학술논문
Galaxy Clusters Discovered via the Thermal Sunyaev-Zel'dovich Effect in the 500-square-degree SPTpol Survey
Document Type
Working Paper
Author
Bleem, L. E.; Klein, M.; Abbott, T. M. C.; Ade, P. A. R.; Aguena, M.; Alves, O.; Anderson, A. J.; Andrade-Oliveira, F.; Ansarinejad, B.; Archipley, M.; Ashby, M. L. N.; Austermann, J. E.; Bacon, D.; Beall, J. A.; Bender, A. N.; Benson, B. A.; Bianchini, F.; Bocquet, S.; Brooks, D.; Burke, D. L.; Calzadilla, M.; Carlstrom, J. E.; Rosell, A. Carnero; Carretero, J.; Chang, C. L.; Chaubal, P.; Chiang, H. C.; Chou, T-L.; Citron, R.; Moran, C. Corbett; Costanzi, M.; Crawford, T. M.; Crites, A. T.; da Costa, L. N.; de Haan, T.; De Vicente, J.; Desai, S.; Dobbs, M. A.; Doel, P.; Everett, W.; Ferrero, I.; Flaugher, B.; Floyd, B.; Friedel, D.; Frieman, J.; Gallicchio, J.; Garc'ia-Bellido, J.; Gatti, M.; George, E. M.; Giannini, G.; Grandis, S.; Gruen, D.; Gruendl, R. A.; Gupta, N.; Gutierrez, G.; Halverson, N. W.; Hinton, S. R.; Holder, G. P.; Hollowood, D. L.; Holzapfel, W. L.; Honscheid, K.; Hrubes, J. D.; Huang, N.; Hubmayr, J.; Irwin, K. D.; Mena-Fernández, J.; James, D. J.; Kéruzoré, F.; Knox, L.; Kuehn, K.; Lahav, O.; Lee, A. T.; Lee, S.; Li, D.; Lowitz, A.; Marshal, J. L.; McDonald, M.; McMahon, J. J.; Menanteau, F.; Meyer, S. S.; Miquel, R.; Mohr, J. J.; Montgomery, J.; Myles, J.; Natoli, T.; Nibarger, J. P.; Noble, G. I.; Novosad, V.; Ogando, R. L. C.; Padin, S.; Patil, S.; Pereira, M. E. S.; Pieres, A.; Malag'on, A. A. Plazas; Pryke, C.; Reichardt, C. L.; Rodr'iguez-Monroy, M.; Romer, A. K.; Ruhl, J. E.; Saliwanchik, B. R.; Salvati, L.; Sanchez, E.; Saro, A.; Schaffer, K. K.; Schrabback, T.; Sevilla-Noarbe, I.; Sievers, C.; Smecher, G.; Smith, M.; Somboonpanyakul, T.; Stalder, B.; Stark, A. A.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; To, C.; Tucker, C.; Veach, T.; Vieira, J. D.; Vincenzi, M.; Wang, G.; Weller, J.; Whitehorn, N.; Wiseman, P.; Wu, W. L. K.; Yefremenko, V.; Zebrowski, J. A.; Zhang, Y.
Source
Open Journal of Astrophysics, Volume 7, 2024
Subject
Language
Abstract
We present a catalog of 689 galaxy cluster candidates detected at significance $\xi>4$ 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 $z>0.25$ and spans $1.5 \times 10^{14} < M_{500c} < 9.1 \times 10^{14}$ $M_\odot/h_{70}$ \ 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 $\xi$ by a median value of 0.032, or $\sim0.8\%$ of the $\xi=4$ threshold value, and $\sim7\%$ of candidates have a predicted contamination greater than $\Delta \xi = 1$. With the exception of a small number of systems $(<1\%)$, 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.
Comment: 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
Comment: 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