The JWST Resolved Stellar Populations Early Release Science Program V. DOLPHOT Stellar Photometry for NIRCam and NIRISS
Daniel R. Weisz, Andrew E. Dolphin, Alessandro Savino, Kristen B. W. McQuinn, Max J. B. Newman, Benjamin F. Williams, Nitya Kallivayalil, Jay Anderson, Martha L… 展开作者
Daniel R. Weisz, Andrew E. Dolphin, Alessandro Savino, Kristen B. W. McQuinn, Max J. B. Newman, Benjamin F. Williams, Nitya Kallivayalil, Jay Anderson, Martha L. Boyer, Matteo Correnti, Marla C. Geha, Karin M. Sandstrom, Andrew A. Cole, Jack T. Warfield, Evan D. Skillman, Roger E. Cohen, Rachael Beaton, Alessandro Bressan, Alberto Bolatto, Michael Boylan-Kolchin, Alyson M. Brooks, James S. Bullock, Charlie Conroy, Michael C. Cooper, Julianne J. Dalcanton, Aaron L. Dotter, Tobias K. Fritz, Christopher T. Garling, Mario Gennaro, Karoline M. Gilbert, Leo Girardi, Benjamin D. Johnson, L. Clifton Johnson, Jason Kalirai, Evan N. Kirby, Dustin Lang, Paola Marigo, Hannah Richstein, Edward F. Schlafly, Erik J. Tollerud, Andrew Wetzel
We present NIRCam and NIRISS modules for DOLPHOT, a widely-used crowded field stellar photometry package. We describe details of the modules including pixel masking, astrometric alignment, star finding, photometry, catalog creation, and artificial star tests (ASTs). We tested these modules using NIRCam and NIRISS images of M92 (a Milky Way globular cluster), Draco II (an ultra-faint dwarf galaxy), and WLM (a star-forming dwarf galaxy). DOLPHOT's photometry is highly precise and the color-magnitude diagrams are deeper and have better definition than anticipated during original program design in 2017. The primary systematic uncertainties in DOLPHOT's photometry arise from mismatches in the model and observed point spread functions (PSFs) and aperture corrections, each contributing $\lesssim0.01$ mag to the photometric error budget. Version 1.2 of WebbPSF models, which include charge diffusion and interpixel capacitance effects, significantly reduced PSF-related uncertainties. We also observed minor ($\lesssim0.05$ mag) chip-to-chip variations in NIRCam's zero points, which will be addressed by the JWST flux calibration program. Globular cluster observations are crucial for photometric calibration. Temporal variations in the photometry are generally $\lesssim0.01$ mag, although rare large misalignment events can introduce errors up to 0.08 mag. We provide recommended DOLPHOT parameters, guidelines for photometric reduction, and advice for improved observing strategies. Our ERS DOLPHOT data products are available on MAST, complemented by comprehensive online documentation and tutorials for using DOLPHOT with JWST imaging data.
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
Identifying Red Supergiants in the Local Group Using JWST Photometry. I. NGC 6822, Sextans A, NGC 300, WLM, and IC 1613
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）；School of Physics and Astronomy, Beijing Normal University（北京师范大学物理与天文学院）；Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences（中国科学院国家天文台空间天文与技术重点实验室）；Department of Astronomy, College of Physics and Electronic Engineering, Qilu Normal University（齐鲁师范学院物理与电子工程学院天文学系）
EWOCS-IX: JWST/NIRCam observations of Westerlund 2 - Identification of candidate substellar members
Istituto Nazionale di Astrofisica (INAF) - Osservatorio Astronomico di Palermo（意大利国家天体物理研究所（INAF）- 巴勒莫天文台）；Instituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de Lisboa（里斯本大学科学学院空间科学与天体物理研究所）；SUPA, School of Physics & Astronomy, University of St Andrews（圣安德鲁斯大学物理与天文学学院）；European Southern Observatory（欧洲南方天文台）；The University of Texas at Austin, Department of Astronomy（德克萨斯大学奥斯汀分校天文学系）；Space Telescope Science Institute（太空望远镜科学研究所）；Department of Astronomy, University of Florida（佛罗里达大学天文学系）
CANUCS/Technicolor Data Release 2: A Catalogue of Galaxy Structural Parameters in up to 29 HST+JWST bands and a Multi-Wavelength Exploration of the Galaxy Size-Mass Relation at $0.6 < z \leq 4$
York University（约克大学）；Wellesley College（韦尔斯利学院）；Independent University Bangladesh（孟加拉独立大学）；Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）；DTU-Space, Technical University of Denmark（丹麦技术大学空间科学中心）；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体物理学与天文学研究中心）
A first look at a complete view of spatially resolved star formation at 1<z<1.8 with JWST NGDEEP+FRESCO slitless spectroscopy
Cosmic Dawn Center（宇宙黎明中心）；Max-Planck-Institut für Astronomie（马克斯·普朗克天文学研究所）；Department of Physics and Astronomy, Texas A&M University（德克萨斯农工大学物理与天文系）；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研究所）；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理事会天体生物学中心）；Department of Astronomy, University of Geneva（日内瓦大学天文系）
Filling the Gap in Cluster Evolution: JWST's Glimpse into a Young, Star-Forming Cluster at Cosmic Noon
Space Telescope Science Institute（太空望远镜科学研究所）；Steward Observatory, University of Arizona（亚利桑那大学斯蒂沃德天文台）；AURA for the European Space Agency (ESA)（欧洲航天局（ESA）的AURA）；NSF National Optical-Infrared Astronomy Research Laboratory（美国国家光学红外天文研究实验室）；Department of Astronomy and Astrophysics, University of California, Santa Cruz（加州大学圣克鲁斯分校天体物理学与天文学系）；Department of Astronomy, University of Cape Town（开普敦大学天文学系）；Department of Physics, University of Oxford（牛津大学物理系）；DARK, Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所DARK中心）
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。
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）
