A SCUBA Scan-map of the HDF: Measuring the bright end of the sub-mm source counts
نویسندگان
چکیده
Using the 850μm SCUBA camera on the JCMT and a scanning technique different from other sub-mm surveys, we have obtained a 125 square arcminute map centered on the Hubble Deep Field. The one-sigma sensitivity to point sources is roughly 3mJy and thus our map probes the brighter end of the sub-mm source counts. We find 6 sources with a flux greater than about 12mJy (> 4σ) and, after a careful accounting of incompleteness and flux bias, estimate the integrated density of bright sources N(> 12mJy) = 164 −58 degree −2 (68 per cent confidence bounds).
منابع مشابه
The Brighter Side of Sub-mm Source Counts: a Scuba Scan-map of the Hubble Deep Field
We present an 11 × 11 arcminute map centred on the Hubble Deep Field taken at 850μm with the SCUBA camera on the JCMT. The map has an average onesigma sensitivity to point sources of about 2.3 mJy and thus probes the brighter end of the sub-mm source counts. We find 7 sources with a flux greater than 9mJy (∼ 4σ), and therefore estimate N(> 9mJy) = 208 −72 degree . This result is consistent with...
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