X-ray groups and clusters of galaxies in the Subaru–XMM Deep Field
Creators
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Finoguenov, A.1, 2
- Watson, A. G.3
- Tanaka, M.4
- Simpson, C.5
- Cirasuolo, M.6
- Dunlop, J. S.6
- Peacock, J. A.6
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Farrah, D.7
- Akiyama, M.8
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Ueda, Y.9
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Smolčić, V.10
- Stewart, G.3
- Rawlings, S.11
- van Breukelen, C.11
- Almaini, O.12
- Clewley, L.11
- Bonfield, D. G.13
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Jarvis, M. J.13
- Barr, J. M.11
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Foucaud, S.12
- McLure, R. J.6
- Sekiguchi, K.14
- Egami, E.15
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1.
Max Planck Institute for Extraterrestrial Physics
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2.
University of Maryland, Baltimore County
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3.
University of Leicester
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4.
European Southern Observatory
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5.
Liverpool John Moores University
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6.
University of Edinburgh
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7.
University of Sussex
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8.
Tohoku University
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9.
Kyoto University
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10.
California Institute of Technology
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11.
University of Oxford
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12.
University of Nottingham
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13.
University of Hertfordshire
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14.
University of Hawaii at Hilo
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15.
University of Arizona
Abstract
We present the results of a search for galaxy clusters in the Subaru–XMM Deep Field (SXDF). We reach a depth for a total cluster flux in the 0.5–2 keV band of 2 × 10^(−15) erg cm^(−2) s^(−1) over one of the widest XMM–Newton contiguous raster surveys, covering an area of 1.3 deg^2. Cluster candidates are identified through a wavelet detection of extended X-ray emission. The red-sequence technique allows us to identify 57 cluster candidates. We report on the progress with the cluster spectroscopic follow-up and derive their properties based on the X-ray luminosity and cluster scaling relations. In addition, three sources are identified as X-ray counterparts of radio lobes, and in three further sources, an X-ray counterpart of the radio lobes provides a significant fraction of the total flux of the source. In the area covered by near-infrared data, our identification success rate achieves 86 per cent. We detect a number of radio galaxies within our groups, and for a luminosity-limited sample of radio galaxies we compute halo occupation statistics using a marked cluster mass function. We compare the cluster detection statistics in the SXDF with that in the literature and provide the modelling using the concordance cosmology combined with current knowledge of the X-ray cluster properties. The joint cluster log(N) − log(S) is overpredicted by the model, and an agreement can be achieved through a reduction of the concordance σ_8 value by 5 per cent. Having considered the dn/dz and the X-ray luminosity function of clusters, we conclude that to pin down the origin of disagreement a much wider (50 deg^2) survey is needed.
Additional Information
© 2010 The Authors. Journal compilation © 2010 RAS. Accepted 2009 December 22. Received 2009 December 18; in original form 2009 September 24. Published Online: 25 Feb 2010. In Germany, the XMM–Newton project is supported by the Bundesministerium fuer Wirtschaft und Technologie/Deutsches Zentrum fuer Luft-und Raumfahrt (BMWI/DLR,FKZ50OX0001). A part of this work was supported by the Deutsches Zentrum für Luft-und Raumfahrt, DLR project numbers 50 OR 0207 and 50 OR 0405. AF acknowledges support from Spitzer UDS Legacy programme to UMBC. AF thanks Andy Fabian for useful discussions regarding the X-ray jets. AF thanks the University of Leicester for the hospitality during his frequent visits. The authors thank the referee for useful comments on the manuscript.Attached Files
Published - Finoguenov2010p9857Mon_Not_R_Astron_Soc.pdf
Supplemental Material - sm001.zip
Files
Finoguenov2010p9857Mon_Not_R_Astron_Soc.pdf
Additional details
Identifiers
- Eprint ID
- 18463
- Resolver ID
- CaltechAUTHORS:20100526-133338520
Funding
- Bundesministerium für Wirtschaft und Technologie
- FKZ50OX0001
- Deutsches Zentrum für Luft-und Raumfahrt (DLR)
- 50 OR 0207
- Deutsches Zentrum für Luft-und Raumfahrt (DLR)
- 50 OR 0405
- Spitzer UDS Legacy
Dates
- Created
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2010-05-27Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)