The Nancy Grace Roman Space Telescope (Roman) mission is expected to launch in the mid-2020s. Its weak lensing program is designed to enable unprecedented systematics control in photometric measurements, including shear recovery, point-spread function (PSF) correction, and photometric calibration. This will enable exquisite weak lensing science and allow us to adjust to and reliably contribute to the cosmological landscape after the initial years of observations from other concurrent Stage IV dark energy experiments. This potential requires equally careful planning and requirements validation as the mission prepares to enter its construction phase. We present a suite of image simulations based on GalSim that are used to construct a complex, synthetic Roman weak lensing survey that incorporates realistic input galaxies and stars, relevant detector non-idealities, and the current reference five-year Roman survey strategy. We present a first study to empirically validate the existing Roman weak lensing requirements flowdown using a suite of 12 matched image simulations, each representing a different perturbation to the wavefront or image motion model. These are chosen to induce a range of potential static and low- and high-frequency time-dependent PSF model errors. We analyze the measured shapes of galaxies from each of these simulations and compare them to a reference, fiducial simulation to infer the response of the shape measurement to each of these modes in the wavefront model. We then compare this to existing analytic flowdown requirements, and find general agreement between the empirically derived response and that predicted by the analytic model.
The Roman Coronagraph Community Participation Program: Using the Zernike wavefront sensor for a full characterisation of the Roman Space Telescope and the Coronagraph Instrument
Aix Marseille Univ, CNRS, CNES, LAM(艾克斯马赛大学);Space Telescope Science Institute(太空望远镜科学研究所);Laboratoire Lagrange, Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS(拉格朗日实验室,蔚蓝海岸大学,蔚蓝海岸天文台);Jet Propulsion Laboratory, California Institute of Technology(喷气推进实验室,加州理工学院)
Simulation tools for realistic high-order wavefront correction with the Roman Coronagraph
Aix Marseille Université(艾克斯-马赛大学);CNES(法国国家空间研究中心);LAM(拉格朗日天体物理实验室);Jet Propulsion Laboratory(喷气推进实验室);California Institute of Technology(加州理工学院);Université Côte d’Azur(蔚蓝海岸大学);Observatoire de la Côte d’Azur(蔚蓝海岸天文台);Laboratoire Lagrange(拉格朗日实验室);NASA Ames Research Center(美国宇航局埃姆斯研究中心);LIRA(拉格朗日力学与天体物理学实验室);Observatoire de Paris(巴黎天文台);Université PSL(巴黎文理研究大学);Sorbonne Université(索邦大学);Université Paris Cité(巴黎西岱大学);CY Cergy Paris Université(塞吉-巴黎大学);Space Telescope Science Institute(太空望远镜科学研究所);Centre de donnees Astrophysiques de Marseille (CeSAM)(马赛天体物理数据中心)
Enhanced wavefront sensing for the Roman Coronagraph Instrument: Gaussian probes and compact model validation
LIRA, Observatoire de Paris, Université PSL, Sorbonne Université, Université Paris Cité, CY Cergy Paris Université, CNRS(巴黎天文台,PSL大学,索邦大学,巴黎西岱大学,CY塞尔吉巴黎大学,法国国家科学研究中心);Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange(蔚蓝海岸大学,蔚蓝海岸天文台,法国国家科学研究中心);Jet Propulsion Laboratory, California Institute of Technology(喷气推进实验室,加州理工学院);Aix Marseille Univ, CNRS, CNES, LAM(艾克斯马赛大学,法国国家科学研究中心,法国国家空间研究中心);NASA Ames Research Center(美国国家航空航天局阿姆斯特朗飞行研究中心);Department of Astronomy & Astrophysics, University of California, Santa Cruz(加利福尼亚大学圣克鲁兹分校天文学与天体物理学系);Space Telescope Science Institute(太空望远镜科学研究所)
Roman coronagraph simulations of exozodi observations in the presence of wavefront errors
Jet Propulsion Laboratory, California Institute of Technology(加州理工学院喷气推进实验室);Steward Observatory and Department of Astronomy, University of Arizona(亚利桑那大学天文台和天文学系);Massachusetts Institute of Technology(麻省理工学院);IPAC, Caltech(加州理工学院行星科学研究所)
Robust Photometry for Roman High-Latitude Imaging Survey Cosmology Using Roman and Rubin Imaging
The University of Chicago(芝加哥大学);Kavli Institute for Cosmological Physics, University of Chicago(芝加哥大学卡弗里宇宙物理学研究所);McWilliams Center for Cosmology and Astrophysics, Department of Physics, Carnegie Mellon University(卡内基梅隆大学物理学院麦克威廉斯宇宙学与天体物理学中心);Center for Cosmology and AstroParticle Physics (CCAPP), The Ohio State University(俄亥俄州立大学宇宙学与高能粒子物理中心);Department of Astronomy, The Ohio State University(俄亥俄州立大学天文学系);Department of Physics, The Ohio State University(俄亥俄州立大学物理系);Department of Physics and Astronomy, University of Pittsburgh(匹兹堡大学物理与天文学系);Pittsburgh Particle Physics, Astrophysics, and Cosmology Center (PITT PACC), University of Pittsburgh(匹兹堡大学匹兹堡粒子物理、天体物理与宇宙学中心);NASA Goddard Space Flight Center(美国宇航局戈达德太空飞行中心)
Simulating Roman+Gaia Combined Astrometry, Parallaxes, and Proper Motions
David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto(多伦多大学大卫·邓拉普天文学与天体物理系);Space Telescope Science Institute(太空望远镜科学研究所);Center for Astrophysical Sciences, The William H. Miller III Department of Physics & Astronomy, Johns Hopkins University(约翰斯·霍普金斯大学威廉·H·米勒三世天文学与物理学天文科学中心)
Roman CCS White Paper: Tracing stellar mass assembly and emerging quiescence at cosmic noon -- the case for deep imaging with all of Roman's wide filters in the HLTDS
本文论证了在 Roman 望远镜 HLTDS 中使用除 F146 外所有宽滤光片进行深度成像的必要性,以推动河外深场科学并改进 SN Ia 宇宙学系统学。
The Roman Coronagraph Community Participation Program: target database and tools
Sibley School of Mechanical and Aerospace Engineering, Cornell University(康奈尔大学机械与航空航天工程学院);Carl Sagan Institute, Cornell University(康奈尔大学卡尔·萨根研究所);Department of Astronomy, Cornell University(康奈尔大学天文学系);Steward Observatory and the Department of Astronomy, The University of Arizona(亚利桑那大学斯图尔德天文台及天文学系);Tellus1 Scientific, LLC(Tellus1科学有限责任公司);NASA Goddard Space Flight Center(美国宇航局戈达德太空飞行中心);Jet Propulsion Laboratory, California Institute of Technology(加州理工学院喷气推进实验室)
CoronaGraph Instrument Reference stars for Exoplanets (CorGI-REx) I. Preliminary Vetting and Implications for the Roman Coronagraph and Habitable Worlds Observatory
University of Arizona(亚利桑那大学);California Institute of Technology(加州理工学院);NASA Ames Research Center(美国国家航空航天局艾姆斯研究中心);Bay Area Environmental Research Institute(湾区环境研究所);Max Planck Institute for Astronomy(马克斯·普朗克天文学研究所);Cornell University(康奈尔大学);University of Edinburgh(爱丁堡大学);University of Notre Dame(圣母大学);National Astronomical Observatory of Japan(日本国立天文台);University of California, Santa Barbara(加州大学圣塔芭芭拉分校);Northwestern University(西北大学);European Southern Observatory(欧洲南方天文台);University of California, Santa Cruz(加州大学圣克鲁兹分校)
Incorporating Wavefront Error, Wavefront Sensing and Control, and Sensitivities into Exposure Time Calculations for Future Space Missions with the Error Budget Software (EBS)
Space Telescope Science Institute(太空望远镜科学研究所);Jet Propulsion Laboratory, California Institute of Technology(喷气推进实验室,加州理工学院)
A Joint Roman Space Telescope and Rubin Observatory Synthetic Wide-Field Imaging Survey
我们提出并验证了20度$^2$的重叠合成成像调查,代表了南希格雷斯罗马空间望远镜高纬度成像调查(HLIS)的全深度和五年的观察维拉C。Rubin Observatory Legacy Survey of Space and Time(鲁宾天文台时空遗产巡天)这两个综合调查进行了总结,参考现有的300度$^2$的LSST模拟成像的一部分,暗能量科学合作(DESC)数据挑战2(DC 2)。这两次合成巡天观测到的是同一个模拟的DESC DC 2宇宙。对于合成罗马调查,我们首次模拟了全彩色图像以及使用飞行探测器从实验室测量中获得的传感器芯片组件的详细物理特性。模拟成像和所得到的物体光度特性的像素级测量跨越$\sim$ 0.3至2.0 $μ$ m的波长范围。我们还描述了罗马模拟管道的更新,相对于原始DC 2模拟的天体物理对象模拟方式的变化,以及由此产生的模拟罗马数据产品。我们使用这些模拟来探索LSST图像中未识别的混合物的相对比例,发现在LSST图像中识别的$i$波段亮度大于25的对象中有20-30%可以被识别为罗马图像中的多个对象。这些模拟为2020年代后半期开发和验证地基和天基成像数据集的像素级联合分析技术-特别是Roman-LSST联合分析-提供了一个独特的试验场。
The Roman Coronagraph Community Participation Program: pre-launch reference star list and impact of reference star properties on post-processing performance
Steward Observatory and Department of Astronomy, University of Arizona(亚利桑那大学天文台与天文学系);DM Telescopes LLC(DM望远镜有限责任公司);NASA Jet Propulsion Laboratory, California Institute of Technology(加州理工学院NASA喷气推进实验室);Institute for Astronomy, University of Edinburgh, Royal Observatory(爱丁堡大学天文研究所皇家天文台);Centre for Exoplanet Science , University of Edinburgh(爱丁堡大学系外行星科学中心);Université Grenoble Alpes, CNRS, IPAG(格勒诺布尔阿尔卑斯大学、法国国家科学研究中心、IPAG);Max Planck Institute for Astronomy(马克斯·普朗克天文学研究所);Department of Physics and Astronomy, University of Notre Dame(圣母大学物理与天文学系);NASA Exoplanet Science Institute, IPAC, California Institute of Technology(加州理工学院NASA系外行星科学研究所IPAC);European Southern Observatory(欧洲南方天文台);Bay Area Environmental Research Institute(湾区环境研究所);Space Telescope Science Institute(太空望远镜科学研究所);Wyant College of Optical Sciences, The University of Arizona(亚利桑那大学怀特光学科学学院);Subaru Telescope, National Observatory of Japan, National Institutes of Natural Sciences(日本国立自然科学院日本国立天文台昴星团望远镜);Astrobiology Center of NINS(日本国立自然科学院天体生物学中心);Leiden Observatory, Leiden University(莱顿大学莱顿天文台);Northrop Grumman Corporation(诺斯罗普·格鲁曼公司);NASA Ames Research Center(NASA艾姆斯研究中心);National Astronomical Observator(国家天文观测所)
Initial Characterization of Stellar Photometry of Roman images from the OpenUniverse Simulations
Duke University(杜克大学);Lawrence Berkeley National Laboratory(劳伦斯伯克利国家实验室);Baylor University(贝勒大学);University of Maryland Baltimore County(马里兰大学巴尔的摩县分校);NASA GSFC(NASA戈达德太空飞行中心)
JWST telemetry combined with active coronagraphy: raw contrast predictions for exoplanet imaging with the Habitable Worlds Observatory
Space Telescope Science Institute(太空望远镜科学研究所);University of California Santa Cruz(加州大学圣克鲁兹分校);Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange(蔚蓝海岸大学,蔚蓝海岸天文台,法国国家科学研究中心,拉格朗日实验室);Max Planck Institute for Astronomy(马克斯·普朗克天文学研究所)
Linear Image Regridding and Coaddition with Oversampled Point Spread Functions: Lessons from 1D
Center for Cosmology and AstroParticle Physics (CCAPP), The Ohio State University(俄亥俄州立大学宇宙学与粒子物理中心);Department of Physics, The Ohio State University(俄亥俄州立大学物理系)
First high-contrast results on THD2 testbed after infrastructure upgrade
LIRA Observatoire de Paris Université PSL CNRS Sorbonne Université Université Paris Cité(巴黎天文台);NOVA/Leiden University(莱顿大学);Université Côte d’Azur Observatoire de la Côte d’Azur CNRS Laboratoire Lagrange(蔚蓝海岸大学);Space Telescope Science Institute(太空望远镜科学研究所);Department of Astronomy and Astrophysics University of California Santa Cruz(加州大学圣克鲁兹分校天文学与天体物理学系);SRON Space Research Organisation Netherlands(荷兰空间研究所);cosine Remote Sensing B.V(cosine遥感有限公司);Aix Marseille Université CNRS CNES LAM(艾克斯-马赛大学);European Space Agency ESTEC(欧洲空间局)