Outshining in the Spatially Resolved Analysis of a Strongly-Lensed Galaxy at z=6.072 with JWST NIRCam
C. Giménez-Arteaga, S. Fujimoto, F. Valentino, G. B. Brammer, C. A. Mason, F. Rizzo, V. Rusakov, L. Colina, G. Prieto-Lyon, P. A. Oesch, D. Espada, K. E. Heintz… 展开作者
C. Giménez-Arteaga, S. Fujimoto, F. Valentino, G. B. Brammer, C. A. Mason, F. Rizzo, V. Rusakov, L. Colina, G. Prieto-Lyon, P. A. Oesch, D. Espada, K. E. Heintz, K. K. Knudsen, M. Dessauges-Zavadsky, N. Laporte, M. Lee, G. E. Magdis, Y. Ono, Y. Ao, M. Ouchi, K. Kohno, A. M. Koekemoer
备注:
Submitted to A&A; 13 pages. See also the companion papers on arXiv today: Fujimoto+2024 and Valentino+2024
We present JWST/NIRCam observations of a strongly-lensed, multiply-imaged galaxy at $z=6.072$, with magnification factors >~20 across the galaxy. We perform a spatially-resolved analysis of the physical properties at scales of ~200 pc, inferred from SED modelling of 5 NIRCam imaging bands on a pixel-by-pixel basis. We find young stars surrounded by extended older stellar populations. By comparing H$α$+[NII] and [OIII]+H$β$ maps inferred from the image analysis with our additional NIRSpec IFU data, we find that the spatial distribution and strength of the line maps are in agreement with the IFU measurements. We explore different parametric SFH forms with Bagpipes on the spatially-integrated photometry, finding that a double power-law star formation history retrieves the closest value to the spatially-resolved stellar mass estimate, and other SFH forms suffer from the dominant outshining emission from the youngest stars, thus underestimating the stellar mass - up to ~0.5 dex-. On the other hand, the DPL cannot match the IFU measured emission lines. Additionally, the ionizing photon production efficiency may be overestimated in a spatially-integrated approach by ~0.15 dex, when compared to a spatially-resolved analysis. The agreement with the IFU measurements points towards the pixel-by-pixel approach as a way to mitigate the general degeneracy between the flux excess from emission lines and underlying continuum, especially when lacking photometric medium-band coverage and/or IFU observations. This study stresses the importance of studying galaxies as the complex systems that they are, resolving their stellar populations when possible, or using more flexible SFH parameterisations. This can aid our understanding of the early stages of galaxy evolution by addressing the challenge of inferring robust stellar masses and ionizing photon production efficiencies of high redshift galaxies.
There Is More to Outshining: 2D Dust Effects on Stellar Mass Estimates at $3 \leq z < 9$ with JWST in the JADES Field
Centro de Astrobiología (CAB), CSIC-INTA(天体生物学中心);INAF – IASF Milano(意大利国家天体物理研究所米兰分部);Department of Physics, University of Oxford(牛津大学物理系);National Centre for Nuclear Research(国家核研究中心);Aix Marseille Univ. CNRS, CNES, LAM(艾克斯马赛大学);Steward Observatory, University of Arizona(亚利桑那大学斯图尔德天文台);Max-Planck-Institut für extraterrestrische Physik (MPE)(马克斯·普朗克地外物理学研究所)
A Systematic Assessment of Total Stellar Mass Measurements with Spatially Resolved Photometry and Medium Bands at 1 < z < 9: The Impact of Mass-to-Light Variations and Outshining
York University(约克大学);University of Colorado(科罗拉多大学);Columbia University(哥伦比亚大学);Dunlap Institute for Astronomy and Astrophysics(邓拉普天文学与天体物理研究所);National Research Council of Canada, Herzberg Astronomy & Astrophysics Research Centre(加拿大国家研究委员会赫茨伯格天文学与天体物理研究中心)
Birds of a Feather: Resolving Stellar Mass Assembly With JWST/NIRCam in a Pair of Kindred $z \sim 2$ Dusty Star-forming Galaxies Lensed by the PLCK G165.7+67.0 Cluster
JWSTs PEARLS: NIRCam imaging and NIRISS spectroscopy of a $z=3.6$ star-forming galaxy lensed into a near-Einstein Ring by a $z=1.258$ massive elliptical galaxy
Spatially Resolved Physical Properties of Young Star Clusters and Star-forming Clumps in the Brightest z>6 Galaxy, the Strongly Lensed Cosmic Spear at z=6.2
Indiana University(印第安纳大学);The Johns Hopkins University(约翰斯·霍普金斯大学);Space Telescope Science Institute (STScI)(太空望远镜科学研究所);Association of Universities for Research in Astronomy (AURA), Inc.(天体物理研究大学协会);Northwestern University(西北大学)
VENUS: A Strongly Lensed Clumpy Galaxy at $z\sim11-12$ behind the Galaxy Cluster MACS J0257.1-2325
Institute for Cosmic Ray Research, The University of Tokyo(宇宙线研究所,东京大学);Department of Physics, Graduate School of Science, The University of Tokyo(东京大学理学研究科物理学系);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学中心);David A. Dunlap Department of Astronomy and Astrophysics, University of Toronto(多伦多大学戴维·A·邓普天文学与天体物理学系);Dunlap Institute for Astronomy and Astrophysics(邓普天文学与天体物理研究所);National Astronomical Observatory of Japan(日本国立天文台);Department of Astronomical Science, SOKENDAI (The Graduate University for Advanced Studies)(SOKENDAI(高级研究大学院大学)天文学科学系);Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo(东京大学 Kavli宇宙物理数学研究所(WPI))
ALESS--JWST: Dust-driven Morphologies and Hidden Stellar Mass in $z\sim3$ Sub-millimeter Galaxies
International Center for Radio Astronomy Research (ICRAR), The University of Western Australia(西澳大利亚大学国际射电天文研究中心);International Space Center (ISC), The University of Western Australia(西澳大利亚大学国际太空中心);Leiden Observatory, Leiden University(莱顿大学莱登天文台);Centre for Extragalactic Astronomy, Department of Physics, Durham University(杜伦大学物理系河外天文中心);European Space Agency (ESA), ESA Office, Space Telescope Science Institute(欧洲空间局(ESA)欧洲空间局办公室太空望远镜科学研究所);Research School of Astronomy and Astrophysics, Australian National University(澳大利亚国立大学天文学与天体物理学研究学院);Space Telescope Science Institute(太空望远镜科学研究所)
The Koi Pond: A Strongly Lensed Protocluster Core hosting a Diverse Population of DSFGs
Arizona State University(亚利桑那州立大学);Joint ALMA Observatory(ALMA联合天文台);National Astronomical Observatory of Japan(日本国立天文台);European Southern Observatory(欧洲南方天文台);Universidad Diego Portales(迭戈·波特莱斯大学);University of Arizona(亚利桑那大学);Chalmers University of Technology(查尔姆斯理工大学)
Resolving dust and Lyα emission in a lensed galaxy at the epoch of reionization with JWST/CANUCS
University of Ljubljana(卢布尔雅那大学);University of California Davis(加州大学戴维斯分校);Arizona State University(亚利桑那州立大学);University of Groningen(格罗宁根大学);INAF - Osservatorio Astronomico di Roma(意大利国家天体物理研究所罗马天文台);Saint Mary’s University(圣玛丽大学);Space Telescope Science Institute(太空望远镜科学研究所)
Two lensed star candidates at $z\simeq4.8$ behind the galaxy cluster MACS J0647.7+7015
我们报道了在最近的多波段詹姆斯·韦伯太空望远镜(JWST)近红外摄像机观测中,在星系团MACS J0647.7+7015后面发现了两个极度放大的透镜状恒星候选者。候选者出现在先前已知的、横跨临界曲线的$z_{phot}\simeq4.8$脱落巨弧中。候选者位于预期的临界曲线位置附近,但在另一边缺乏清晰的反像,这表明它们可能是正在经历焦散交叉的恒星。我们提出了修订后的透镜模型的集群,包括多成像星系新发现的JWST数据,并使用它们来估计至少$\gtrsim90$和$\gtrsim50$在两个候选人的位置,分别的背景宏观放大率。有了这些值,我们期望两个候选恒星的$10^4-10^5$的有效的、焦散性交叉放大率。这两个候选人的光谱能量分布(SED)匹配以及光谱的B-型恒星的最佳拟合表面温度分别为$\sim10,000$ K和$\sim12,000$ K,我们表明,这样的恒星质量$\gtrsim20$ M $_{\odot}$和$\gtrsim50$ M $_{\odot}$,分别可以成为足够的放大被观察。我们简要地讨论了其他的解释,并得出结论,这些可能是透镜星,但也承认,放大较小的候选人可能是或居住在星团。这些恒星候选者构成了继$z_{phot}\simeq6.2$的埃伦德尔之后,迄今为止第二高红移的例子,进一步建立了利用JWST研究极度放大恒星到高红移的潜力。包括近红外光谱观测在内的计划…
Gravitationally Lensed View of DSFG-1 in PLCK G165.7+67.0: Strong Dust Emission and Spatially Resolved Stellar Population Analysis with JWST and SMA
Chinese Academy of Sciences South America Center for Astronomy (CASSACA), National Astronomical Observatories(NAOC)(中国科学院南美天文中心(CASSACA),国家天文台);School of Astronomy and Space Science, University of Chinese Academy of Sciences(中国科学院大学天文与空间科学学院);Purple Mountain Observatory, Chinese Academy of Sciences(中国科学院紫金山天文台);State Key Laboratory of Radio Astronomy and Technology, Purple Mountain Observatory, Chinese Academy of Sciences(中国科学院紫金山天文台射电天文与技术国家重点实验室);Department of Physics and Astronomy, Chalmers University of Technology(查尔姆斯理工大学物理与天文系);Sorbonne Université, UPMC Paris 6 and CNRS, UMR 7095, Institut d’Astrophysique de Paris(索邦大学,巴黎第六大学及法国国家科学研究中心,UMR 7095,巴黎天文研究所);Department of Astronomy/Steward Observatory, University of Arizona(亚利桑那大学天文学系/斯图尔德天文台)
JWST's PEARLS: A Candidate Massive Binary Star System in a Lensed Galaxy at Redshift 0.94
University of Minnesota(明尼苏达大学);Arizona State University(亚利桑那州立大学);FORTH(希腊研究所);University of Manchester(曼彻斯特大学);University of California, Berkeley(加州大学伯克利分校);University of Arizona(亚利桑那大学);University of Louisville(路易斯维尔大学);Space Telescope Science Institute(太空望远镜科学研究所);Ben-Gurion University of the Negev(内盖夫本-古里安大学);University of Maryland(马里兰大学);New York University Abu Dhabi(纽约大学阿布扎比分校);University of Missouri - Columbia(密苏里大学哥伦比亚分校)
A Cosmic Archipelago of lensed metal-poor galaxies at $z\sim6$
Max-Planck-Institut für Astrophysik(马克斯·普朗克天体物理学研究所);INAF – IASF Milano(意大利国家天体物理研究所米兰天文台与空间物理研究所);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台与空间科学研究所);Space Telescope Science Institute(太空望远镜科学研究所);European Southern Observatory(欧洲南方天文台);School of Earth and Space Exploration, Arizona State University(亚利桑那州立大学地球与空间探索学院);Department of Astronomy, Oskar Klein Centre, Stockholm University(斯德哥尔摩大学奥斯卡·克莱因中心天文学系)
A Natural $\gtrsim 100\times$ Telescope: Discovery of the Strongly Lensed Type II SN 2025mkn at $z=1.37$
Stockholm University(斯德哥尔摩大学);Northwestern University(西北大学);University of North Carolina(北卡罗来纳大学);Liverpool John Moores University(利物浦约翰摩尔斯大学);Max-Planck-Institut für Astrophysik(马克斯·普朗克天体物理研究所);Ludwig-Maximilians-Universität(慕尼黑大学);Excellence Cluster ORIGINS(ORIGINS卓越集群);University of Minnesota(明尼苏达大学);California Institute of Technology(加州理工学院)
Star Formation under a Cosmic Microscope: Highly magnified z = 11 galaxy behind the Bullet Cluster
University of Ljubljana(卢布尔雅那大学);University of California Davis(加州大学戴维斯分校);Dunlap Institute for Astronomy and Astrophysics(邓拉普天文与天体物理研究所);Kapteyn Astronomical Institute, University of Groningen(格罗宁根大学卡普坦天文研究所);Ohio University(俄亥俄大学);University of Florida(佛罗里达大学);Gemini Observatory(吉米尼天文台);NASA/Goddard Space Flight Center(美国国家航空航天局戈达德太空飞行中心);Wellesley College(韦尔斯利学院);Saint Mary's University(圣玛丽大学);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);York University(约克大学);IFPU - Institute for Fundamental Physics of the Universe(宇宙基础物理研究所)
LEGGOS I: The JWST LEGGOS Survey -- LEnsing and Galaxy Growth: Observing Substructures -- Unpacks the Nature of Clumpy Star Formation and Quenching in Gravitationally Lensed Galaxies beyond Cosmic Noon
University of Washington(华盛顿大学);University of Pittsburgh(匹兹堡大学);University of Arizona(亚利桑那大学);Eureka Scientific(尤里卡科学公司);University of Cincinnati(辛辛那提大学);NASA Goddard Space Flight Center(美国国家航空航天局戈达德太空飞行中心)
A Super-Eddington, Lensing-Magnified Quasar at $z=5.07$ observed with JWST
Massachusetts Institute of Technology(麻省理工学院);University of Arizona(亚利桑那大学);MIT Kavli Institute for Astrophysics and Space Research(麻省理工学院卡弗里天体物理与空间研究所);University of Michigan(密歇根大学)
SCALES. II. The Internal Composition of Giant Star-Forming Clumps at $z = 1 - 4$
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);Kavli IPMU (WPI), UTIAS, The University of Tokyo(东京大学Kavli宇宙起源研究中心(WPI)/UTIAS);Univ Lyon, Univ Lyon1, ENS de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574(里昂大学/里昂第一大学/里昂高等师范学院/CNRS/里昂天体物理研究中心);Department of Astronomy, School of Physics, Peking University(北京大学物理学院天文学系);Département d’Astronomie, Université de Genève(日内瓦大学天文学系);Max-Planck-Institut fur extraterrestrische Physik(马克斯·普朗克地外物理研究所);Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM(巴黎萨克雷大学/巴黎西岱大学/法国原子能和替代能源委员会/CNRS/AIM);Department of Astronomy, School of Science, The University of Tokyo(东京大学理学部天文学系)
MEGATRON: Dwarf Galaxy Quenching in the Epoch of Reionization
University of Sussex(萨塞克斯大学);DISCnet Centre for Doctoral Training, University of Sussex(萨塞克斯大学 DISCnet 博士培训中心);University of Bath(巴斯大学);Kavli Institute for Cosmological Physics, University of Chicago(芝加哥大学卡弗里宇宙物理学研究所);Institut d’Astrophysique de Paris, Sorbonne Université, CNRS(巴黎天体物理研究所,索邦大学,法国国家科学研究中心);University of Oxford(牛津大学)
GLIMPSE: An ultra-faint $\simeq$ 10$^{5}$ $M_{\odot}$ Pop III Galaxy Candidate and First Constraints on the Pop III UV Luminosity Function at $z\simeq6-7$
JWST and ALMA Multiple-Line Study in and around a Galaxy at $z=8.496$: Optical to FIR Line Ratios and the Onset of an Outflow Promoting Ionizing Photon Escape
GA-NIFS view of LAP1: Assembly of Pop~III stellar clusters during EoR
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 of Physics and Astronomy, University College London(伦敦大学学院物理与天文系);Scuola Normale Superiore(比萨高等师范学院);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空间科学与天体物理观测台);Instituto Nacional de Astrofísica, Óptica y Electrónica(墨西哥国家天体物理学、光学和电子研究所);Institute of Astronomy, University of Cambridge(剑桥大学天文学研究所);Facultad de Astronomía y Geofísica, Universidad de La Plata(拉普拉塔大学天文与地球物理学院);Max-Planck-Institut für extraterrestrische Physik(马克斯·普朗克地外物理研究所);Centro de Astrobiología (CAB), CSIC–INTA(西班牙国家技术研究与应用中心-国家航空太空技术研究所天体生物学中心);INAF — Osservatorio Astrofisico di Arcetri(意大利国家天体物理研究所阿切特里天文台)
LEGGOS II: A Strong Lens Model and Source-Plane Projection of the Clumpy Star-Forming Galaxy SGASJ111020.0+645950.8 at z=2.48
University of Michigan(密歇根大学);NASA Goddard Space Flight Center(美国宇航局戈达德太空飞行中心);University of Maryland(马里兰大学);Center for Research and Exploration in Space Science and Technology, NASA/GSFC(NASA/戈达德太空飞行中心空间科学与技术研究探索中心);University of Cincinnati(辛辛那提大学);Steward Observatory, University of Arizona(亚利桑那大学斯图尔德天文台);Eureka Scientific(尤里卡科学公司);University of Washington(华盛顿大学)