Van Breukelen, C.; Clewley, L.; Bonfield, D.G.; Rawlings, S.; Jarvis, M.J.; Barr, J.M.; Foucaud, S.; ... Watson, M.G.; + view all 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, M.G.; - view fewer (2006) Galaxy clusters at 0.6 < z < 1.4 in the UKIDSS ultra deep survey early data release. Monthly Notices of the Royal Astronomical Society Letters , 373 (1) L26-L30. 10.1111/j.1745-3933.2006.00236.x.

Preview

PDF 10128.pdf Download (304kB)

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.

Download activity - last month

Export as JSONCSVXML

Download activity - last 12 months

Export as XMLCSVJSON

Downloads by country - last 12 months

Export as JSONCSVXML

Archive Staff Only

View Item