CANDELS/GOODS-S、CDFS、ECDFS：正常和X射线检测镓的光度红移
CANDELS/GOODS-S, CDFS, ECDFS: Photometric Redshifts For Normal and for X-Ray-Detected Galaxies
摘要：
我们目前的光度红移和相关的概率分布，所有检测到的源在扩展钱德拉深场南（ECDFS）。这项工作利用了来自宇宙组装近红外深遗产调查（CANDELS）和台湾ECDFS近红外调查（TENIS）的最新数据以及其他数据。我们还重新访问了多波长对应的4 Ms-CDFS和250 ks-ECDFS调查公布的X射线源，找到可靠的对应1207 1259来源（$\sim 96\%$）。用于测光红移的数据包括使用TFIT方法解混的中间带测光，该方法在这项工作中首次使用。光度红移的X射线源对应的是基于一个新的图书馆活动星系核/星系混合模板适合于微弱的X射线人口的CDFS。正常星系和X射线源的测光红移精度分别为0.010和0.014，异常值分别为$4\%$和$5.4\%$。在CANDELS覆盖范围内的结果甚至更好，这一点通过光谱比较和星系对统计都得到了证明。中波段测光，即使是浅的，当与深宽波段测光结合时也是有价值的。为获得最佳精度，模板必须包括发射线。
英文摘要：
We present photometric redshifts and associated probability distributions for all detected sources in the Extended Chandra Deep Field South (ECDFS). The work makes use of the most up-to-date data from the Cosmic Assembly Near-IR Deep Legacy Survey (CANDELS) and the Taiwan ECDFS Near-Infrared Survey (TENIS) in addition to other data. We also revisit multi-wavelength counterparts for published X-ray sources from the 4Ms-CDFS and 250ks-ECDFS surveys, finding reliable counterparts for 1207 out of 1259 sources ($\sim 96\%$). Data used for photometric redshifts include intermediate-band photometry deblended using the TFIT method, which is used for the first time in this work. Photometric redshifts for X-ray source counterparts are based on a new library of AGN/galaxy hybrid templates appropriate for the faint X-ray population in the CDFS. Photometric redshift accuracy for normal galaxies is 0.010 and for X-ray sources is 0.014, and outlier fractions are $4\%$ and $5.4\%$ respectively. The results within the CANDELS coverage area are even better as demonstrated both by spectroscopic comparison and by galaxy-pair statistics. Intermediate-band photometry, even if shallow, is valuable when combined with deep broad-band photometry. For best accuracy, templates must include emission lines.
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