标题： 博格-詹姆斯韦伯太空望远镜调查：项目概述及纯并行观测中发光再电离时代星系的首次确认 显示英文标题

标题： The BoRG-JWST Survey: Program Overview and First Confirmations of Luminous Reionization-Era Galaxies from Pure-Parallel Observations

摘要： 我们介绍了BoRG-JWST调查，这是两个JWST第一周期项目的结合，旨在通过NIRSpec光谱学对22个独立视线方向上来自哈勃/WFC3纯并行观测的代表性、紫外线明亮的$7<z<10$星系候选体进行观测。 通过低分辨率棱镜观测，我们确认了19个主要目标中的10个具有高$z$特性，其余的显然显示出是$z\sim1-3$干扰者、棕矮星或得出不确定的结果。 从MSA观测中，我们在$z>5$处确认了另外9个填充源，突显了在单个WFC3点源中高红移星系的丰富数量。 该主要样本的绝对星等范围为$-20.4<M_{\rm UV}<-22.4$ mag，并具有 UV 连续谱斜率从$\beta\simeq-2.5$到$-2.0$，代表目前已知最明亮的$z>7$源，与在$z>10$处最明亮的源相当。 在整个样本中都发现了明显的 [O III]+H$\beta$线，而源的堆叠显示存在大量其他静光学线和额外的静紫外 C III]1909 Å 发射。 尽管它们的光度较高，但基于对宽线发射的搜索，低分辨率光谱中没有显示出类型1 AGN活动的证据。 最后，我们发布了来自填充MSA观测的188个确认的$0.5\lesssim z\lesssim5.0$源的光谱数据，突显了该调查的遗产价值，并作为与深场观测比较的代表性基准。 显示英文摘要

摘要： We present the BoRG-JWST survey, a combination of two JWST Cycle 1 programs aimed at obtaining NIRSpec spectroscopy of representative, UV-bright $7<z<10$ galaxy candidates across 22 independent sight lines selected from Hubble/WFC3 pure-parallel observations. We confirm the high-$z$ nature of 10 out of 19 observed primary targets through low-resolution prism observations, with the rest revealing themselves unsurprisingly to be $z\sim1-3$ interlopers, brown dwarfs, or yielding inconclusive results. From the MSA observations, we confirm an additional 9 filler sources at $z>5$, highlighting the large abundance of high-redshift galaxies even in individual WFC3 pointings. The primary sample span an absolute magnitude range $-20.4<M_{\rm UV}<-22.4$ mag and harbour UV continuum slopes of $\beta\simeq-2.5$ to $-2.0$, representing some of the most luminous $z>7$ sources currently known and comparable to the brightest sources at $z>10$. Prominent [O III]+H$\beta$ lines are found across the full sample, while a stack of sources reveals a plethora of other rest-optical lines and additional rest-UV C III]1909 \r{A} emission. Despite their luminosities, none of the low-resolution spectra display evidence for Type 1 AGN activity based on a search for broad-line emission. Lastly, we present a spectroscopic data release of 188 confirmed $0.5\lesssim z\lesssim5.0$ sources from filler MSA observations, highlighting the legacy value of the survey and a representative benchmark for comparisons to deep field observations.