2006/08/29 by C. van Breukelen, C. Van Breukelen, L. Clewley +17 · 45 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Cluster (spacecraft) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Infrared #Large Synoptic Survey Telescope #Redshift #Sky #Stellar, planetary, and galactic studies #Subaru Telescope #astro-ph
paper · pdf · doi:10.1111/j.1745-3933.2006.00236.x
published in Monthly Notices of the Royal Astronomical Society Letters 373(1), L26-L30 (Oxford University Press) · 6 pages, 1 figure, accepted for publication in MNRAS. For full-resolution version see http://www-astro.physics.ox.ac.uk/~cvb/cvb_lc_letterv2.ps
arxiv created 2006/08/29 · openalex publication_date 2006/10/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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-μm Spitzer bands and optical BVRi′z′ imaging from the Subaru Telescope over 0.5 deg2 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*≲Ltot≲ 50 L*, corresponding to masses 5 × 1013≲Mcluster≲ 3 × 1014 M⊙ for (M/M⊙)/(L/L⊙) = 75 h. The measured sky surface density of ∼10 clusters deg−2 for high-redshift (z= 0.5–1.5), massive (> 1014 M⊙) clusters is precisely in line with theoretical predictions presented by Kneissl et al.