The spectral evolution of the first Galaxies. III. Simulated James Webb Space Telescope spectra of reionization-epoch galaxies with Lyman continuum leakage
E. Zackrisson, C. Binggeli, K. Finlator, N. Y. Gnedin, J. -P. Paardekooper, I. Shimizu, A. K. Inoue, H. Jensen, G. Micheva, S. Khochfar, C. Dalla Vecchia
Using four different suites of cosmological simulations, we generate synthetic spectra for galaxies with different Lyman continuum escape fractions (fesc) at redshifts z=7-9, in the rest-frame wavelength range relevant for the James Webb Space Telescope (JWST) NIRSpec instrument. By investigating the effects of realistic star formation histories and metallicity distributions on the EW(Hb)-beta diagram (previously proposed as a tool for identifying galaxies with very high fesc), we find that neither of these effects are likely to jeopardize the identification of galaxies with extreme Lyman continuum leakage. Based on our models, we expect essentially all z=7-9 galaxies that exhibit rest-frame EW(Hb)< 30 Å to have fesc>0.5. Incorrect assumptions concerning the ionizing fluxes of stellar populations or the dust properties of z>6 galaxies can in principle bias the selection, but substantial model deficiencies of this type will at the same time reveal themselves as an offset between the observed and simulated distribution of z>6 galaxies in the EW(Hb)-beta diagram. Such offsets would thereby allow JWST/NIRSpec measurements of these observables to serve as input for further model refinement.
The GLASS James Webb Space Telescope Early Release Science Program. I. Survey Design and Release Plans
GLASS James Webb空间望远镜早期释放科学（以下简称GLASS-JWST-ERS）计划将获得并公开提供ERS活动的最深河外数据。它主要是为了解决两个关键的科学问题，即“什么来源电离宇宙和什么时候？重子如何在星系中循环？“，同时也使各种各样的第一眼科学调查成为可能。在主模式下，它将获得由前景哈勃前沿场星系团Abell 2744透镜的星系的NIRISS和NIRSpec光谱。与此同时，它将使用NIRCam来观察两个偏离星团中心的视场，其中透镜放大率可以忽略不计，因此可以有效地将其视为空白视场。为了让社区做好准备，以获得这一前所未有的数据，我们描述了科学原理，调查设计（包括目标选择和观测设置），并提出了预期灵敏度的预调试估计。此外，我们还介绍了计划公开发布的高级别数据产品，供更广泛的天文学界使用。
Warm molecular Hydrogen at high redshift with the James Webb Space Telescope
星系的形成受到引力坍缩、星系合并以及活动星系核和恒星形成相关反馈之间复杂相互作用的调控。这些过程释放的能量必须消散，使气体冷却、凝结并形成恒星。因此，气体如何冷却是理解星系形成的关键。\textit{Spitzer Space Telescope}红外光谱显示了一个星系的人口与弱的恒星形成和异常强大的H $_2$线发射。这是湍流耗散的特征，由大规模机械能注入维持。多相星际介质的冷却与H $_2$谱线的发射有关。这些结果对我们理解恒星形成的规律、反馈和星系形成的能量学有着深远的影响。在高红移湍流星系中H $_2$谱线能被强烈增强这一事实对于揭示H $_2$在星系聚集时代作为冷却剂的作用的\textit{James Webb Space Telescope}观测具有重要意义。
Lyman continuum leakage versus quenching with the James Webb Space Telescope: The spectral signatures of quenched star formation activity in reionization-epoch galaxies
New Measurements of Distances to Galaxies in the NGC 1052 Field with the Hubble and James Webb Space Telescopes: Testing the Bullet-Dwarf Origin of the Trail
University of California Santa Cruz（加州大学圣克鲁兹分校）；Space Telescope Science Institute（太空望远镜科学研究所）；San José State University（圣何塞州立大学）；Yale University（耶鲁大学）
A Mysteriously Tight H$α$-[O III] Correlation and Non-Case B Balmer Decrements Revealed by the Spectra from the James Webb Space Telescope NIRSpec Instrument
Characterization of Population III Stars with Stellar Atmosphere and Evolutionary Modeling and Predictions of their Observability with the James Webb Space Telescope
A dust-free hierarchically nested supermassive-star model for James Webb Space Telescope Little Red Dots
Universitat Politècnica de València（瓦伦西亚理工大学）；Max Planck Institute for Extraterrestrial Physics（马克斯·普朗克地外物理研究所）；Kavli Institute for Astronomy and Astrophysics at Peking University（北京大学科维理天文与天体物理研究所）
Extragalactic Multi-Band Exploration of Red Supergiants (EMBERS): Pipeline, Source Classification, and Bolometric Properties of 101,219 Red Supergiants from James Webb Space Telescope Imaging
Northwestern University（西北大学）；University of Toronto（多伦多大学）；University of Florida（佛罗里达大学）；INAF（意大利国家天体物理研究所）
The Large Magellanic Cloud through the lens of the James Webb Space Telescope: Binaries and the mass function in the galaxy's outskirts
Univ. di Padova（帕多瓦大学）；INAF - Osservatorio Astronomico di Padova（意大利国家天体物理研究所帕多瓦天文台）；Australian National University（澳大利亚国立大学）；American University of Sharjah（沙迦美国大学）；Space Telescope Science Institute（太空望远镜科学研究所）；INAF – 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体物理与空间科学观测站）；Yonsei University（延世大学）
Searching for the elusive CH2+ with the James Webb Space Telescope. Another carbocation to constrain astrochemical networks
Instituto de Física Fundamental (CSIC)（基础物理研究所（西班牙高等科学研究委员会））；Institut d’Astrophysique Spatiale, Université Paris-Saclay, CNRS（巴黎萨克雷大学空间天体物理学研究所（法国国家科学研究中心））；Institut des Sciences Moléculaires d’Orsay, UMR8214, CNRS, Université Paris-Saclay（奥赛分子科学学院（法国国家科学研究中心，巴黎萨克雷大学））；Departamento de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca（萨拉曼卡大学化学学院物理化学系）；Department of Physics & Astronomy, The University of Western Ontario（韦仕敦大学物理与天文系）；Institute for Earth and Space Exploration, The University of Western Ontario（韦仕敦大学地球与太空探索研究所）
Galaxy Proximate Damped Lyman-Alpha Systems and HI Reionization Topology in TECHNICOLOR DAWN
New Mexico State University（新墨西哥州立大学）；Cosmic Dawn Center (DAWN)（宇宙黎明中心（DAWN））；Niels Bohr Institute, University of Copenhagen / DTU-Space Technical University of Denmark（哥本哈根大学尼尔斯·玻尔研究所/丹麦技术大学空间研究所）
Towards Reconciling Reionization with JWST: The Role of Bright Galaxies and Strong Feedback
University of Maryland, College Park（马里兰大学帕克分校）；Space Telescope Science Institute（太空望远镜科学研究所）；University of Zurich（苏黎世大学）；University of Edinburgh（爱丁堡大学）；University of the Western Cape（西开普大学）；New Mexico State University（新墨西哥州立大学）；University of Copenhagen（哥本哈根大学）；Technical University of Denmark（丹麦技术大学）
PEARLS: 21 Transients Found in the Three-Epoch NIRCam Observations in the Continuous Viewing Zone of the James Webb Space Telescope
University of Missouri（密苏里大学）；University of Massachusetts, Amherst（马萨诸塞大学阿默斯特分校）；Texas A. & M. University（德克萨斯农工大学）；University of Arizona（亚利桑那大学）；Oklahoma State University（俄克拉荷马州立大学）；Space Telescope Science Institute（太空望远镜科学研究所）；The Ohio State University（俄亥俄州立大学）
