The Decadal Survey on Astronomy and Astrophysics 2020 (Astro2020) has recommended that NASA realize a large IR/O/UV space telescope optimized for high-contrast imaging and spectroscopy of ~25 exo-Earths and transformative general astrophysics. The NASA Exoplanet Exploration Program (ExEP) has subsequently released a list of 164 nearby (d<25 pc) targets deemed the most accessible to survey for potentially habitable exoplanets with the Habitable Worlds Observatory (HWO). We present a catalog of system properties for the 164 ExEP targets, including 1744 abundance measurements for 14 elements from the Hypatia Catalog and 924 photometry measurements spanning from 151.6 nm to 22 μm in the GALEX, Strömgren, Tycho, Gaia, 2MASS, and WISE bandpasses. We independently derive stellar properties for these systems by modeling their spectral energy distributions with Bayesian model averaging. Additionally, by consulting the literature, we identify TESS flare rates for 46 stars, optical variability for 78 stars, and X-ray emission for 46 stars in our sample. We discuss our catalog in the context of planet habitability and draw attention to key gaps in our knowledge where precursor science can help to inform HWO mission design trade studies in the near future. Notably, only 33 of the 164 stars in our sample have reliable space-based UV measurements, and only 40 have a mid-IR measurement. We also find that phosphorus, a bio-essential element, has only been measured in 11 of these stars, motivating future abundance surveys. Our catalog is publicly available and we advocate for its use in future studies of promising HWO targets.
Closeby Habitable Exoplanet Survey (CHES). IV. Synergy between astrometry and direct imaging missions of the Habitable World Observatory for detecting Earth-like planets
Habitable Worlds Observatory (HWO): Living Worlds Community Working Group: The Search for Life on Potentially Habitable Exoplanets
NASA Goddard Space Flight Center（美国宇航局戈达德太空飞行中心）；NASA Ames Research Center（美国宇航局艾姆斯研究中心）；Louisiana State University（路易斯安那州立大学）；Jet Propulsion Laboratory, California Institute of Technology（加州理工学院喷气推进实验室）；University of Washington（华盛顿大学）；Purdue University（普渡大学）；University of California at Riverside（加利福尼亚大学河滨分校）；Arizona State University（亚利桑那州立大学）；Johns Hopkins University Applied Physics Laboratory（约翰斯·霍普金斯大学应用物理实验室）；University of Arizona Lunar and Planetary Laboratory（亚利桑那大学月球与行星实验室）；Gemini North Observatory（双子座北望远镜）；Bard College（巴德学院）；University of Oslo（奥斯陆大学）
Paving the Road to the Habitable Worlds Observatory with High-Resolution Imaging I: New and Archival Speckle Observations of Potential HWO Target Stars
Cross-Model Validation of Coronagraphic Exposure Time Calculators for the Habitable Worlds Observatory: A Report from the Exoplanet Science Yield sub-Working Group
CoronaGraph Instrument Reference stars for Exoplanets (CorGI-REx) I. Preliminary Vetting and Implications for the Roman Coronagraph and Habitable Worlds Observatory
Masses of Potentially Habitable Planets Characterized by the Habitable Worlds Observatory
The Ohio State University（俄亥俄州立大学）；NASA Ames Research Center（美国宇航局艾姆斯研究中心）；University of Arizona（亚利桑那大学）；California Institute of Technology（加州理工学院）；NASA Goddard Space Flight Center（美国宇航局戈达德太空飞行中心）
Habitable Worlds Observatory Living Worlds Working Group: Surface Biosignatures on Potentially Habitable Exoplanets
NASA Ames Research Center（美国国家航空航天局艾姆斯研究中心）；University of Washington（华盛顿大学）；University of Michigan（密歇根大学）；NASA Goddard Institute for Space Studies（美国国家航空航天局戈达德太空研究所）；Cornell University（康奈尔大学）；University of California, Riverside（加州大学河滨分校）；University of Bern（伯尔尼大学）；Ludwig-Maximilian University of Munich（慕尼黑路德维希-马克西米利安大学）；IRSOL, Universita Svizzera italiana（瑞士意大利大学太阳观测研究所）；Goddard Space Flight Center（戈达德太空飞行中心）；Purdue University（普渡大学）；Nagoya University（名古屋大学）；University of Rhode Island（罗德岛大学）；Northern Arizona University（北亚利桑那大学）；University of Central Florida（中佛罗里达大学）；Johns Hopkins University Applied Physics Laboratory（约翰斯·霍普金斯大学应用物理实验室）
Exomoons and Exorings with the Habitable Worlds Observatory II: Finding Endor with Lunar Eclipses
University of Michigan（密歇根大学）；University of California, San Diego（加州大学圣迭戈分校）；JHU Applied Physics Laboratory（约翰斯·霍普金斯大学应用物理实验室）；University of St Andrews（圣安德鲁斯大学）；Lunar & Planetary Laboratory, University of Arizona（亚利桑那大学月球与行星实验室）；Center for Astrophysics, Harvard & Smithsonian（哈佛-史密森天体物理中心）
pyEDITH: the coronagraphic exposure time calculator for the Habitable Worlds Observatory
NASA Goddard Space Flight Center（美国宇航局戈达德太空飞行中心）；Department of Astronomy University of Maryland（马里兰大学天文学系）；Center for Research and Exploration in Space Science and Technology II (CRESST II)（空间科学与技术研究探索中心二期（CRESST II））；Department of Astronomy and Astrobiology Program University of Washington（华盛顿大学天文学与天体生物学项目）；Johns Hopkins APL（约翰斯·霍普金斯大学应用物理实验室）；Space Telescope Science Institute（太空望远镜科学研究所）
NASA Decadal Astrobiology Research and Exploration Strategy (NASA-DARES 2025) White Paper -- Habitable Worlds Observatory Living Worlds Science Cases: Research Gaps and Needs
Imaging Venus-like Worlds: Spectral, Polarimetric, and UV Diagnostics for the Habitable Worlds Observatory
University of California, Riverside（加州大学河滨分校）；SETI Institute（SETI研究所）；University of Central Florida（中佛罗里达大学）；Space Research Institute, Austrian Academy of Sciences（奥地利科学院空间研究所）；Washington University, St. Louis（华盛顿大学（圣路易斯））；Université Paris-Saclay（巴黎萨克雷大学）；Université Paris Cité（巴黎西岱大学）
Bayesian Analysis for Remote Biosignature Identification on exoEarths (BARBIE) IV: Analyzing CO2 Detections in the Near-IR to Determine the Long-Wavelength Cut-off for the Habitable Worlds Observatory Coronagraph
NASA Goddard Space Flight Center（美国国家航空航天局戈达德太空飞行中心）；Sellers Exoplanets Environment Collaboration（塞勒斯系外行星环境合作组织）；Southeastern Universities Research Association（东南大学研究协会）；George Mason University（乔治梅森大学）；Morgan State University（摩根州立大学）
The power of polarimetry for characterising exoplanet atmospheres, clouds, and surfaces with NASA's Habitable Worlds Observatory
University of Bristol（布里斯托大学）；University of Oxford（牛津大学）；University of Exeter（埃克塞特大学）；The Open University（开放大学）；University of Edinburgh（爱丁堡大学）；Leiden Observatory（莱顿天文台）；Delft University of Technology（代尔夫特理工大学）
yieldplotlib: A unified library for exoplanet yield code visualizations
Goddard Space Flight Center（戈达德太空飞行中心）；The Catholic University of America（天主教美国大学）；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和技术探索研究中心）；Space Telescope Science Institute（太空望远镜科学研究所）
