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首页> 外文期刊>The Astrophysical journal >Photometry and Photometric Redshifts of Faint Galaxies in the Hubble Deep Field South NICMOS Field* **
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Photometry and Photometric Redshifts of Faint Galaxies in the Hubble Deep Field South NICMOS Field* **

机译:哈勃深场南NICMOS场中微弱星系的光度学和光度红移* **

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摘要

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.
机译:我们提供了哈勃深场南近红外摄像机和多目标光谱仪(NICMOS)领域中335个微弱物体的光度学和光度红移的目录。该分析基于(1)使用具有F110W,F160W和F222M滤光片的NICMOS使用哈勃太空望远镜(HST)获得的红外图像; (2)使用不带滤镜的太空望远镜成像光谱仪使用HST获得的光学图像; (3)使用具有U,B,V,R和I滤镜的欧洲南方天文台超大型望远镜获得的光学图像。光度红移目录的主要用途是作为对NICMOS F160W和F222M图像中检测到的微弱星系的调查。调查的敏感性随位置的不同而显着变化,达到AB(16000)≈28.7的极限深度,覆盖范围为1.01 arcmin2至AB(16000)= 27和1.05 arcmin2至AB(16000)= 26.5。光度红移目录确定了红移z> 5的21个星系(占总数的6%),红移z> 10的8个星系(占总数的2%)和11个星系(占总数的3%)。最佳拟合光谱类型E / S0,其中五个星系(或总数的1%)的红移z> 1。

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