The 8.4m Vera Rubin Observatory Legacy Survey of Space and Time (LSST) will start a ten-year survey of the southern hemisphere sky in 2023. LSST will revolutionise low surface brightness astronomy. It will transform our understanding of galaxy evolution, through the study of low surface brightness features around galaxies (faint shells, tidal tails, halos and stellar streams), discovery of low surface brightness galaxies and the first set of statistical measurements of the intracluster light over a significant range of cluster masses and redshifts.
We present a preview of the faint dwarf galaxy discoveries that will be possible with the Vera C. Rubin Observatory and Subaru Hyper Suprime-Cam in the next decade. In this work, we combine deep ground-based images from the Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) and extensive image simulations to investigate the recovery of faint, resolved dwarf galaxies in the Local Volume with a matched-filter technique. We adopt three fiducial distances - 1.5, 3.5, 5 Mpc, and quantitatively evaluate the effects on dwarf detection of varied stellar backgrounds, ellipticity, and Milky Way…
Discovery of the Distant, Ultra-Faint Milky Way Satellite Aquarius IV with the Vera C. Rubin Observatory Early Data Preview 2
Yale University（耶鲁大学）；University of Chicago（芝加哥大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；University of Virginia（弗吉尼亚大学）；University of Washington（华盛顿大学）
W-CDF-S, ELAIS-S1, and XMM-LSS will be three Deep-Drilling Fields (DDFs) of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), but their extensive multi-wavelength data have not been fully utilized as done in the COSMOS field, another LSST DDF. To prepare for future science, we fit source spectral energy distributions (SEDs) from X-ray to far-infrared in these three fields mainly to derive galaxy stellar masses and star-formation rates. We use CIGALE v2022.0, a code that has been regularly developed and evaluated, for the SED fitting. Our catalog includes 0.8 million sources…
Pushing Variability Searches to Extreme Dwarf Galaxies with the Vera C. Rubin Observatory Data Preview 2
University of Michigan（密歇根大学）；The Pennsylvania State University（宾夕法尼亚州立大学）；Universidad de Tarapacá（塔拉帕卡大学）；INAF-Osservatorio Astronomico di Roma（罗马天文台（意大利国家天体物理研究所））；University of North Texas（北德克萨斯大学）；Swinburne University of Technology（斯威本科技大学）；Shanghai Astronomical Observatory, Chinese Academy of Sciences（中国科学院上海天文台）
Skykatana: a scalable framework to construct sky masks for the Vera Rubin Observatory and large astronomical surveys
Instituto de Ciencias Astronómicas, de la Tierra y del Espacio (ICATE), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)（地球与空间天文科学研究所 (ICATE)，阿根廷国家科学研究委员会 (CONICET)）；Facultad de Ciencias Exactas, Físicas y Naturales (FCEFYN-UNSJ), Universidad Nacional de San Juan（圣胡安国立大学精确、物理与自然科学学院 (FCEFYN-UNSJ)）；Instituto de Astronomía Teórica y Experimental (IATE), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)（理论与实验天文学研究所 (IATE)，阿根廷国家科学研究委员会 (CONICET)）；Observatorio Astronómico Córdoba , Universidad Nacional de Córdoba（科尔多瓦天文台，科尔多瓦国立大学）
Tidal features in the outskirts of galaxies yield unique information about their past interactions and are a key prediction of the hierarchical structure formation paradigm. The Vera C. Rubin Observatory is poised to deliver deep observations for potentially of millions of objects with visible tidal features, but the inference of galaxy interaction histories from such features is not straightforward. Utilising automated techniques and human visual classification in conjunction with realistic mock images produced using the NEWHORIZON cosmological simulation, we investigate the nature, frequency…
We investigate the possibility that a statistical detection of the galaxy parallax shift due to the Earth's motion with respect to the CMB frame (cosmic secular parallax) could be made by the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) or by the Nancy Grace Roman Space Telescope (NGRST), and used to measure the Hubble constant. We make mock galaxy surveys which extend to redshift z=0.06 from a large N-body simulation, and include astrometric errors from the LSST and NGRST science requirements, redshift errors and peculiar velocities. We include spectroscopic redshifts for …
The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will observe several Deep Drilling Fields (DDFs) to a greater depth and with a more rapid cadence than the main survey. In this paper, we describe the ``DeepDrill'' survey, which used the Spitzer Space Telescope Infrared Array Camera (IRAC) to observe three of the four currently defined DDFs in two bands, centered on 3.6 $μ$m and 4.5 $μ$m. These observations expand the area which was covered by an earlier set of observations in these three fields by the Spitzer Extragalactic Representative Volume Survey (SERVS). The combined …
In Cosmology and in Fundamental Physics there is a crucial question like: where the elusive substance that we call Dark Matter is hidden in the Universe and what is it made of?, that, even after 40 years from the Vera Rubin seminal discovery does not have a proper answer. Actually, the more we have investigated, the more this issue has become strongly entangled with aspects that go beyond the established Quantum Physics, the Standard Model of Elementary particles and the General Relativity and related to processes like the Inflation, the accelerated expansion of the Universe and High Energy Ph…
Photometric redshifts for active galactic nuclei with LePHARE for the Vera C. Rubin Observatory
Max-Planck-Institut für extraterrestrische Physik（马克斯·普朗克地外物理学研究所）；Exzellenzcluster ORIGINS（ORIGINS卓越集群）；Université Clermont-Auvergne（克莱蒙奥弗涅大学）；Aix-Marseille Université（艾克斯-马赛大学）；Université Paris-Saclay（巴黎萨克雷大学）；Université Paris-Cité（巴黎 Cité 大学）；Núcleo de Astronomía de la Facultad de Ingeniería, Universidad Diego Portales（迭戈帕拉莱斯大学工程学院天文学中心）；School of Physics and Astronomy, University of Southampton（南安普顿大学物理与天文学院）；INAF-Osservatorio Astronomico di Roma（罗马国家天体物理研究所天文台）；Institute for Gravitation and the Cosmos, The Pennsylvania State University（宾夕法尼亚州立大学引力与宇宙学研究所）
本研究针对Vera C. Rubin天文台的LSST巡天，用LePHARE分析AGN测光红移的影响因素，提供AGN处理配置及COSMOS天区AGN测光红移数据，优化AGN测光红移计算。
Rubin Observatory Reveals a Dust-Shrouded Halo Globular Cluster in Ophiuchus
University of Chicago（芝加哥大学）；Yale University（耶鲁大学）；University of Virginia（弗吉尼亚大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；University of Washington（华盛顿大学）
We describe a large simulation of the stars to be observed by the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST). The simulation is based on the TRILEGAL code, which resorts to large databases of stellar evolutionary tracks, synthetic spectra, and pulsation models, added to simple prescriptions for the stellar density and star formation histories of the main structures of the Galaxy, to generate mock stellar samples through a population synthesis approach. The main bodies of the Magellanic Clouds are also included. A complete simulation is provided for single stars, down to t…
NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
LSST Interdisciplinary Network for Collaboration and Computing Frameworks（LSST跨学科合作与计算框架网络）；Dept. of Astronomy & the DiRAC Institute, University of Washington（华盛顿大学天文学系及DiRAC研究所）；Department of Astronomy and Planetary Science, Northern Arizona University（北亚利桑那大学天文与行星科学系）
本文报告了NSF-DOE Vera C. Rubin Observatory对星际彗星3I/ATLAS的观测结果，包括其天体测量、光度学、形态学和活动性测量，展示了该望远镜在早期观测中的精度和发现潜力。
A complete map of the youngest stellar populations of the Milky Way in the era of all-sky surveys, is one of the most challenging goals in modern astrophysics. The characterisation of the youngest stellar component is crucial not only for a global overview of the Milky Way structure, of the Galactic thin disk, and its spiral arms, but also for local studies. In fact, the identification of the star forming regions (SFRs) and the comparison with the environment in which they form are also fundamental to put them in the context of the surrounding giant molecular clouds and to understand still unk…
A Deep Look at the Ultra-Faint Milky Way Satellite Virgo III with Rubin Observatory Data Preview 2
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）；NSF-Simons AI Institute for the Sky (SkAI)（美国国家科学基金会-西蒙斯天空人工智能研究所）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Department of Astronomy and Astrophysics, University of Chicago（芝加哥大学天体物理学系）；DIRAC Institute, Department of Astronomy, University of Washington（华盛顿大学天文学系迪拉克研究所）；Department of Astronomy, Yale University（耶鲁大学天文学系）
Rubin LSST DP2 unveils almost-dark galaxies in the Virgo Cluster
Instituto de Astrofísica de Canarias（加那利天体物理学研究所）；Universidad de La Laguna（拉古纳大学）；University of Groningen（格罗宁根大学）；Kapteyn Astronomical Institute, University of Groningen（格罗宁根大学卡普坦天文研究所）；Leibniz-Institut für Astrophysik Potsdam (AIP)（波茨坦阿基米德莱布尼茨天体物理研究所）；Centre for Astrophysics Research, University of Hertfordshire（赫特福德大学天体物理研究中心）；Princeton University（普林斯顿大学）；Université de Strasbourg, CNRS, Observatoire astronomique de Strasbourg（斯特拉斯堡大学、法国国家科学研究中心、斯特拉斯堡天文台）；Brown University（布朗大学）；Stanford University（斯坦福大学）
The NASA Nancy Grace Roman Space Telescope (Roman) and the Vera C. Rubin Observatory Legacy Survey of Space and Time (Rubin), will transform our view of the wide-field sky, with similar sensitivities, but complementary in wavelength, spatial resolution, and time domain coverage. Here we present findings from the AURA Roman+Rubin Synergy Working group, charged by the STScI and NOIRLab Directors to identify frontier science questions in General Astrophysics, beyond the well-covered areas of Dark Energy and Cosmology, that can be uniquely addressed with Roman and Rubin synergies in observing stra…
The Vera C. Rubin Legacy Survey of Space and Time holds the potential to revolutionize time domain astrophysics, reaching completely unexplored areas of the Universe and mapping variability time scales from minutes to a decade. To prepare to maximize the potential of the Rubin LSST data for the exploration of the transient and variable Universe, one of the four pillars of Rubin LSST science, the Transient and Variable Stars Science Collaboration, one of the eight Rubin LSST Science Collaborations, has identified research areas of interest and requirements, and paths to enable them. While our r…
Vera C. Rubin Observatory, through the Legacy Survey of Space and Time (LSST), will allow us to derive a panchromatic view of variability in young stellar objects (YSOs) across all relevant timescales. Indeed, both short-term variability (on timescales of hours to days) and long-term variability (months to years), predominantly driven by the dynamics of accretion processes in disk-hosting YSOs, can be explored by taking advantage of the multi-band filters option available in Rubin LSST, in particular the $u,g,r,i$ filters that enable us to discriminate between photospheric stellar properties a…
DETECT: A Pipeline to Quantify Detection Thresholds in Rubin for Nearby Targets Embedded in Bright Host Galaxies
Dunlap Institute for Astronomy & Astrophysics, University of Toronto（多伦多大学邓普天体物理研究所）；David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto（多伦多大学大卫·A·邓普天文学与天体物理学系）；Cahill Center for Astrophysics, California Institute of Technology（加州理工学院凯尔天体物理学中心）；Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University（西北大学天体物理学跨学科探索与研究中心及物理与天文系）
Scalable and Robust Multiband Modeling of AGN Light Curves in Rubin-LSST
Bishop’s University（主教大学）；Yale University（耶鲁大学）；Universidad Diego Portales（迭戈·波特莱斯大学）；Wayne State University（韦恩州立大学）；Universidad de Tarapacá（塔拉帕卡大学）；University of Napoli “Federico II（那不勒斯费德里科二世大学）；INAF - Osservatorio Astronomico di Capodimonte（意大利国家天体物理研究所卡波迪蒙特天文台）；Millennium Institute of Astrophysics (MAS)（天体物理学千年研究所）
`Oumuamua and Borisov were the first two interstellar objects confirmed in the Solar system. The upcoming commencement of the Vera C. Rubin Observatory's Legacy Survey of Space of Time (LSST) will enhance greatly the discovery rate of interstellar objects. This raises the question, what can be learned from large-number statistics of interstellar objects? Here, we show that discovery statistics provided by LSST will allow low- and high-ejection-speed populations to be distinguished using the velocity dispersion and angular anisotropy of interstellar objects. These findings can be combined with …
Presaging Doppler beaming discoveries of double white dwarfs during the Rubin LSST era
Johns Hopkins University（约翰斯·霍普金斯大学）；Astrophysics Research Center of the Open University (ARCO)（开放大学天体物理研究中心）；Institute for Advanced Study, Princeton（普林斯顿高等研究院）；The Observatories of the Carnegie Institution for Science（卡内基科学研究所天文台）
Redshift Assessment Infrastructure Layers (RAIL): Rubin-era photometric redshift stress-testing and at-scale production
Ruhr University Bochum（鲁尔大学波鸿）；SLAC National Accelerator Laboratory（斯坦福直线加速器中心）；Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Stanford University（卡弗里粒子天体物理与宇宙学研究所，斯坦福大学）；Université Clermont-Auvergne, CNRS, LPCA（克莱蒙奥弗涅大学，法国国家科学研究中心，LPCA）；McWilliams Center for Cosmology and Astrophysics, Department of Physics, Carnegie Mellon University（梅斯威尔宇宙学与天体物理中心，卡内基梅隆大学物理系）
RAIL 是一个开源 Python 库，用于大规模概率光度红移估计，提供模块化工具进行端到端压力测试和红移 PDF 估算，适用于多种科学目标。
Detectability of Gravitationally Lensed Kilonovae in the Rubin LSST
Inter-University Centre for Astronomy and Astrophysics（天文与天体物理大学间中心）；Kavli Institute for the Physics and Mathematics of the Universe (IPMU)（宇宙物理与数学卡弗里研究所）
Hyrax: An Extensible Framework for Rapid ML Experimentation and Unsupervised Discovery in the Era of Rubin, Roman, and Euclid
Dept. of Astronomy \& the DiRAC Institute, University of Washington, Box 351580, Seattle, WA 98195, USA；School of Physics；Astronomy, University of Minnesota, Minneapolis, MN 55455, USA；Department of Astronomy；Planetary Science, Northern Arizona University, Flagstaff, USA；McWilliams Center for Cosmology；Astrophysics, Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA
