Galaxy Clusters Discovered via the Thermal Sunyaev-Zel'dovich Effect in the 500-square-degree SPTpol Survey
Creators: name: Bleem, L. E.
name: Klein, M.
name: Abbott, T. M. C.
name: Ade, P. A. R.
name: Aguena, M.
name: Alves, O.
name: Anderson, A. J.
name: Andrade-Oliveira, F.
name: Ansarinejad, B.
name: Archipley, M.
name: Ashby, M. L. N.
name: Austermann, J. E.
name: Bacon, D.
name: Beall, J. A.
name: Bender, A. N.
name: Benson, B. A.
name: Bianchini, F.
name: Bocquet, S.
name: Brooks, D.
name: Burke, D. L.
name: Calzadilla, M.
name: Carlstrom, J. E.
name: Rosell, A. Carnero
name: Carretero, J.
name: Chang, C. L.
name: Chaubal, P.
name: Chiang, H. C.
name: Chou, T-L.
name: Citron, R.
name: Moran, C. Corbett
name: Costanzi, M.
name: Crawford, T. M.
name: Crites, A. T.
name: da Costa, L. N.
name: de Haan, T.
name: De Vicente, J.
name: Desai, S.
name: Dobbs, M. A.
name: Doel, P.
name: Everett, W.
name: Ferrero, I.
name: Flaugher, B.
name: Floyd, B.
name: Friedel, D.
name: Frieman, J.
name: Gallicchio, J.
name: Garc'ia-Bellido, J.
name: Gatti, M.
name: George, E. M.
name: Giannini, G.
name: Grandis, S.
name: Gruen, D.
name: Gruendl, R. A.
name: Gupta, N.
name: Gutierrez, G.
name: Halverson, N. W.
name: Hinton, S. R.
name: Holder, G. P.
name: Hollowood, D. L.
name: Holzapfel, W. L.
name: Honscheid, K.
name: Hrubes, J. D.
name: Huang, N.
name: Hubmayr, J.
name: Irwin, K. D.
name: Mena-Fernández, J.
name: James, D. J.
name: Kéruzoré, F.
name: Knox, L.
name: Kuehn, K.
name: Lahav, O.
name: Lee, A. T.
name: Lee, S.
name: Li, D.
name: Lowitz, A.
name: Marshal, J. L.
name: McDonald, M.
name: McMahon, J. J.
name: Menanteau, F.
name: Meyer, S. S.
name: Miquel, R.
name: Mohr, J. J.
name: Montgomery, J.
name: Myles, J.
name: Natoli, T.
name: Nibarger, J. P.
name: Noble, G. I.
name: Novosad, V.
name: Ogando, R. L. C.
name: Padin, S.
name: Patil, S.
name: Pereira, M. E. S.
name: Pieres, A.
name: Malag'on, A. A. Plazas
name: Pryke, C.
name: Reichardt, C. L.
name: Rodr'iguez-Monroy, M.
name: Romer, A. K.
name: Ruhl, J. E.
name: Saliwanchik, B. R.
name: Salvati, L.
name: Sanchez, E.
name: Saro, A.
name: Schaffer, K. K.
name: Schrabback, T.
name: Sevilla-Noarbe, I.
name: Sievers, C.
name: Smecher, G.
name: Smith, M.
name: Somboonpanyakul, T.
name: Stalder, B.
name: Stark, A. A.
name: Suchyta, E.
name: Swanson, M. E. C.
name: Tarle, G.
name: To, C.
name: Tucker, C.
name: Veach, T.
name: Vieira, J. D.
name: Vincenzi, M.
name: Wang, G.
name: Weller, J.
name: Whitehorn, N.
name: Wiseman, P.
name: Wu, W. L. K.
name: Yefremenko, V.
name: Zebrowski, J. A.
name: Zhang, Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present a catalog of 689 galaxy cluster candidates detected at significance $ξ&gt;4$ via their thermal Sunyaev-Zel'dovich (SZ) effect signature in 95 and 150 GHz data from the 500-square-degree SPTpol survey. We use optical and infrared data from the Dark Energy Camera and the Wide-field Infrared Survey Explorer (WISE) and \spitzer \ satellites, to confirm 544 of these candidates as clusters with $\sim94\%$ purity. The sample has an approximately redshift-independent mass threshold at redshift $z&gt;0.25$ and spans $1.5 \times 10^{14} &lt; M_{500c} &lt; 9.1 \times 10^{14}$ $M_\odot/h_{70}$ \ and $0.031$. We use external radio data from the Sydney University Molonglo Sky Survey (SUMSS) to estimate contamination to the SZ signal from synchrotron sources. The contamination reduces the recovered $ξ$ by a median value of 0.032, or $\sim0.8\%$ of the $ξ=4$ threshold value, and $\sim7\%$ of candidates have a predicted contamination greater than $Δξ= 1$. With the exception of a small number of systems $(&lt;1\%)$, an analysis of clusters detected in single-frequency 95 and 150 GHz data shows no significant contamination of the SZ signal by emission from dusty or synchrotron sources. This cluster sample will be a key component in upcoming astrophysical and cosmological analyses of clusters. The SPTpol millimeter-wave maps and associated data products used to produce this sample are available at https://pole.uchicago.edu/public/data/sptpol_500d_clusters/index.html, and the NASA LAMBDA website. An interactive sky server with the SPTpol maps and Dark Energy Survey data release 2 images is also available at NCSA https://skyviewer.ncsa.illinois.edu.
description: Matches version accepted by OJA. 19 pages + references, 14 figures, cluster candidate table provided in Appendix. Data products available at https://pole.uchicago.edu/public/data/sptpol_500d_clusters/index.html and an interactive sky server at https://skyviewer.ncsa.illinois.edu