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The discovery of the large-scale structure has transformed our view of galaxy formation and evolution. Filaments of the cosmic web provide key environments that channel the growth of structures. Guided by predictions from cosmological…

Astrophysics of Galaxies · Physics 2025-11-11 M. Mondelin , S. Codis , J-C. Cuillandre , C. Laigle , A. Boselli , K. Kraljic , C. Stone

The alignment of clusters of galaxies with their nearest neighbours and between clusters within a supercluster is investigated using simulations of 512^{3} dark matter particles for \LambdaCDM and \tauCDM cosmological models. Strongly…

Astrophysics · Physics 2009-10-31 L. I. Onuora , P. A. Thomas

Using the cosmological hydrodynamics simulation Horizon-AGN, we investigate the spatial distribution of satellite galaxies relative to their central counterpart in the redshift range between 0.3 and 0.8. We find that, on average, these…

Astrophysics of Galaxies · Physics 2022-03-23 Charlotte Welker , Yohan Dubois , Christophe Pichon , Julien Devriendt , Elisa Nora Chisari

The role played by the large-scale structures in the galaxy evolution is not quite well understood yet. In this study, we investigate properties of galaxy in the range 0.1<z<0.3 from a value-added version of the WISExSCOS catalogue around…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-24 V. Bonjean , N. Aghanim , M. Douspis , N. Malavasi , H. Tanimura

This paper examines the evolution of cosmic filaments across redshifts 1, 0.5, and 0 using the IllustrisTNG100-1 magneto-hydrodynamical simulation. To achieve this, we introduce GrAviPaSt, a simple, efficient and parameter-free filament…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-08 Parsa Ghafour , Saeed Tavasoli

Matter in the Universe is arranged in a cosmic web, with a filament of matter typically connecting each neighbouring galaxy pair, separated by tens of millions of light-years. A quadrupolar pattern of the spin field around filaments is…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-01 Qianli Xia , Mark C. Neyrinck , Yan-Chuan Cai , Miguel A. Aragón-Calvo

Torques acting on galaxies lead to physical alignments, but the resulting ellipticity correlations are difficult to predict. As they constitute a major contaminant for cosmic shear studies, it is important to constrain the intrinsic…

Using the data set of The Three Hundred project, i.e. 324 hydrodynamical resimulations of cluster-sized haloes and the regions of radius 15 $h^{-1}$Mpc around them, we study galaxy pairs in high-density environments. By projecting the…

We investigate how the star formation activity of galaxies depends on their position within the cosmic web using the SIMBA cosmological simulation from redshift $z=3$ to $z=0$. While previous studies found that galaxies closer to filaments…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-17 B. Jego , K. Kraljic , M. Béthermin , R. Davé

Galaxy environment plays an important role in driving the transformation of galaxies from blue and star-forming to red and quenched. Recent works have focused on the role of cosmic web filaments in galaxy evolution and have suggested that…

We study galaxy evolution and spatial patterns in the surroundings of a sample of 2dF groups. Our aim is to find evidence of galaxy evolution and clustering out to 10 times the virial radius of the groups and so redefine their properties…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 A. L. B. Ribeiro , M. Trevisan , P. A. A. Lopes , A. C. Schilling

The alignment between satellite and central galaxies serves as a proxy for addressing the issue of galaxy formation and evolution and has been investigated abundantly in observations and theoretical works. Most scenarios indicate that the…

Astrophysics of Galaxies · Physics 2020-02-11 Mingge Zhang , Yang Wang

We study weak lensing properties of filaments that connect clusters of galaxies through large cosmological $N$-body simulations. We select 4639 halo pairs with masses higher than $10^{14}h^{-1}\mathrm{M}_\odot$ from the simulations and…

Cosmology and Nongalactic Astrophysics · Physics 2014-03-27 Yuichi Higuchi , Masamune Oguri , Masato Shirasaki

Galaxy clusters are located at the nodes of the filamentary network known as the cosmic web. A more comprehensive understanding of galaxy clusters can be achieved by considering their environment, in particular, the filamentary structures…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-28 Sara Santoni , Marco De Petris , Gustavo Yepes , Weiguang Cui , Daniel de Andrés , Antonio Ferragamo , Raphaël Wicker

We present a method to study the photometric properties of galaxies in filaments by stacking the galaxy populations between pairs of galaxy clusters. Using Sloan Digital Sky Survey data, this method can detect the inter-cluster filament…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Yuanyuan Zhang , Jörg P. Dietrich , Timothy A. McKay , Erin S. Sheldon , Alex T. Q. Nguyen

Velocity fields in the cosmic web are fundamental to structure formation but remain difficult to observe directly beyond the linear regime. Here we present observational evidence that galaxy filaments connecting pairs of galaxy clusters…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-27 Ji Yao , Huanyuan Shan , Pengjie Zhang , Xiaohu Yang , Jiale Zhou , Jiaxin Han , Peng Wang

We present the first statistical observational study detecting filaments in the immediate surroundings of galaxies, i.e. the local web of galaxies. Simulations predict that cold gas, the fuel for star formation, is channeled through…

For decades, the boundary of cosmic filaments have been a subject of debate. In this work, we determine the physically-motivated radii of filaments by constructing stacked galaxy number density profiles around the filament spines. We find…

We study the origin of misalignments between the stellar and star-forming gas components of simulated galaxies in the EAGLE simulations. We focus on galaxies with stellar masses $\geq 10^9$ M$_\odot$ at 0$\leq$z$\leq$1. We compare the…

Astrophysics of Galaxies · Physics 2024-05-07 Catalina I. Casanueva , Claudia del P. Lagos , Nelson D. Padilla , Thomas A. Davison
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