GOGREEN和GCLASS调查：首次数据发布
The GOGREEN and GCLASS Surveys: First Data Release
摘要：
我们提出了第一个公开的数据发布的GOGREEN和GCLASS调查的星系在稠密的环境中，跨越红移范围$0.8<z<1.5$。调查包括深，多波长测光和广泛的双子座GMOS光谱的星系在26个过密系统范围内的晕质量从小团体最大的集群。这两个项目的目标主要是了解星系的演化如何受到其环境的影响，并确定导致恒星形成淬灭的物理过程。重点是在星系团的整个维里化区域和维里化区域以外的广泛恒星质量范围（$M\gtrsim 2\times 10^{10}~\mathrm{M}_\odot$）内获得无偏光谱。最终的光谱样本包括2771个独特的天体，其中2257个有可靠的光谱红移。其中，1704个红移在$0.8<z<1.5$范围内，近800个被确认为星团成员。成像覆盖整个光学和近红外波长范围，深度与UltraVISTA调查相当，包括\textit{HST} /WFC 3 F160 W（GOGREEN）和F140 W（GCLASS）。该数据发布包括完全缩小的图像和光谱，以及高级数据产品的目录，包括红移，线强度，恒星形成率，恒星质量和静止帧颜色。在这里，我们提出了一个概述的数据，包括光谱的完整性和红移质量的分析。
英文摘要：
We present the first public data release of the GOGREEN and GCLASS surveys of galaxies in dense environments, spanning a redshift range $0.8<z<1.5$. The surveys consist of deep, multiwavelength photometry and extensive Gemini GMOS spectroscopy of galaxies in 26 overdense systems ranging in halo mass from small groups to the most massive clusters. The objective of both projects was primarily to understand how the evolution of galaxies is affected by their environment, and to determine the physical processes that lead to the quenching of star formation. There was an emphasis on obtaining unbiased spectroscopy over a wide stellar mass range ($M\gtrsim 2\times 10^{10}~\mathrm{M}_\odot$), throughout and beyond the cluster virialized regions. The final spectroscopic sample includes 2771 unique objects, of which 2257 have reliable spectroscopic redshifts. Of these, 1704 have redshifts in the range $0.8<z<1.5$, and nearly 800 are confirmed cluster members. Imaging spans the full optical and near-infrared wavelength range, at depths comparable to the UltraVISTA survey, and includes \textit{HST}/WFC3 F160W (GOGREEN) and F140W (GCLASS). This data release includes fully reduced images and spectra, with catalogues of advanced data products including redshifts, line strengths, star formation rates, stellar masses and rest-frame colours. Here we present an overview of the data, including an analysis of the spectroscopic completeness and redshift quality.
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