Photometry and Photometric Redshifts of Faint Galaxies in the Hubble Deep Field South NICMOS Field
Photometry and Photometric Redshifts of Faint Galaxies in the Hubble Deep Field South NICMOS Field
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哈勃深场南 NICMOS 场中微弱星系的光度测量和光度红移
DOI：
10.1086/309143
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
R. Puetter
中科院分区：
文献类型：
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作者：
Noriaki Yahata;K. Lanzetta;Hsiao;A. Fernández;S. Pascarelle;A. Yahil;R. Puetter
我们提出了一个目录的测光和测光红移的335个微弱的对象在哈勃深空南近红外相机和多目标摄谱仪（NICMOS）领域。分析基于（1）哈勃太空望远镜（HST）使用NICMOS和F110 W、F160 W和F222 M滤光片获得的红外图像;（2）哈勃太空望远镜使用太空望远镜成像光谱仪获得的光学图像，没有滤光片;（3）欧洲南方天文台甚大望远镜获得的光学图像，有U、B、V、R和I滤光片。测光红移星表的主要用途是对NICMOS F160 W和F222 M图像中发现的暗星系进行调查。测量的灵敏度随位置而显着变化，达到极限深度AB（16000）≈ 28.7，覆盖1.01弧分2至AB（16000）= 27和1.05弧分2至AB（16000）= 26.5。测光红移星表确定了21个星系（占总数的6%）的红移z > 5，8个星系（占总数的2%）的红移z > 10，11个星系（占总数的3%）的最佳拟合光谱类型为E/S 0，其中5个星系（占总数的1%）的红移z > 1。
We present a catalog of photometry and photometric redshifts of 335 faint objects in the Hubble Deep Field South near-infrared camera and multiobject spectrograph (NICMOS) field. The analysis is based on (1) infrared images obtained with the Hubble Space Telescope (HST) using the NICMOS with the F110W, F160W, and F222M filters; (2) an optical image obtained with HST using the Space Telescope Imaging Spectrograph with no filter; and (3) optical images obtained with the European Southern Observatory Very Large Telescope with U, B, V, R, and I filters. The primary utility of the catalog of photometric redshifts is as a survey of faint galaxies detected in the NICMOS F160W and F222M images. The sensitivity of the survey varies significantly with position, reaching a limiting depth of AB(16000) ≈ 28.7 and covering 1.01 arcmin2 to AB(16000) = 27 and 1.05 arcmin2 to AB(16000) = 26.5. The catalog of photometric redshifts identifies 21 galaxies (or 6% of the total) of redshift z > 5, eight galaxies (or 2% of the total) of redshift z > 10, and 11 galaxies (or 3% of the total) of best-fit spectral type E/S0, of which five galaxies (or 1% of the total) are of redshift z > 1.