Cited by 322Galaxies: Formation, Evolution, PhenomenaCosmology and Gravitation TheoriesAstrophysics and Cosmic Phenomena

GALAXY CLUSTERS DISCOVERED WITH A SUNYAEV-ZEL'DOVICH EFFECT SURVEY

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Staniszewski, Z., Ade, P. A. R., Aird, K. A., Benson, B. A., Bleem, L. E., Carlstrom, J. E., Chang, C. L., Cho, H.-M. +36 more·2009·The Astrophysical Journal

Abstract

The South Pole Telescope (SPT) is conducting a Sunyaev–Zel'dovich (SZ) effect survey over large areas of the southern sky, searching for massive galaxy clusters to high redshift. In this preliminary study, we focus on a 40 deg 2 area targeted by the Blanco Cosmology Survey (BCS), which is centered roughly at right ascension 5 h 30 m , declination −53° (J2000). Over two seasons of observations, this entire region has been mapped by the SPT at 95 GHz, 150 GHz, and 225 GHz. We report the four most significant SPT detections of SZ clusters in this field, three of which were previously unknown and, therefore, represent the first galaxy clusters discovered with an SZ survey. The SZ clusters are detected as decrements with greater than 5σ significance in the high-sensitivity 150 GHz SPT map. The SZ spectrum of these sources is confirmed by detections of decrements at the corresponding locations in the 95 GHz SPT map and nondetections at those locations in the 225 GHz SPT map. Multiband optical images from the BCS survey demonstrate significant concentrations of similarly colored galaxies at the positions of the SZ detections. Photometric redshift estimates from the BCS data indicate that two of the clusters lie at moderate redshift ( z ∼ 0.4) and two at high redshift ( z ≳ 0.8). One of the SZ detections was previously identified as a galaxy cluster in the optical as part of the Abell supplementary southern cluster catalog and in the X-ray using data from the ROSAT All-Sky Survey (RASS). Potential RASS counterparts (not previously identified as clusters) are also found for two of the new discoveries. These first four galaxy clusters are the most significant SZ detections from a subset of the ongoing SPT survey. As such, they serve as a demonstration that SZ surveys, and the SPT in particular, can be an effective means for finding galaxy clusters.

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  • LSST will identify optical counterparts and provide deep optical imaging for clusters detected in other wavebands.

    “In addition, LSST will identify optical counterparts and provide deep optical imaging for clusters detected in other wavebands ( e.g., Staniszewski et al. 2009 ) .”

    From LSST: From Science Drivers to Reference Design and Anticipated Data Products (2019) · cites this paper as Staniszewski et al. 2009

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Research works printed but not linked: 2

  1. Halverson, N. W., et al. 2009, ApJ, in press (arXiv:0807.4208) · arXiv
  2. Ruhl, J., et al. 2004, Proc. SPIE, 5498, 11

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Authors
Staniszewski, Z., Ade, P. A. R., Aird, K. A., Benson, B. A., Bleem, L. E., Carlstrom, J. E., Chang, C. L., Cho, H.-M., Crawford, T. M., Crites, A. T., de Haan, T., Dobbs, M. A., Halverson, N. W., Holder, G. P., Holzapfel, W. L., Hrubes, J. D., Joy, M., Keisler, R., Lanting, T. M., Lee, A. T., Leitch, E. M., Loehr, A., Lueker, M., McMahon, J. J., Mehl, J., Meyer, S. S., Mohr, J. J., Montroy, T. E., Ngeow, C.-C., Padin, S., Plagge, T., Pryke, C., Reichardt, C. L., Ruhl, J. E., Schaffer, K. K., Shaw, L., Shirokoff, E., Spieler, H. G., Stalder, B., Stark, A. A., Vanderlinde, K., Vieira, J. D., Zahn, O., & Zenteno, A.
Affiliations
  • Case Western Reserve University (US)
  • Cardiff University (GB)
  • University of Chicago (US)
  • University of California, Berkeley (US)
  • McGill University (CA)
  • University of Colorado Boulder (US)
  • Marshall Space Flight Center (US)
  • Lawrence Berkeley National Laboratory (US)
  • Center for Astrophysics Harvard & Smithsonian (US)
  • University of Illinois Urbana-Champaign (US)
Venue
The Astrophysical Journal
Published
2009-07-20
Volume
701
Issue
1
Pages
32-41
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2149892437
Cited by
322
References
46
Citations by year
2026: 4 · 2025: 11 · 2024: 12 · 2023: 5 · 2022: 4 · 2021: 14 · 2020: 15 · 2019: 35 · 2018: 19 · 2017: 9 · 2016: 17 · 2015: 19 · 2014: 17 · 2013: 24 · 2012: 21
FWCI
19.66
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (publishedVersion)
  • arXiv (Cornell University)
Funders
  • National Science Foundation (0114422, 0813534, 0130612, 0715036, 0638937, 0708539)
  • Gordon and Betty Moore Foundation
  • University of Chicago
  • Adolph C. and Mary Sprague Miller Institute for Basic Research in Science, University of California Berkeley
  • McGill University
  • Kavli Institute for Cosmological Physics, University of Chicago
  • Office of Polar Programs
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Astrophysics and Cosmic Phenomena
Keywords
galaxy clusters, Sunyaev-Zel'dovich effect, South Pole Telescope, high-redshift clusters, photometric redshifts, millimeter-wave observations

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