WIRCam超深测量（WUDS）I.巡天概况和z~5和z~6处的UV光度函数
The WIRCam Ultra Deep Survey (WUDS) I. Survey overview and UV luminosity functions at z~5 and z~6
摘要：
本文的目的是介绍WIRCam超深巡天（WUDS），这是一项在CFH望远镜CFHTLS-D3场（Groth Strip）进行的近红外测光公众巡天。WUDS包括四个近红外波段（Y、J、H和K_s），视场约为400弧分^[2]。WUDS数据的典型深度在Y和J之间达到~26.8，在H和K_s之间达到~26（AB，在1.3弧秒孔径下为3 σ）。这次调查的面积和深度是专门为宇宙恒星形成率和亮度函数设置强约束的，亮度函数在z~6-10红移域中更亮或在L* 附近，尽管这些数据对各种河外项目也很有用。目录建设，完整性和深度，数量计数，光度红移，和星系人口的全球性质。我们还对z~[4.5-7]处的星系样品进行了研究。利用WUDS在中间光度下覆盖特别有趣的区域的事实，在z~5和z~6处导出UV光度函数，这允许以更高的精度组合确定M* 和Phi*。我们的光度函数的结果是一致的一个小的演变M* 和φ * 之间的z=5和z=6，无论使用的方法来推导它们，无论是光度红移适用于盲目选择的辍学样品或经典的莱曼Break星系颜色预选样品。我们的研究结果提供支持，以更高的Φ * 测定在z=6比通常报道。在z>7的不同星系样本的选择和综合分析将在即将发表的论文中介绍。WUDS的目的是提供一个强大的近红外数据库，用于选择详细光谱研究的目标，特别是EMIR/GTC GOYA调查（摘要）
英文摘要：
The aim of this paper is to introduce the WIRCam Ultra Deep Survey (WUDS), a near-IR photometric public survey carried out at the CFH Telescope in the field of the CFHTLS-D3 field (Groth Strip). WUDS includes four near-IR bands (Y, J, H and K_s) over a field of view of ~400 arcmin^2. The typical depth of WUDS data reaches between ~26.8 in Y and J, and ~26 in H and K_s (AB, 3 sigma in 1.3 arcsec aperture). The area and depth of this survey were specifically tailored to set strong constraints on the cosmic star formation rate and the luminosity function brighter or around L* in the z~6-10 redshift domain, although these data are also useful for a variety of extragalactic projects.This first paper is intended to present the properties of WUDS: catalog building, completeness and depth, number counts, photometric redshifts, and global properties of the galaxy population. We have also concentrated on the study of galaxy samples at z~[4.5-7] in this field. UV luminosity functions were derived at z~5 and z~6 taking advantage from the fact that WUDS covers a particularly interesting regime at intermediate luminosities, which allows a combined determination of M* and Phi* with increased accuracy. Our results on the luminosity function are consistent with a small evolution of both M* and Phi* between z=5 and z=6, irrespective of the method used to derive them, either photometric redshifts applied to blindly-selected dropout samples or the classical Lyman Break Galaxy color-preselected samples. Our results lend support to higher Phi* determinations at z=6 than usually reported. The selection and combined analysis of different galaxy samples at z>7 will be presented in a forthcoming paper. WUDS is intended to provide a robust database in the near-IR for the selection of targets for detailed spectroscopic studies, in particular for the EMIR/GTC GOYA Survey (Abridged)
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
