3D- HST数据发布v3 .0：3D- HST/CANDELS场中UDF和WFC3镶嵌中的极深光谱
3D-HST Data Release v3.0: Extremely Deep Spectra in the UDF and WFC3 Mosaics in the 3D-HST/CANDELS Fields
摘要：
3D-HST是一个248轨道的财政部计划，在四个河外领域（AEGIS，COSMOS，GOODS-South和UDS）提供WFC 3和ACS棱镜光谱，并利用先前在GOODS-North获得的数据进行增强。我们提出了一个新的数据发布的3D-HST调查，版本v3.0。此版本遵循随调查描述文件（Brammer等人，2012）发布的初始v0.5版本。新的v3.0版本包括目前存在的最深的近红外HST棱镜光谱，从哈勃超深场的8-17轨道深度观测中提取。在这个2 'x2'的视场中，可以获得超过250个天体的污染校正的2D和1D光谱以及衍生的红移。这些光谱具有非常好的质量，在许多暗到F140 W =26-27的星系中显示出发射特征，在z~2处的静止星系中显示出吸收特征，在一些活动星系核中也显示出吸收特征。除了这些极深的棱栅数据外，我们还提供了所有五个3D-HST/CANDELS场的减少的WFC 3 F125 W，F140 W和F160 W图像马赛克。
英文摘要：
3D-HST is a 248-orbit Treasury program to provide WFC3 and ACS grism spectroscopy over four extra-galactic fields (AEGIS, COSMOS, GOODS-South, and UDS), augmented with previously obtained data in GOODS-North. We present a new data release of the 3D-HST survey, version v3.0. This release follows the initial v0.5 release that accompanied the survey description paper (Brammer et al. 2012). The new v3.0 release includes the deepest near-IR HST grism spectra currently in existence, extracted from the 8-17 orbit depth observations in the Hubble Ultra Deep Field. Contamination-corrected 2D and 1D spectra, as well as derived redshifts, are made available for >250 objects in this 2'x2'field. The spectra are of extraordinary quality, and show emission features in many galaxies as faint as F140W=26-27, absorption features in quiescent galaxies at z~2, and several active galactic nuclei. In addition to these extremely deep grism data we provide reduced WFC3 F125W, F140W, and F160W image mosaics of all five 3D-HST/CANDELS fields.
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