Galaxies evolve within the intricate geometry of the cosmic web, yet the distinct roles of its primary components - nodes and filaments remain incompletely understood. Using the EAGLE cosmological hydrodynamical simulation, we investigate how distances to filament spines and cluster-scale nodes jointly and independently influence galaxy evolution. Galaxies are classified into red, green, and blue populations through a fully data-driven entropic thresholding technique, and the nodes and filaments are identified using DisPerSE. We find that red galaxies preferentially reside near filament cores and nodes, whereas blue and green galaxies dominate the outskirts. This spatial segregation reveals two characteristic transition scales: a node-related crossover at $\sim 2.5~\mathrm{Mpc}$ and a filament-related crossover at $\sim 0.75~\mathrm{Mpc}$. To further quantify environmental influence, we adopt an information-theoretic approach and measure the normalised mutual information between dominant mass component and galaxy colour across the $d_{\mathrm{f}}$-$d_{\mathrm{n}}$ plane. The mass-colour coupling increases with distance from nodes at fixed filament proximity, indicating a weakening of this relation in cluster-scale environments and a stronger coupling within filamentary regions. This behaviour is strongly mass dependent, with low-mass galaxies exhibiting a more pronounced environmental modulation than high-mass systems. These results support a scale-dependent view of galaxy evolution across the cosmic web, highlighting the distinct and complementary influence of nodes and filaments.
Tracing Galaxy Bias Through the Cosmic Web: The Role of Filaments
Universidad Técnica Federico Santa María(弗雷德里克·Santa Maria 技术大学);Pontificia Universidad Católica de Valparaíso(瓦爾帕萊索天主教大學);The University of Tokyo(東京大學);University of Pennsylvania(賓夕法尼亞大學);The Abdus Salam International Center for Theoretical Physics(阿卜杜斯·薩拉姆國際理論物理中心);Universidad Nacional de Córdoba(科爾多瓦國立大學);CONICET-UNC(阿根廷國家科學技術研究委員會-科爾多瓦大學)
Study of galaxies on large-scale filaments in simulations
我们利用EAGLE(Evolution and Assembly of Galeries in their Environment)宇宙学模拟的数据来研究宇宙网中星系的性质。相对于远离大尺度丝状体圆柱轴的对应物,星系变得更红,形成恒星的速率也更低。这些趋势在具有$M_*/M_{\odot}\lesssim10^{10}$的星系中尤为强烈。我们还发现,在距离$<0.5$ Mpc的暗条的脊柱,在暗条星系的气体和恒星的质量分数的中位数急剧上升,从脊柱的距离减少的暗条。这些结果,与匹配的趋势,在SFR/ $M_*$和$g-r$颜色的细丝星系表明,(i)的星系内气体凝聚成的细丝星系,从而燃料在他们的恒星形成,和(ii)增加星系的数量密度更接近的中心轴的细丝星系之间的引力相互作用的速度更接近脊柱。
Star-forming galaxies in the cosmic web in the last 11 Gyr
Observatoire Astronomique de Strasbourg, UMR 7550, CNRS, Université de Strasbourg(斯特拉斯堡天文台);Institute for Astronomy, University of Edinburgh(爱丁堡大学天体物理研究所);Department of Physics and Astronomy, University of the Western Cape(西开普大学物理与天文学系)
FOREST unbiased Galactic plane imaging survey with the Nobeyama 45 m telescope (FUGIN): Possible evidence of cloud-cloud collisions triggering high-mass star formation in the giant molecular cloud M16 (Eagle Nebula)
A 15 Mpc rotating galaxy filament at redshift z = 0.032
Institute of Astronomy, University of Cambridge(剑桥大学天文学研究所);Astrophysics, Department of Physics, University of Oxford(牛津大学物理系天体物理学);Department of Physics and Astronomy, University of the Western Cape(西开普敦大学物理与天文学系);Department of Physics and Electronics, Rhodes University(罗德岛大学物理与电子学系);South African Radio Astronomy Observatory(南非射电天文台);Centre for Astrophysics Research, School of Physics, Astronomy and Mathematics, University of Hertfordshire(赫特福德大学物理、天文学与数学学院天体物理研究中心);School of Physics, H.H. Wills Physics Laboratory, Tyndall Avenue, University of Bristol(布里斯托大学H.H.威尔斯物理实验室);Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh(爱丁堡大学皇家天文台天文学研究所);The Inter-University Institute for Data Intensive Astronomy (IDIA), Department of Astronomy, University of Cape Town(开普敦大学天文学系数据密集型天文学跨大学研究所)
发现红移 z = 0.032 处 15 Mpc 的旋转星系丝状结构,揭示星系角动量与宇宙网结构的关系及早期演化特征。
The Evolution of the Spin Alignments of Dark Matter Halos in the Cosmic Web
Universidad Técnica Federico Santa María(费德里科·圣玛丽亚技术大学);Millenium Nucleus for Galaxies (MINGAL)(星系千年核心(MINGAL));Observatoire Astronomique de Strasbourg, Université de Strasbourg, CNRS, UMR 7550(斯特拉斯堡天文台,斯特拉斯堡大学,法国国家科学研究中心,UMR 7550);Observatorio Astronómico de Córdoba, Universidad Nacional de Córdoba (UNC)(科尔多瓦天文台,科尔多瓦国立大学(UNC));Instituto de Astronomía Teórica y Experimental, CONICET-UNC(理论与实验天体物理研究所,阿根廷国家科学研究委员会-科尔多瓦国立大学)
The Three Hundred project: cosmic web identification from 2D gas and Compton-$y$ maps of galaxy clusters outskirts
Sapienza Università di Roma(罗马第一大学);Universidad Autónoma de Madrid(马德里自治大学);Centro de Investigación Avanzada en Física Fundamental (CIAFF)(基础物理高级研究中心);University of Edinburgh(爱丁堡大学);Universidad Rey Juan Carlos(雷乌斯·胡安·卡洛斯国王大学);Università degli Studi di Napoli Federico II(那不勒斯费德里科二世大学)
Impact of Cosmic Filaments on Galaxy Morphological Evolution and Predictions of Early Cosmic Web Structure for Roman
Space Telescope Science Institute(太空望远镜科学研究所);New Mexico State University(新墨西哥州立大学);Steward Observatory, University of Arizona(亚利桑那大学斯图尔德天文台);Canadian Institute for Theoretical Astrophysics, University of Toronto(多伦多大学加拿大理论天体物理研究所);Columbia Astrophysics Laboratory, Columbia University(哥伦比亚大学哥伦比亚天体物理学实验室);Johns Hopkins University(约翰斯·霍普金斯大学)
Zippers and Twisters: Planes of Satellite Galaxies Emerge from Whirling and Shocking Gas Streams in the Cosmic Web
Johns Hopkins University(约翰斯·霍普金斯大学);NYC College of Technology, City University of New York(纽约市立大学学院技术学院);Graduate Center, City University of New York(纽约市立大学研究生中心);Institut d’Astrophsyique de Paris, UMR 7095, CNRS, UPMC Univ.(巴黎天体物理研究所);Kyung Hee University(庆熙大学);LSST-DA Catalyst Fellowship, LSST Discovery Alliance(LSST-DA催化剂奖学金,LSST发现联盟);Centre for Astrophysics Research, University of Hertfordshire(赫特福德大学天体物理学研究中心)
Unveiling the small-scale web around galaxies with miniJPAS and DESI
Max-Planck Institute for Astrophysics(马克斯·普朗克天体物理学研究所);Kavli IPMU (WPI), UTIAS, The University of Tokyo(理化学研究所木下原宇宙起源研究核心理论中心( Kavli IPMU)、东京大学宇宙射线研究所、东京大学);Donostia International Physics Center (DIPC)(圣塞巴斯蒂安国际物理中心);IKERBASQUE, Basque Foundation for Science(伊克尔巴斯基克科学基金会);Hamburger Sternwarte, Universität Hamburg(汉堡天文台,汉堡大学);Instituto de Astrofísica de Andalucía (IAA-CSIC)(安达卢西亚天体物理学研究所);Tartu Observatory, University of Tartu(塔尔图天文台,塔尔图大学);Estonian Academy of Sciences(爱沙尼亚科学院);Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo(圣保罗大学数学物理系、物理研究所);Observatori Astronòmic de la Universitat de València(瓦伦西亚大学天文台);Departament d’Astronomia i Astrofísica, Universitat de València(瓦伦西亚大学天文学与天体物理学系);Departamento de Física, Universidade Federal do Espírito Santo(圣埃斯皮里图联邦大学物理系)
The impact of cosmic filaments on starburst galaxies across cosmic times
Observatoire Astronomique de Strasbourg, UMR 7550, CNRS, Université de Strasbourg(斯特拉斯堡天文台,法国国家科学研究中心,斯特拉斯堡大学);Institut d’Astrophysique de Paris, UMR 7095, CNRS, Sorbonne Université(巴黎天体物理研究所,法国国家科学研究中心,索邦大学);SRON Netherlands Institute for Space Research(荷兰空间研究所);Kapteyn Astronomical Institute, University of Groningen(格罗宁根大学卡普坦天文研究所);European Space Agency/ESTEC(欧洲空间局/欧洲空间研究与技术中心);Leiden Observatory, Leiden University(莱顿大学莱顿天文台);Aix Marseille Univ, CNRS, CNES, LAM(艾克斯-马赛大学,法国国家科学研究中心,法国国家太空研究中心);The University of Texas at Austin(德克萨斯大学奥斯汀分校);Department of Physics, University of California, Santa Barbara(加州大学圣塔芭芭拉分校物理系);Cosmic Dawn Center (DAWN)(宇宙黎明中心);Institute for Computational Cosmology, Department of Physics, Durham University(杜伦大学物理系计算宇宙学研究所)
Cosmic-web quenching with DESI DR1: T-Web environments and mass-dependent red/blue classification
Escuela de Física y Matemáticas del Instituto Politécnico Nacional(国立理工学院物理与数学学院);Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional(国立理工学院高级研究中心物理系);Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias(蒙特雷科技大学工程与科学学院)