학술논문
Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Correlations
Document Type
Working Paper
Author
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.; Annis, J.; Avila, S.; Bertin, E.; Bhargava, S.; Brooks, D.; Burke, D. L.; Rosell, A. Carnero; Kind, M. Carrasco; 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.; 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.
Source
Phys. Rev. Lett. 126, 141301 (2021)
Subject
Language
Abstract
Combining multiple observational probes is a powerful technique to provide robust and precise constraints on cosmological parameters. In this letter, we present the first joint analysis of cluster abundances and auto/cross correlations of three cosmic tracer fields measured from the first year data of the Dark Energy Survey: galaxy density, weak gravitational lensing shear, and cluster density split by optical richness. From a joint analysis of cluster abundances, three cluster cross-correlations, and auto correlations of galaxy density, we obtain $\Omega_{\rm{m}}=0.305^{+0.055}_{-0.038}$ and $\sigma_8=0.783^{+0.064}_{-0.054}$. This result is consistent with constraints from the DES-Y1 galaxy clustering and weak lensing two-point correlation functions for the flat $\nu\Lambda$CDM model. We thus combine cluster abundances and all two-point correlations from three cosmic tracer fields 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 multi-probe analyses of upcoming wide imaging surveys.
Comment: 14 pages, 7 figures, 2 tables; submitted to PRL; comments are welcome
Comment: 14 pages, 7 figures, 2 tables; submitted to PRL; comments are welcome