773; PGC2018-102021; ESP2017-89838; AST-1536171; AST-1138766; AST-1516997; 291329; 240672; 306478; AC02-07CH11359; SC0019193
• OSTI ID: 1807206
• Alternate ID(s): OSTI ID: 1810564; OSTI ID: 1839686; OSTI ID: 1872399
• Journal Information: Physical Review Letters, Vol. 126, Issue 14; ISSN 0031-9007
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
Cosmological parameters
Cosmology
Dark energy
Dark matter
Galaxy cluster count
Large-scale structure of the universe