A model-based approach to the spatial and spectral calibration of NIRSpec onboard JWST
Bernhard Dorner, Giovanna Giardino, Pierre Ferruit, Catarina Alves de Oliveira, Stephan M. Birkmann, Torsten Böker, Guido De Marchi, Xavier Gnata, Jess Köhler, … 展开作者
Bernhard Dorner, Giovanna Giardino, Pierre Ferruit, Catarina Alves de Oliveira, Stephan M. Birkmann, Torsten Böker, Guido De Marchi, Xavier Gnata, Jess Köhler, Marco Sirianni, Peter Jakobsen
备注：
17 pages, 11 figures, accepted for publication in A&A
Context: The NIRSpec instrument for the James Webb Space Telescope (JWST) can be operated in multiobject (MOS), long-slit, and integral field (IFU) mode with spectral resolutions from 100 to 2700. Its MOS mode uses about a quarter of a million individually addressable minislits for object selection, covering a field of view of $\sim$9 $\mathrm{arcmin}^2$. Aims: The pipeline used to extract wavelength-calibrated spectra from NIRSpec detector images relies heavily on a model of NIRSpec optical geometry. We demonstrate how dedicated calibration data from a small subset of NIRSpec modes and apertures can be used to optimize this parametric model to the necessary levels of fidelity. Methods: Following an iterative procedure, the initial fiducial values of the model parameters are manually adjusted and then automatically optimized, so that the model predicted location of the images and spectral lines from the fixed slits, the IFU, and a small subset of the MOS apertures matches their measured location in the main optical planes of the instrument. Results: The NIRSpec parametric model is able to reproduce the spatial and spectral position of the input spectra with high fidelity. The intrinsic accuracy (1-sigma, RMS) of the model, as measured from the extracted calibration spectra, is better than 1/10 of a pixel along the spatial direction and better than 1/20 of a resolution element in the spectral direction for all of the grating-based spectral modes. This is fully consistent with the corresponding allocation in the spatial and spectral calibration budgets of NIRSpec.
NASA Goddard Space Flight Center（美国国家航空航天局戈达德太空飞行中心）；Observational Cosmology Laboratory（观测宇宙学实验室）；Center for Research and Exploration in Space Science and Technology（空间科学与技术研究探索中心）
An empirical calibration of the spectral resolution of JWST NIRSpec PRISM
School of Astronomy and Space Science, University of Chinese Academy of Sciences (UCAS)（中国科学院大学天文与空间科学学院）；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空间科学学院前沿天文与天体物理研究所）；Centre for Astrophysics and Supercomputing, Swinburne University of Technology（斯威本科技大学天体物理学与超算中心）；Sydney Institute for Astronomy, School of Physics, The University of Sydney（悉尼大学物理学院悉尼天文学研究所）；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）
Quantifying Spectroscopic Flux Variations Between JWST NIRISS and NIRSpec: Slit Losses in Emission Line Measurements of z$\sim$1-3 Galaxies
University of Melbourne（墨尔本大学）；ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)（三维全天空天体物理学卓越研究中心）；INAF – Osservatorio Astronomico di Padova（意大利国家天体物理研究所帕多瓦天文台）；University of California, Los Angeles（加州大学洛杉矶分校）；Swinburne University of Technology（斯威本科技大学）；University of Ljubljana（卢布尔雅那大学）；University of California, Davis（加州大学戴维斯分校）；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）；Beijing Normal University（北京师范大学）；University of Oxford（牛津大学）；INAF – Osservatorio Astronomico di Roma（意大利国家天体物理研究所罗马天文台）；Institute of Science and Technology Austria (ISTA)（奥地利科学技术研究所）
Fusion of JWST data: Demonstrating practical feasibility
Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse（天体物理学与行星学研究所，图卢兹大学）；CNRS（法国国家科学研究中心）；CNES（法国国家空间研究中心）；Institut Supérieur de l’Aéronautique et de l’Espace ISAE-SUPAERO, Université de Toulouse（高等航空航天学院，图卢兹大学）；Institut de Recherche en Informatique de Toulouse, Université de Toulouse, CNRS, Toulouse INP（图卢兹计算机研究所，图卢兹大学）；Laboratoire d’Informatique Signal et Image de la Côte d’Opale, Université du Littoral Côte d’Opale（海岸信息处理实验室，滨海大学）
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）
JWST COMPASS: Insights into the Systematic Noise Properties of NIRSpec/G395H From a Uniform Reanalysis of Seven Transmission Spectra
University of California, Santa Cruz（加州大学圣克鲁兹分校）；NASA Ames Research Center（美国国家航空航天局艾姆斯研究中心）；Imperial College London（伦敦帝国理工学院）；Space Telescope Science Institute（太空望远镜科学研究所）；Center for Astrophysics, Harvard & Smithsonian（哈佛与史密森尼天体物理中心）；Earth and Planets Laboratory, Carnegie Institution for Science（卡内基科学机构地球与行星实验室）；The Observatories of the Carnegie Institution for Science（卡内基科学机构天文台）
A Next-Generation Exoplanet Atmospheric Retrieval Framework for Transmission Spectroscopy (NEXOTRANS): Comparative Characterization for WASP-39 b Using JWST NIRISS, NIRSpec PRISM, and MIRI Observations
JADES Dark Horse: demonstrating high-multiplex observations with JWST/NIRSpec dense-shutter spectroscopy in the JADES Origins Field
Kavli Institute for Cosmology, University of Cambridge（剑桥大学卡弗里宇宙学研究所）；Cavendish Laboratory - Astrophysics Group, University of Cambridge（剑桥大学卡文迪许实验室天体物理组）；Department for Astrophysical and Planetary Science, University of Colorado, Boulder（科罗拉多大学博尔德分校天体物理学与行星科学系）；Center for Astrophysics | Harvard & Smithsonian（哈佛史密森尼天体物理中心）；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）；European Southern Observatory（欧洲南方天文台）；Steward Observatory, University of Arizona（亚利桑那大学斯图沃德天文台）；Department of Physics, University of Oxford（牛津大学物理系）；Department of Astronomy & Astrophysics, The Pennsylvania State University（宾夕法尼亚州立大学天文与天体物理系）
The Dyn-Atmo Survey: JWST/NIRSpec spectroscopy of dynamical benchmark GJ 758 B
Space Telescope Science Institute（太空望远镜科学研究所）；European Space Agency (ESA)（欧洲空间局）；Amherst College（阿默斯特学院）；American Museum of Natural History（美国自然历史博物馆）；University of Texas at Austin（德克萨斯大学奥斯汀分校）；Smith College（史密斯学院）；Northwestern University（西北大学）
TDCOSMO XXX: Spatially resolved kinematics of the deflectors in time-delay lens systems B1608+656 and SDSSJ1206+4332 from JWST-NIRSpec observation
University of California, Los Angeles（加州大学洛杉矶分校）；University of Chicago（芝加哥大学）；Independent University, Bangladesh（孟加拉独立大学）；University of Oxford（牛津大学）；Technical University of Munich（慕尼黑工业大学）；Max Planck Institute for Astrophysics（马克斯·普朗克天体物理学研究所）
