학술논문
Galaxy Clusters Discovered via the Thermal Sunyaev-Zel'dovich Effect in the 500-square-degree SPTpol Survey
Document Type
article
Author
L.E. Bleem; M. Klein; T. M. C. Abbott; P. A. R. Ade; M. Aguena; O. Alves; A. J. Anderson; F. Andrade-Oliveira; B. Ansarinejad; M. Archipley; M. L. N. Ashby; J. E. Austermann; D. Bacon; J. A. Beall; A. N. Bender; B. A. Benson; F. Bianchini; S. Bocquet; D. Brooks; D. L. Burke; M. Calzadilla; J. E. Carlstrom; A. Carnero Rosell; J. Carretero; C. L. Chang; P. Chaubal; H. C. Chiang; T-L. Chou; R. Citron; C. Corbett Moran; M. Costanzi; T. M. Crawford; A. T. Crites; L. N. da Costa; T. de Haan; J. De Vicente; S. Desai; M. A. Dobbs; P. Doel; W. Everett; I. Ferrero; B. Flaugher; B. Floyd; D. Friedel; J. Frieman; J. Gallicchio; J. Garc'ia-Bellido; M. Gatti; E. M. George; G. Giannini; S. Grandis; D. Gruen; R. A. Gruendl; N. Gupta; G. Gutierrez; N. W. Halverson; S. R. Hinton; G. P. Holder; D. L. Hollowood; W. L. Holzapfel; K. Honscheid; J. D. Hrubes; N. Huang; J. Hubmayr; K. D. Irwin; J. Mena-Fernández; D. J. James; F. Kéruzoré; L. Knox; K. Kuehn; O. Lahav; A. T. Lee; S. Lee; D. Li; A. Lowitz; J. L. Marshal; M. McDonald; J. J. McMahon; F. Menanteau; S. S. Meyer; R. Miquel; J. J. Mohr; J. Montgomery; J. Myles; T. Natoli; J. P. Nibarger; G. I. Noble; V. Novosad; R. L. C. Ogando; S. Padin; S. Patil; M. E. S. Pereira; A. Pieres; A. A. Plazas Malag'on; C. Pryke; C. L. Reichardt; M. Rodr'iguez-Monroy; A. K. Romer; J. E. Ruhl; B. R. Saliwanchik; L. Salvati; E. Sanchez; A. Saro; K. K. Schaffer; T. Schrabback; I. Sevilla-Noarbe; C. Sievers; G. Smecher; M. Smith; T. Somboonpanyakul; B. Stalder; A. A. Stark; E. Suchyta; M. E. C. Swanson; G. Tarle; C. To; C. Tucker; T. Veach; J. D. Vieira; M. Vincenzi; G. Wang; J. Weller; N. Whitehorn; P. Wiseman; W. L. K. Wu; V. Yefremenko; J. A. Zebrowski; Y. Zhang
Source
The Open Journal of Astrophysics, Vol 7 (2024)
Subject
Language
English
ISSN
2565-6120
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 $1.5 \times 10^{14} < M_{500c} < 9 \times 10^{14}$ $M_\odot/h_{70}$ 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 $(