H$_3^+$ absorption and emission in local U/LIRGs with JWST/NIRSpec: Evidence for high H$_2$ ionization rates
Miguel Pereira-Santaella, Eduardo González-Alfonso, Ismael García-Bernete, Fergus R. Donnan, Miriam G. Santa-Maria, Javier R. Goicoechea, Isabella Lamperti, Mic… 展开作者
Miguel Pereira-Santaella, Eduardo González-Alfonso, Ismael García-Bernete, Fergus R. Donnan, Miriam G. Santa-Maria, Javier R. Goicoechea, Isabella Lamperti, Michele Perna, Dimitra Rigopoulou
备注：
Accepted for publication in A&A Letters. 6 pages, 5 figures. Appendix: 5 pages, 4 figures
We study the 3.4-4.4$μ$m fundamental rovibrational band of H3+, a key tracer of the ionization of the molecular interstellar medium (ISM), in a sample of 12 local (d< 400 Mpc) ultra/luminous infrared galaxies (U/LIRGs) observed with JWST/NIRSpec. The P, Q, and R branches of the band are detected in 13 out of 20 analyzed regions within these U/LIRGs, which increases the number of extragalactic H3+ detections by a factor of 6. For the first time in the ISM, the H3+ band is observed in emission in 3 of these regions. In the remaining 10 regions, the band is seen in absorption. The absorptions are produced toward the 3.4-4.4$μ$m hot dust continuum rather than toward the stellar continuum, indicating that they likely originate in clouds associated with the dust continuum source. The H3+ band is undetected in Seyfert-like U/LIRGs where the mildly obscured X-ray radiation from the AGN might limit the abundance of this molecule. For the detections, the H3+ abundances, N(H3+)/N_H = (0.5-5.5)x10^-7, imply relatively high ionization rates between 3x10^-16 and >4x10^-15 s^-1, which are likely associated with high-energy cosmic rays. In half of the targets the absorptions are blue-shifted by 50-180 km/s, which are lower than the molecular outflow velocities measured using other tracers such as OH 119$μ$m or rotational CO lines. This suggests that H3+ traces gas close to the outflow launching sites before it has been fully accelerated. We used nonlocal thermodynamic equilibrium models to investigate the physical conditions of these clouds. In 7 out of 10 objects, the H3+ excitation is consistent with inelastic collisions with H2 in warm translucent molecular clouds (T_kin ~ 250-500 K and n(H2) ~ 10^(2-3) cm^-3). In three objects, dominant infrared pumping excitation is required to explain the absorptions from the (3,0) and (2,1) levels of H3+ detected for the first time in the ISM.
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。
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）
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）
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）
The Supermassive Black Hole in the Nearby Spiral Galaxy M81: A Robust Mass from JWST/NIRSpec Stellar Dynamics
University of Michigan（密歇根大学）；Vietnam National University – Ho Chi Minh City（越南国立大学胡志明市）；University of Oxford（牛津大学）；International University, Vietnam National University in Ho Chi Minh City（越南国立大学胡志明市国际大学）
Measuring the Central Dark Mass in NGC 4258 with JWST/NIRSpec Stellar Kinematics
University of Michigan（密歇根大学）；University of Science, Vietnam National University in Ho Chi Minh City（越南国立大学胡志明市自然科学大学）；University of Oxford（牛津大学）；International University, Vietnam National University in Ho Chi Minh City（越南国立大学胡志明市国际大学）；International Centre for Interdisciplinary Science and Education（跨学科科学与教育中心）
The AURORA Survey: Tracing Galactic Outflows at $z\gtrsim2.5$ with JWST/NIRSpec NUV Absorption Lines
University of California, Los Angeles（加州大学洛杉矶分校）；University of Kentucky（肯塔基大学）；University of California, Riverside（加州大学河滨分校）；University of Edinburgh（爱丁堡大学）；University College London（伦敦大学学院）；University of California Davis（加州大学戴维斯分校）；Rochester Institute of Technology（罗切斯特理工学院）；University of Florida（佛罗里达大学）；University of Geneva（日内瓦大学）
The JWST Ultramassive Galaxy Sample -- II. Supermassive Black Hole Masses for 8 Extreme Early-Type Galaxies via Jeans Anisotropic Modelling of High-Resolution Integral-Field NIRSpec Stellar Kinematics
University of Oxford（牛津大学）；University of Michigan（密歇根大学）；Space Telescope Science Institute（太空望远镜科学研究所）
本研究利用 JAM 建模 JWST 高分辨率 NIRSpec 恒星运动学，测量 8 个超大质量星系的中心黑洞质量，发现其增长具有高度随机性，并填补了极端质量标度关系的空白。
TDCOSMO XXIV. First spatially resolved kinematics of the lens galaxy obtained using JWST-NIRSpec to improve time-delay cosmography
Kavli Institute for Cosmological Physics, University of Chicago（芝加哥大学卡弗里宇宙物理学研究所）；Center for Astronomy, Space Science and Astrophysics, Independent University, Bangladesh（孟加拉独立大学天文学、空间科学与天体物理中心）；Department of Physics and Astronomy, University of California, Los Angeles（加州大学洛杉矶分校物理与天文系）；Technical University of Munich, TUM School of Natural Sciences, Physics Department（慕尼黑工业大学自然科学院物理系）；Max Planck Institute for Astrophysics（马克斯·普朗克天体物理学研究所）；Space Telescope Science Institute（太空望远镜科学研究所）；Sub-Department of Astrophysics, Department of Physics, University of Oxford（牛津大学物理系天体物理子部门）
MOCSS: Multi-Object Coronagraphy for JWST/NIRSpec Slitless Spectroscopy
University of Minnesota（明尼苏达大学）；Stockholm University（斯德哥尔摩大学）；Space Telescope Science Institute（太空望远镜科学研究所）；University of Texas at Austin（德克萨斯大学奥斯汀分校）；University of Modena & Reggio Emilia（摩德纳与雷焦艾米利亚大学）；University College London（伦敦大学学院）；Williams College（威廉姆斯学院）
Spatial decomposition of Little Red Dots with JWST/NIRSpec IFU into broad-line red cores and narrow-line blue host galaxies
Massachusetts Institute of Technology（麻省理工学院）；University of Hawai‘i（夏威夷大学）；Institute of Science and Technology Austria (ISTA)（奥地利科学技术研究所）；North Carolina State University（北卡罗来纳州立大学）；The University of Texas at Austin（德克萨斯大学奥斯汀分校）；Princeton University（普林斯顿大学）
JADES NIRSpec Initial Data Release for the Hubble Ultra Deep Field: Redshifts and Line Fluxes of Distant Galaxies from the Deepest JWST Cycle 1 NIRSpec Multi-Object Spectroscopy
A Single Line-Emitter Identified in an Unbiased Search with JWST/NIRSpec: Multi-Object Coronagraphy for Slitless Spectroscopy
University of Minnesota（明尼苏达大学）；Stockholm University（斯德哥尔摩大学）；Space Telescope Science Institute（太空望远镜科学研究所）；University of Texas at Austin（德克萨斯大学奥斯汀分校）；University of Modena & Reggio Emilia（摩德纳与雷焦艾米利亚大学）；University College London（伦敦大学学院）；Williams College（威廉姆斯学院）
Blowing Star Formation Away in AGN Hosts (BAH) -- III. Serendipitous discovery of a $z\sim2.9$ star-forming galaxy lensed by the galactic bulge of CGCG 012-070 using JWST NIRSpec
Early Results from GLASS-JWST. XXV. Electron Density in the Interstellar Medium at $0.7\lesssim z\lesssim 9.3$ with NIRSpec High-resolution Spectroscopy
GOALS-JWST: Gas Dynamics and Excitation in NGC7469 revealed by NIRSpec
University of California, Irvine（加州大学尔湾分校）；European Southern Observatory（欧洲南方天文台）；Joint ALMA Observatory（ALMA联合观测站）；California Institute of Technology（加州理工学院）；National Radio Astronomy Observatory（美国国家射电天文台）；University of Virginia（弗吉尼亚大学）；Foundation for Research and Technology-Hellas (FORTH)（希腊研究与技术基金会）；European University Cyprus（塞浦路斯欧洲大学）
JADES: Detecting [OIII]$λ4363$ Emitters and Testing Strong Line Calibrations in the High-$z$ Universe with Ultra-deep JWST/NIRSpec Spectroscopy up to $z \sim 9.5$
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
Source--Line Associations in JWST/NIRSpec Dense-Shutter Spectroscopy
Kavli Institute for Cosmology, University of Cambridge（剑桥大学卡弗里宇宙学研究所）；Cavendish Laboratory, University of Cambridge（剑桥大学卡文迪许实验室）；Department for Astrophysical and Planetary Science, University of Colorado, Boulder（科罗拉多大学博尔德分校天文与行星科学系）；Department of Physics, University of Oxford（牛津大学物理系）；Steward Observatory, University of Arizona（亚利桑那大学斯图尔德天文台）；Department of Astronomy, The University of Texas at Austin（德克萨斯大学奥斯汀分校天文学系）；Cosmic Frontier Center, The University of Texas at Austin（德克萨斯大学奥斯汀分校前沿宇宙中心）；Department of Astronomy and Astrophysics, University of California, Santa Cruz（加州大学圣克鲁兹分校天文与天体物理学系）
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）
Balmer Break Measurements Trace Departures from the Star-Forming Main Sequence at $1<z<4$ with JWST/NIRSpec
University of Illinois Urbana-Champaign（伊利诺伊大学厄巴纳-香槟分校）；Steward Observatory, University of Arizona（亚利桑那大学斯图尔德天文台）；Scuola Normale Superiore（意大利高等师范学院）；Kavli Institute for Cosmology, University of Cambridge（剑桥大学卡弗里宇宙学研究所）；Cavendish Laboratory, University of Cambridge（剑桥大学卡文迪许实验室）
MAGAZ3NE: Spatially Resolved Ages and Chemical Abundances of Ultra-Massive Quiescent Galaxies at z $\sim$ 3.5 using JWST/NIRSpec IFU
York University（约克大学）；University of Toronto（多伦多大学）；Dunlap Institute for Astronomy & Astrophysics, University of Toronto（多伦多大学邓普勒天文学与天体物理研究所）；University of Massachusetts, Amherst（马萨诸塞大学阿默斯特分校）；University of California Davis（加州大学戴维斯分校）；University of Wisconsin-Madison（威斯康星大学麦迪逊分校）；Observatories of the Carnegie Institution for Science（卡内基科学机构天文台）；Princeton University（普林斯顿大学）
The Structure and Evolution of LRDs: Insights from JWST NIRSpec Medium and High Resolution Spectroscopy at $z\sim4$
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）；Chinese Academy of Sciences South America Center for Astronomy（中国科学院南美天文中心）；Key Laboratory of Optical Astronomy, NAOC（中国科学院国家天文台光学天文重点实验室）；Department of Astronomy, School of Physics, Peking University（北京大学物理学院天文学系）
