A SUNYAEV–ZEL'DOVICH-SELECTED SAMPLE OF THE MOST MASSIVE GALAXY CLUSTERS IN THE 2500 deg2 SOUTH POLE TELESCOPE SURVEY

By R. Williamson, B. Benson, F. High, K. Vanderlinde, P. Ade, K. Aird, K. Andersson, R. Armstrong, M. Ashby, M. Bautz and 65 more. 2011

216 citations recorded by the source corpus.

The South Pole Telescope (SPT) is currently surveying 2500 deg2 of the southern sky to detect massive galaxy clusters out to the epoch of their formation using the Sunyaev–Zel'dovich (SZ) effect. This paper presents a catalog of the 26 most significant SZ cluster detections in the full survey region. The catalog includes 14 clusters which have been previously identified and 12 that are new discoveries. These clusters were identified in fields observed to two differing noise depths: 1500 deg2 at the final SPT survey depth of 18 μK arcmin at 150 GHz and 1000 deg2 at a depth of 54 μK arcmin. Clusters were selected on the basis of their SZ signal-to-noise ratio (S/N) in SPT maps, a quantity which has been demonstrated to correlate tightly with cluster mass. The S/N thresholds were chosen to achieve a comparable mass selection across survey fields of both depths. Cluster redshifts were obtained with optical and infrared imaging and spectroscopy from a variety of ground- and space-based facilities. The redshifts range from 0.098 ⩽ z ⩽ 1.132 with a median of zmed = 0.40. The measured SZ S/N and redshifts lead to unbiased mass estimates ranging from 9.8 × 1014 M☉ h−170 ⩽ M200(ρmean) ⩽ 3.1 × 1015 M☉ h−170. Based on the SZ mass estimates, we find that none of the clusters are individually in significant tension with the ΛCDM cosmological model. We also test for evidence of non-Gaussianity based on the cluster sample and find the data show no preference for non-Gaussian perturbations.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/e76e600c8d59e7c0a805a811eb33d7d2fd535191

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Citations in the corpus

ALMA REDSHIFTS OF MILLIMETER-SELECTED GALAXIES FROM THE SPT SURVEY: THE REDSHIFT DISTRIBUTION OF DUSTY STAR-FORMING GALAXIES (2013, methodology): “Sources were selected from the first 1300 deg2 of the now complete 2500deg2 SPT-SZ survey (for more details on the survey, see Williamson et al. 2011; Story et al. 2012).”
THE ATACAMA COSMOLOGY TELESCOPE: ACT-CL J0102−4915 “EL GORDO,” A MASSIVE MERGING CLUSTER AT REDSHIFT 0.87 (2011, background): “At the cluster redshift of 0.87, the lower end of this mass range falls below the ACT+SPT region exclusion curve, while the upper end of this range falls well below the full-sky exclusion curve.”
Weighing the giants – IV. Cosmology and neutrino mass (2014, methodology): “In addition to Shandera et al. (2013b), previous constraints on non-Gaussianity have been obtained by, e.g., Williamson et al. (2011) and Benson et al. (2013) from the SPT cluster sample and Mana et al. (2013) based on the MaxBCG sample.”
The Atacama Cosmology Telescope: A Catalog of >4000 Sunyaev–Zel’dovich Galaxy Clusters (2020, methodology): “SZ cluster surveys over large areas of sky have been conducted by the South Pole Telescope (SPT; e.g., Williamson et al. 2011; Bleem et al. 2015b, 2020; Huang et al. 2020a), the Planck satellite mission (Planck Collaboration et al. 2014b, 2016b), and the Atacama Cosmology Telescope (ACT; Marriage…”
A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND DAMPING TAIL FROM THE 2500-SQUARE-DEGREE SPT-SZ SURVEY (2012, background): “The results of that bright cluster search were published in Williamson et al. (2011).”
A MEASUREMENT OF GRAVITATIONAL LENSING OF THE MICROWAVE BACKGROUND USING SOUTH POLE TELESCOPE DATA (2012, background): “…the growth of structure to constrain the dark energy equation of state (Staniszewski et al. 2009; Vanderlinde et al. 2010; Foley et al. 2011; Williamson et al. 2011) and to measure the power spectrum of the mm-wave sky on small angular scales (Lueker et al. 2010; Hall et al. 2010;…”
Observational probes of cosmic acceleration (2012, background): “All three projects have released SZ-selected cluster samples (Vanderlinde et al., 2010; Marriage et al., 2011; Planck Collaboration et al., 2011a; Williamson et al., 2011; Reichardt et al., 2013).”
GALAXY CLUSTERS DISCOVERED VIA THE SUNYAEV–ZEL’DOVICH EFFECT IN THE FIRST 720 SQUARE DEGREES OF THE SOUTH POLE TELESCOPE SURVEY (2012, methodology): “Optical/NIR Imaging Data Reduction and Redshift Determination All optical images are processed using the PHOTPIPE analysis pipeline (Rest et al. 2005; Miknaitis et al. 2007), as was done in previous SPT optical follow up analyses (High et al. 2010; Williamson et al. 2011; Story et al. 2011).”
The pre-launch Planck Sky Model: a model of sky emission at submillimetre to centimetre wavelengths (2012, background): “Those observations aim both at studying previously known clusters (Basu et al. 2010; Zwart et al. 2011; Hincks et al. 2010) and at discovering new objects blindly (Vanderlinde et al. 2010; Williamson et al. 2011; Planck Collaboration 2011c; Marriage et al. 2011a; Reichardt et al. 2013).”
The Atacama Cosmology Telescope: Sunyaev-Zel'dovich selected galaxy clusters at 148 GHz from three seasons of data (2013, background): “…effect (SZ; Sunyaev & Zel’dovich 1970) have also begun to deliver cluster samples (e.g., Staniszewski et al. 2009; Marriage et al. 2011; Williamson et al. 2011; Planck Collaboration 2011a; Reichardt et al. 2013) and constraints on cosmological parameters (Vanderlinde et al. 2010;…”
THE BLANCO COSMOLOGY SURVEY: DATA ACQUISITION, PROCESSING, CALIBRATION, QUALITY DIAGNOSTICS, AND DATA RELEASE (2012, background): “These clusters and their BCS derived redshifts have figured prominently in SPT publications to date (Staniszewski et al. 2009; Vanderlinde et al. 2010; High et al. 2010; Andersson et al. 2011; Williamson et al. 2011; Reichardt et al. 2012; Song et al. 2012).”
EMU: Evolutionary Map of the Universe (2011, methodology): “…the X-ray selected population from surveys such as the eROSITA allsky X-ray survey (Predehl et al. 2010), and the Sunyaev–Zeldovich surveys made with the South Pole Telescope (Williamson et al. 2011), Atacama Cosmology Telescope (Marriage et al. 2010) and Planck (Planck Collaboration 2011) surveys.”