The Canada-UK Deep Submillimeter Survey VI: The 3-Hour Field

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dc.creatorWebb, T. M. A.
dc.creatorEales, S. A.
dc.creatorLilly, S. J.
dc.creatorClements, D. L.
dc.creatorDunne, L.
dc.creatorGear, W. K.
dc.creatorFlores, H.
dc.creatorYun, M.
dc.date2002-01-11
dc.date.accessioned2026-07-07T10:47:22Z
dc.date.available2026-07-07T10:47:22Z
dc.descriptionWe present the complete submillimeter data for the Canada-UK Deep Submillimeter Survey (CUDSS) 3-hour field. The obeservations were taken with the Submillimeter Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope on Mauna Kea. The 3-hour field is one of two main fields in our survey and covers 60 square arcminutes to a 3-sigma depth of 3 mJy. In this field we have detected 27 sources above 3-sigma and 15 above 3.5-sigma. We assume the source counts follow the form $N(S) {\propto} S^{-α}$ and measure $α$ = 3.3$^{+1.4}_{-1.0}$. This is in good agreement with previous studies and further supports our claim (Eales et al., 2000) that SCUBA sources brighter than 3 mJy produce ~20% of the 850$μ$m background energy. Using preliminary ISO 15 $μ$m maps and VLA 1.4 GHz data we have identified counterparts for six objects and have marginal detections at 450$μ$m for two additional sources. With this information we estimate a median redshift for the sample of 2.0$\pm$0.5, with $\sim$10% lying at $z<$ 1. We have measured the angular clustering of S850 > 3 mJy sources using the source catalogues from the CUDSS two main fields, the 3-hour and 14-hour fields, and find a marginal detection of clustering, primarily from the 14-hour field, of $ω(θ)=4.4\pm2.9 θ^{-0.8}$. This is consistent with clustering at least as strong as that seen for the Lyman-break galaxy population and the Extremely Red Objects. Since SCUBA sources are selected over a broader range in redshifts than these two populations the strength of the true spatial clustering is expected to be correspondingly stronger.
dc.description17 pages, 8 figures, submitted to ApJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0201180
dc.identifierhttp://arxiv.org/abs/astro-ph/0201180
dc.identifierAstrophys.J.587:41-54,2003
dc.identifierdoi:10.1086/368109
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183510
dc.subjectAstrophysics
dc.titleThe Canada-UK Deep Submillimeter Survey VI: The 3-Hour Field
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