标题： 加拿大-英国深亚毫米波调查 VII：14小时场的光学和近红外识别 显示英文标题

标题： The Canada-UK Deep Submillimeter Survey VII: Optical and near-infrared identifications for the 14h field

摘要： 我们给出了加拿大-英国亚毫米波深巡天（CUDSS）14h区域内的23个源的多波段对应体识别结果。这些识别是基于射电和近红外数据选择的，并且我们认为，在我们的观测限制范围内，两者都能有效地选出亚毫米波源的正确对应体。我们讨论了这些识别的性质，发现它们在近红外颜色上非常红，许多被归类为极端红源，并显示出扰动的形态。 利用完整的CUDSS星表中的50个源，我们结合光谱红移（4个源）、1.4GHz到850微米流量比估算的红移（10个源），以及基于1.4GHz未探测到的红移下限（样本的其余部分），估计出该群体中值红移的下限为z_med > 1.4。 从简单的模型出发，并使用可靠识别的性质，我们讨论了红移分布以及整个群体预期的颜色和亮度的一般性和试探性限制。 显示英文摘要

摘要： We present the multi-wavelength identifications for 23 sources in the Canada-UK Deep Submillimeter Survey (CUDSS) 14h field. The identifications have been selected on the basis of radio and near-infrared data and we argue that, to our observational limits, both are effective at selecting the correct counterparts of the SCUBA sources. We discuss the properties of these identifications and find that they are very red in near-infrared color, with many classified as Extremely Red Objects, and show disturbed morphologies. Using the entire CUDSS catalogue of 50 sources we use a combination of spectroscopic redshifts (4 objects), 1.4GHz-to-850um flux ratio redshift estimates (10 objects), and redshift lower-limits based on non-detections at 1.4GHz (the rest of the sample) to estimate a lower-limit on the median redshift of the population of z_med > 1.4. Working from simple models and using the properties of the secure identifications, we discuss general and tentative constraints on the redshift distribution and the expected colors and magnitudes of the entire population.