Journal article
South pole telescope detections of the previously unconfirmed Planck Early Sunyaev-Zel'dovich clusters in the southern hemisphere
K Story, KA Aird, K Andersson, R Armstrong, G Bazin, BA Benson, LE Bleem, M Bonamente, M Brodwin, JE Carlstrom, CL Chang, A Clocchiatti, TM Crawford, AT Crites, T De Haan, S Desai, MA Dobbs, JP Dudley, RJ Foley, EM George Show all
Astrophysical Journal Letters | IOP PUBLISHING LTD | Published : 2011
Abstract
We present South Pole Telescope (SPT) observations of the five galaxy cluster candidates in the southern hemisphere which were reported as unconfirmed in the Planck Early Sunyaev-Zel'dovich (ESZ) sample. One cluster candidate, PLCKESZ G255.62-46.16, is located in the 2500deg2 SPT SZ survey region and was reported previously as SPT-CL J0411-4819. For the remaining four candidates, which are located outside of the SPT SZ survey region, we performed short, dedicated SPT observations. Each of these four candidates was strongly detected in maps made from these observations, with signal-to-noise ratios ranging from 6.3 to 13.8. We have observed these four candidates on the Magellan-Baade telescope..
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Awarded by National Science Foundation
Funding Acknowledgements
The SPT is supported by NSF grant ANT-0638937. Partial support is also provided by NSF grant PHY-0114422, the Kavli Foundation, and the Gordon and Betty Moore Foundation. The McGill group acknowledges funding from the NSERC of Canada, the Quebec Fonds de recherche sur la nature et les technologies, and the CIAR. Galaxy cluster research is supported at Harvard by NSF grant AST-1009012 and at SAO by NSF grants AST-1009649 and MRI-0723073. Benson acknowledges support from a KICP Fellowship, M. Brodwin from the W. M. Keck Foundation, A. Clocchiatti from CONICYT grants Basal CATA PFB 06/09 and FONDAP No. 15010003, R. J. Foley from a Clay Fellowship, R. Keisler from NASA Hubble Fellowship grant HF-51275.01, and B. Stalder from the Brinson Foundation.