Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Correlations. Academic Article uri icon

abstract

  • 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.

published proceedings

  • Phys Rev Lett

altmetric score

  • 133.122

author list (cited authors)

  • To, C., Krause, E., Rozo, E., Wu, H., Gruen, D., Wechsler, R. H., ... DES Collaboration.

citation count

  • 20

complete list of authors

  • To, C||Krause, E||Rozo, E||Wu, H||Gruen, D||Wechsler, RH||Eifler, TF||Rykoff, ES||Costanzi, M||Becker, MR||Bernstein, GM||Blazek, J||Bocquet, S||Bridle, SL||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, WG||Hoyle, B||Jarvis, M||MacCrann, N||McClintock, T||Miranda, V||Pereira, MES||Park, Y||Porredon, A||Prat, J||Rau, MM||Ross, AJ||Samuroff, S||Sánchez, C||Sevilla-Noarbe, I||Sheldon, E||Troxel, MA||Varga, TN||Vielzeuf, P||Zhang, Y||Zuntz, J||Abbott, TMC||Aguena, M||Amon, A||Annis, J||Avila, S||Bertin, E||Bhargava, S||Brooks, D||Burke, DL||Carnero Rosell, A||Carrasco Kind, M||Carretero, J||Chang, C||Conselice, C||da Costa, LN||Davis, TM||Desai, S||Diehl, HT||Dietrich, JP||Everett, S||Evrard, AE||Ferrero, I||Flaugher, B||Fosalba, P||Frieman, J||García-Bellido, J||Gruendl, RA||Gutierrez, G||Hinton, SR||Hollowood, DL||Honscheid, K||Huterer, D||James, DJ||Jeltema, T||Kron, R||Kuehn, K||Kuropatkin, N||Lima, M||Maia, MAG||Marshall, JL||Menanteau, F||Miquel, R||Morgan, R||Muir, J||Myles, J||Palmese, A||Paz-Chinchón, F||Plazas, AA||Romer, AK||Roodman, A||Sanchez, E||Santiago, B||Scarpine, V||Serrano, S||Smith, M||Suchyta, E||Swanson, MEC||Tarle, G||Thomas, D||Tucker, DL||Weller, J||Wester, W||Wilkinson, RD

publication date

  • April 2021