Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Correlations.
作者信息
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
机构信息
Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA.
Kavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, California 94305, USA.
出版信息
Phys Rev Lett. 2021 Apr 9;126(14):141301. doi: 10.1103/PhysRevLett.126.141301.
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_{-0.038}^{+0.055} and σ_{8}=0.783_{-0.054}^{+0.064}. 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.
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