MNRAS-2012-Mehrtens-1024-52.pdf (7.74 MB)
The XMM Cluster Survey: Optical analysis methodology and the first data release
journal contribution
posted on 2023-06-08, 09:51 authored by Nicola Mehrtens, Kathy RomerKathy Romer, E J Lloyd-Davies, Matt Hilton, Christopher J. Miller, S A Stanford, Mark Hosmer, Ben Hoyle, Chris A Collins, Andrew R Liddle, Pedro T P Viana, Robert Nicholls, John P Stott, E. Naomi Dubois, Scott T Kay, Martin Sahlén, Owain E Young, C J Short, Linda Christoforou, Wiliam Watson, Michael Davidson, Craig. D Harrison, Leon Baruah, Mathew Smith, Claire Burke, Paul-James Deadmen, Philip Rooney, Edward M Edmondson, Michael West, Heather C Campbell, Alastair C. Edge, Robert G Mann, David A. Wake, Christopher Benoist, Luiz Da costa, Marcio Maia, Ricardo OgandoThe XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM-Newton Science Archive. Its main aims are to measure cosmological parameters and trace the evolution of X-ray scaling relations. In this paper we present the first data release from the XMM Cluster Survey (XCS-DR1). This consists of 503 optically confirmed, serendipitously detected, X-ray clusters. Of these clusters, 255 are new to the literature and 356 are new X-ray discoveries. We present 464 clusters with a redshift estimate (0.06 < z < 1.46), including 261 clusters with spectroscopic redshifts. In addition, we have measured X-ray temperatures (Tx) for 402 clusters (0.4 < Tx < 14.7 keV). We highlight seven interesting subsamples of XCS-DR1 clusters: (i) 10 clusters at high redshift (z > 1.0, including a new spectroscopically-confirmed cluster at z = 1.01); (ii) 67 clusters with high Tx (> 5 keV); (iii) 131 clusters/groups with low Tx (< 2 keV); (iv) 27 clusters with measured Tx values in the SDSS `Stripe 82' co-add region; (v) 78 clusters with measured Tx values in the Dark Energy Survey region; (vi) 40 clusters detected with sufficient counts to permit mass measurements (under the assumption of hydrostatic equilibrium); (vii) 105 clusters that can be used for applications such as the derivation of cosmological parameters and the measurement of cluster scaling relations. The X-ray analysis methodology used to construct and analyse the XCS-DR1 cluster sample has been presented in a companion paper, Lloyd-Davies et al. (2010).
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Monthly Notices of the Royal Astronomical SocietyISSN
1745-3925Publisher URL
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2Volume
66Page range
1024Department affiliated with
- Physics and Astronomy Publications
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arXiv: 1106.3056Full text available
- Yes
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- Yes
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2012-05-14First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-08-17Usage metrics
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