Understanding the role of high-redshift protoclusters in cosmic reionization is essential to unveiling the early stages of structure formation. Using deep imaging and spectroscopy from the James Webb Space Telescope (JWST) JADES Deep Survey in GOODS-South, we identify two prominent protoclusters at z>7 and investigate their environmental properties in comparison to field galaxies. Protocluster members exhibit systematically higher ionizing photon production efficiency ($ξ_{\text{ion}}$) and inflated [OIII]/H$β$ ratios at fixed UV magnitude or stellar mass, likely driven by young, metal-poor stellar populations and intense star formation. Despite these properties, their Ly$α$ emission is weak or absent, and they show high proximate neutral hydrogen column densities, suggesting insufficient ionizing output to maintain ionized bubbles. We also find that a strong Ly$α$ emitter (LAE), JADES-GS-z7-LA, may lie within the same ionized region as one protocluster. Although their Lyman continuum escape fractions ($f_{\mathrm{esc}} \sim 0.1$) are comparable to those of LAEs, individual protocluster galaxies are faint ($M_{\mathrm{UV}} > -19$) and low-mass ($\log(M_*/M_\odot) \sim 8.5$). The enhanced number density within protoclusters boosts the local UV luminosity density by nearly 1 dex. The surrounding gas remains largely neutral, suggesting that reionization was highly patchy and modulated by environment. The protocluster galaxies likely host ionization-bounded nebulae with holes, suppressing Ly$α$ visibility, in contrast to field galaxies that are more consistent with density-bounded nebulae.
SILVERRUSH. VII. Subaru/HSC Identifications of 42 Protocluster Candidates at z~6-7 with the Spectroscopic Redshifts up to z=6.574: Implications for Cosmic Reionization
Breaking Through the Cosmic Fog: JWST/NIRSpec Constraints on Ionizing Photon Escape in Reionization-Era Galaxies
University of Geneva（日内瓦大学）；Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）；Cosmic Dawn Center (DAWN)（宇宙黎明中心（DAWN））；Max Planck Institut für Astrophysik（马克斯·普朗克天体物理研究所）；Max-Planck-Institut für Astronomie（马克斯·普朗克天文学研究所）；The University of Texas at Austin（德克萨斯大学奥斯汀分校）
Galaxy Protoclusters as Drivers of Cosmic Reionization: II. Te-Based Metallicities of Lyman-α Emitters
Pontificia Universidad Católica de Chile（智利天主教 Pontificia 大学）；Las Campanas Observatory, Carnegie Science（拉斯坎帕纳斯天文台，卡内基科学）；University of California Santa Barbara（加州大学圣塔芭芭拉分校）；Instituto de Astrofísica de la Facultad de Ingeniería y Ciencias, Universidad Diego Portales（迭戈·波特莱斯大学工程与科学学院天体物理研究所）；Texas A&M University（德克萨斯农工大学）；George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University（德克萨斯农工大学乔治·P和辛西娅·伍兹基础物理与天文学研究所）；Caltech/IPAC（加州理工学院/IPAC）；Institute for Cosmic Ray Research, The University of Tokyo（东京大学宇宙射线研究所）；Space Telescope Science Institute（太空望远镜科学研究所）
Galaxy Protoclusters as Drivers of Cosmic Reionization: I. Bubble Overlap at Redshift z ~ 7 in LAGER-z7OD1
University of California Santa Barbara（加州大学圣塔芭芭拉分校）；Goddard Space Flight Center（戈达德太空飞行中心）；The University of Tokyo（东京大学）；Space Telescope Science Institute（太空望远镜科学研究所）；MIT Kavli Institute for Astrophysics and Space Research（麻省理工学院卡弗里天体物理学与空间研究研究所）；CNRS, Institut d'Astrophysique de Paris（法国国家科学研究中心，巴黎天体物理研究所）；Chinese Academy of Sciences（中国科学院）；University of Science and Technology of China（中国科学技术大学）
Direct T_e-based Metallicities of z=2-9 Galaxies with JWST/NIRSpec: Empirical Metallicity Calibrations Applicable from Reionization to Cosmic Noon
University of Kentucky（肯塔基大学）；University of California, Davis（加州大学戴维斯分校）；University of California, Los Angeles（加州大学洛杉矶分校）；University of Arizona（亚利桑那大学）；University of California, Riverside（加州大学河滨分校）；Cosmic Dawn Center (DAWN)（宇宙黎明中心）；Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）
Reionization driven by the few: the ionizing budget of galaxies at z=5-10 from JWST/NIRSpec
University of Geneva（日内瓦大学）；Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）；Department of Astronomy, The University of Texas at Austin（德克萨斯大学奥斯汀分校天文学系）；Universidad de Chile（智利大学）
NIRSpec View of the Appearance and Evolution of Balmer Breaks and the Transition from Bursty to Smooth Star Formation Histories from Deep Within the Epoch of Reionization to Cosmic Noon
Reionization and the ISM/Stellar Origins with JWST and ALMA (RIOJA): The core of the highest redshift galaxy overdensity at $z = 7.88$ confirmed by NIRSpec/JWST
Stacking PANCAKEZ: sPectroscopic Analysis with NirspeC stAcKs in the Epoch of reioniZation. Weak ISM Absorption and Implications for Ionizing Photon Escape at $z\sim7$
IRAC-Excess Galaxies in the NIRSpec Wide Survey: physical properties of bright EELGs at $z\sim7$ and implications for Reionization
Liverpool John Moores University（利物浦约翰摩尔斯大学）；Cosmic Dawn Center (DAWN)（宇宙黎明中心）；University of Copenhagen（哥本哈根大学）；Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）；Max-Planck-Institut für Astronomie（马克斯·普朗克天文学研究所）；University of Wisconsin-Madison（威斯康星大学麦迪逊分校）；University of Oxford（牛津大学）；NRC Herzberg（赫茨伯格国家研究委员会）
Probing Direct Contributions of Galaxies and AGN to Cosmic Reionization in a Quasar Field J0226+0302 with JWST NIRCam and NIRSpec
University of Michigan（密歇根大学）；Steward Observatory, University of Arizona（亚利桑那大学斯图尔德天文台）；Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所黎明中心）；Kavli IPMU (WPI), UTIAS, The University of Tokyo（东京大学宇宙起源研究核心理论研究中心）；Center for Data-Driven Discovery, Kavli IPMU (WPI), UTIAS, The University of Tokyo（东京大学宇宙起源研究核心理论中心数据驱动发现中心）；Department of Physics & Astronomy, University of California, Riverside（加州大学河滨分校物理与天文学系）
Simulating and interpreting deep observations in the Hubble Ultra Deep Field with the JWST/NIRSpec low-resolution 'prism'
詹姆斯·韦伯太空望远镜（JWST）将能够探测星系中的光发射线，其亮度范围很广，红移z>10。通过这些观测，对星系的关键特性（如恒星形成率和金属丰度）的测量将提供独特的见解，例如，来自恒星和活动星系核（AGN）的反馈在调节星系演化中的作用，AGN和宿主星系的共同演化，恒星形成星系的“主序列”的物理起源以及恒星形成星系对宇宙再电离的贡献。我们提出了一个原始的框架来模拟和分析观测与近红外光谱仪（NIRSpec）上JWST。我们使用的BEAGLE工具（贝叶斯分析的GalerosEds）建立一个半经验的星系光谱目录的基础上的光度光谱能量分布（SED）的辍学星系在哈勃超深场（HUDF）。我们证明，由此产生的星系光谱目录满足不同类型的高红移星系的观测约束，并使用它作为输入，以模拟NIRSpec/棱镜（R~100）的观测。我们发现，一个单一的“深”（~100 ks）的近红外光谱/棱镜指向HUDF将使S/N>3检测的多个光学发射线在~30（~60）星系在z>6（z~4-6）下降到m_F160 W <30 AB MAG。这样的观测将允许测量星系恒星形成率，电离参数和气相金属丰度的1.5倍，质光比在2倍之内，星系年龄在3倍之内，V波段衰减光学深度的精度为0.3。
The spectral evolution of the first Galaxies. III. Simulated James Webb Space Telescope spectra of reionization-epoch galaxies with Lyman continuum leakage
Lyman continuum leakage versus quenching with the James Webb Space Telescope: The spectral signatures of quenched star formation activity in reionization-epoch galaxies
RIOJA. Environmental Effects on Stellar Populations and Ionized Gas in a Protocluster at $z=7.88$
University of Tsukuba（筑波大学）；Tsukuba Institute for Advanced Research (TIAR), University of Tsukuba（筑波大学先进研究院）；Tomonaga Center for the History of the Universe (TCHoU), Faculty of Pure and Applied Sciences, University of Tsukuba（筑波大学纯应用科学学部朝永中心宇宙历史研究中心）；Centro de Astrobiología (CAB), CSIC-INTA（西班牙国家航空航天技术研究所/西班牙高等科学研究委员会天体生物学中心）；Waseda Research Institute for Science and Engineering, Faculty of Science and Engineering, Waseda University（早稻田大学理工学部的理工学研究科）；Department of Pure and Applied Physics, School of Advanced Science and Engineering, Faculty of Science and Engineering, Waseda University（早稻田大学理工学部理工学研究科纯应用物理系）
The BoRG-$JWST$ Survey: Abundance and Mass-to-light Ratio of Luminous $z=7-9$ Galaxies from Independent Sight Lines with NIRSpec
University of California, Los Angeles（加州大学洛杉矶分校）；The University of Texas at Austin（德克萨斯大学奥斯汀分校）；University of Geneva（日内瓦大学）；California Institute of Technology（加州理工学院）；National Astronomical Research Institute of Thailand (NARIT)（泰国国家天文研究所）；Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）；Max Planck Institut für Astronomie（马克斯·普朗克天体物理研究所）；University of Melbourne（墨尔本大学）
Confirmation and Refutation of Lyman Continuum Leakers at $z\sim3$ with JWST NIRSpec/IFU
University of Chinese Academy of Sciences (UCAS)（中国科学院大学）；National Astronomical Observatories, Chinese Academy of Sciences（中国科学院国家天文台）；Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University（北京师范大学天文与前沿科学研究院）；Steward Observatory, University of Arizona（亚利桑那大学斯图尔德天文台）
Probing the Cosmic Reionization History with JWST: Gunn-Peterson and Ly$α$ Damping Wing Absorption at $4.5 < z < 13$
The University of Tokyo（东京大学）；National Astronomical Observatory of Japan（日本国立天文台）；Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo（东京大学宇宙物理数学研究所（WPI））
Deep X-ray View of a Distant Protocluster Anchored by a Quasar at $z=6.63$: No Evidence for Enhanced X-ray AGN Activity
Peking University（北京大学）；Kavli Institute for Astronomy and Astrophysics, Peking University（北京大学科维理天文与天体物理研究所）；Nanjing University（南京大学）；University of Michigan（密歇根大学）
A Comprehensive Study on Galaxies at z~9-16 Found in the Early JWST Data: UV Luminosity Functions and Cosmic Star-Formation History at the Pre-Reionization Epoch
Chasing Cosmic Reionization: An Extremely Faint Highly Magnified Source at $z=5.66$ with high $ξ_{\rm ion}$
University of California, Los Angeles（加州大学洛杉矶分校）；INAF - OAS, Osservatorio di Astrofisica e Scienza dello Spazio di Bologna（意大利国家天体物理研究所-博洛尼亚天文与空间科学观测站）；Università degli Studi di Ferrara（费拉拉大学）；Università degli Studi di Milano（米兰大学）
REBELS-IFU: Spatially Resolved Ionizing Photon Production Efficiencies of 12 Bright Galaxies in the Epoch of Reionization
Universitat de València（瓦伦西亚大学）；Instituto de Física de Cantabria（坎塔布里亚物理研究所）；Academia Sinica（中央研究院）；Universidad Diego Portales（迭戈·波特莱斯大学）；Leiden University（莱顿大学）；The University of Manchester（曼彻斯特大学）；University of Western Australia（西澳大利亚大学）
JWST & the Waz Arc I: Spatially Resolving the Physical Conditions within a Post-Starburst Galaxy at Redshift 5 with NIRSpec IFS
NASA Goddard Space Flight Center（美国宇航局戈达德太空飞行中心）；Center for Research and Exploration in Space Science and Technology, NASA/GSFC（NASA/GSFC空间科学与技术研究探索中心）；University of Washington（华盛顿大学）；International Space Science Institute（国际空间科学研究所）；Department of Astronomy, University of Michigan（密歇根大学天文学系）；Department of Astronomy and Astrophysics, University of Chicago（芝加哥大学天文与天体物理系）；Department of Physics and Astronomy, University of Pittsburgh（匹兹堡大学物理与天文学系）；STAR Institute（STAR研究所）；The Pennsylvania State University（宾夕法尼亚州立大学）；Institute for Gravitation and the Cosmos, The Pennsylvania State University（宾夕法尼亚州立大学引力与宇宙研究院）；PITT PACC, University of Pittsburgh（匹兹堡大学PITT PACC）；Kavli Institute for Cosmological Physics, University of Chicago（芝加哥大学卡弗里宇宙物理学研究所）；Department of Physics, University of Cincinnati（辛辛那提大学物理系）；Stockholm University（斯德哥尔摩大学）；University of Oslo（奥斯陆大学）；University of Texas at Austin（得克萨斯大学奥斯汀分校）；University of Maryland, College Park（马里兰大学帕克分校）；University of California, Berkeley（加州大学伯克利分校）
