COSMOLOGICAL CONSTRAINTS FROM THE SLOAN DIGITAL SKY SURVEY MaxBCG CLUSTER CATALOG

By E. Rozo, Risa Wechsler, Eli S. Rykoff, James Annis, Matthew R. Becker, August E. Evrard, Joshua A. Frieman, S. Hansen, Jiangang Hao, D. Johnston and 4 more. 2009

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We use the abundance and weak-lensing mass measurements of the Sloan Digital Sky Survey maxBCG cluster catalog to simultaneously constrain cosmology and the richness–mass relation of the clusters. Assuming a flat ΛCDM cosmology, we find σ8(Ωm/0.25)0.41 = 0.832 ± 0.033 after marginalization over all systematics. In common with previous studies, our error budget is dominated by systematic uncertainties, the primary two being the absolute mass scale of the weak-lensing masses of the maxBCG clusters, and uncertainty in the scatter of the richness–mass relation. Our constraints are fully consistent with the WMAP five-year data, and in a joint analysis we find σ8 = 0.807 ± 0.020 and Ωm = 0.265 ± 0.016, an improvement of nearly a factor of 2 relative to WMAP5 alone. Our results are also in excellent agreement with and comparable in precision to the latest cosmological constraints from X-ray cluster abundances. The remarkable consistency among these results demonstrates that cluster abundance constraints are not only tight but also robust, and highlight the power of optically selected cluster samples to produce precision constraints on cosmological parameters.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/322a0cc2a7d00cb8f3834d0b2d74f450ef045272

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Citations in the corpus

Galaxy formation theory (2010, background): “…2005; Tegmark et al. 2006; Percival et al. 2007a,b), the Type Ia supernovae magnitude–redshift relation (Kowalski et al. 2008) and galaxy clusters (Mantz et al., 2009; Vikhlinin et al., 2009; Rozo et al., 2010), have now placed strong constraints on theparameters of the cold dark matter cosmogony.”
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GALAXY CLUSTERS DISCOVERED VIA THE SUNYAEV–ZEL’DOVICH EFFECT IN THE FIRST 720 SQUARE DEGREES OF THE SOUTH POLE TELESCOPE SURVEY (2012, methodology): “ΛCDM constraints In a ΛCDM model, cluster samples primarily constrain σ8 and Ωm (see e.g., B11, Rozo et al. 2010).”
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Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report (2015, methodology): “The strategy of stacked weak lensing mass calibration of clusters for cosmological constraints has been successfully implemented by Rozo et al. (2010) for optically selected clusters and Mantz et al. (2014) for Xray selected clusters, yielding some of the tightest current constraints on the…”
The Atacama Cosmology Telescope: Sunyaev-Zel'dovich selected galaxy clusters at 148 GHz from three seasons of data (2013, neutral): “Recent results have demonstrated the power of modern optical and X-ray surveys for constraining cosmology (e.g., Vikhlinin et al. 2009b; Mantz et al. 2010b; Rozo et al. 2010).”
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THE BLANCO COSMOLOGY SURVEY: DATA ACQUISITION, PROCESSING, CALIBRATION, QUALITY DIAGNOSTICS, AND DATA RELEASE (2012, methodology): “First cosmological constraints using SDSS optical catalogs are described in Rozo et al. (2010).”
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SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: COSMOLOGICAL INTERPRETATION (2010, background): “Reid et al. (2010b) added the maxBCG prior, σ8(Ωm/0.25) 0.41 = 0.832 ± 0.033 (68% CL; Rozo et al. 2010), to the 5-year WMAP+BAO+SN+HST, and found Neff = 3.5 ± 0.9 (68% CL).”
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THE ATACAMA COSMOLOGY TELESCOPE: COSMOLOGY FROM GALAXY CLUSTERS DETECTED VIA THE SUNYAEV–ZEL'DOVICH EFFECT (2010, result): “We also find consistency with optical samples yielding σ8(Ωm/0.25)0.41 = 0.832±0.033 for a flat ΛCDM model (Rozo et al. 2010).”
COSMOLOGICAL CONSTRAINTS FROM GALAXY CLUSTERS IN THE 2500 SQUARE-DEGREE SPT-SZ SURVEY (2016, background): “In addition, our cosmological constraints are consistent with other previous cluster surveys, including constraints from the X-ray selected sample from Vikhlinin et al. (2009b) and the optically selected sample from Rozo et al. (2010).”
Formation of Galaxy Clusters (2012, methodology): “…counts measured at high redshifts provide interesting constraints on cosmological parameters complementary to other methods (e.g., Mantz et al. 2010b, Rozo et al. 2010, Vikhlinin et al. 2009c) and a crucial test of the entire class ofΛCDM and quintessence models (e.g., Benson et al. 2011; Jee etal.”
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