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Title: Galaxy clusters at 0.6 < z < 1.4 in the UKIDSS Ultra Deep Survey Early Data Release
Authors: van Breukelen, C.
Clewley, L.
Bonfield, D.G.
Rawlings, S.
Jarvis, M.J.
Barr, J.M.
Foucaud, S.
Almaini, O.
Cirasuolo, M.
Dalton, G.
Dunlop, J.S.
Edge, A.C.
Hirst, P.
McLure, R.J.
Page, M.J.
Sekiguchi, K.
Simpson, C.
Smail, I.
Watson, Michael G.
First Published: 13-Oct-2006
Publisher: Blackwell Publishing on behalf of the Royal Astronomical Society
Citation: Monthly Notices of the Royal Astronomical Society, 2006, 373 (1), pp. L26-L30 (5)
Abstract: We present the first cluster catalogue extracted from the UKIRT Infrared Deep Sky Survey (UKIDSS) Early Data Release. The catalogue is created using UKIDSS Ultra Deep Survey infrared J and K data combined with 3.6- and 4.5-mu m Spitzer bands and optical BVRi'z' imaging from the Subaru Telescope over 0.5 deg(2) in the Subaru XMM-Newton Deep Field. We have created a new cluster detection algorithm, based on the friends-of-friends and Voronoi tessellation methods, which utilizes probability distribution functions derived from a photometric redshift analysis. We employ mock catalogues to understand the selection effects and contamination associated with the algorithm. The cluster catalogue contains 13 clusters at redshifts 0.61 <= z <= 1.39 with luminosities 10 L* less than or similar to L(tot) less than or similar to 50 L*, corresponding to masses 5 x 10(13) less than or similar to M(cluster) less than or similar to 3 x 10(14)M circle dot for (M/M circle dot)/( L/L circle dot) = 75 h. The measured sky surface density of similar to 10 clusters deg(-2) for high-redshift (z = 0.5-1.5), massive (> 10(14)M circle dot) clusters is precisely in line with theoretical predictions presented by Kneissl et al.
DOI Link: 10.1111/j.1745-3933.2006.00236.x
ISSN: 0035-8711
eISSN: 1365-2966
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2006 The Authors. Journal compilation © 2006 RAS. Deposited with reference to the publisher's archiving policy available from the Journal Exclusive Licence Form, which permits posting of the Blackwell Publishing PDF 6 months after publication. The definitive version is available from
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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