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The role of the cosmic web in shaping galaxy properties is investigated in the GAMA spectroscopic survey in the redshift range $0.03 \leq z \leq 0.25$. The stellar mass, $u - r$ dust corrected colour and specific star formation rate (sSFR)…

A large-scale hydrodynamical cosmological simulation, Horizon-AGN, is used to investigate the alignment between the spin of galaxies and the cosmic filaments above redshift 1.2. The analysis of more than 150 000 galaxies per time step in…

We investigate the impact of the number of filaments connected to the nodes of the cosmic web on the physical properties of their galaxies using the Sloan Digital Sky Survey. We compare these measurements to the cosmological hydrodynamical…

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…

宇宙学与河外天体物理 · 物理学 2026-02-17 B. Jego , K. Kraljic , M. Béthermin , R. Davé

Galaxies are not distributed randomly throughout space but are instead arranged in an intricate "cosmic web" of filaments and walls surrounding bubble-like voids. There is still no compelling observational evidence of a link between the…

天体物理学 · 物理学 2009-11-13 Ignacio Trujillo , Conrado Carretero , Santiago G. Patiri

The matter distribution in the Universe exhibits a rich variety of structures forming the cosmic web. These structures arise from the anisotropic gravitational collapse of primordial density fluctuations and define the pathways along which…

星系天体物理 · 物理学 2026-01-21 J. A. L. Aguerri , S. Zarattini

Despite containing about a half of the total matter in the Universe, at most wavelengths the filamentary structure of the cosmic web is difficult to observe. In this work, we use large unigrid cosmological simulations to investigate how the…

宇宙学与河外天体物理 · 物理学 2016-08-17 Claudio Gheller , Franco Vazza , Marcus Brueggen , Mehmet Alpaslan , Benne Willem Holwerda , Andrew Hopkins , Jochen Liske

This work investigates the alignment of galactic spins with the cosmic web across cosmic time using the cosmological hydrodynamical simulation Horizon-AGN. The cosmic web structure is extracted via the persistent skeleton as implemented in…

宇宙学与河外天体物理 · 物理学 2018-09-26 S. Codis , A. Jindal , N. E. Chisari , D. Vibert , Y. Dubois , C. Pichon , J. Devriendt

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…

星系天体物理 · 物理学 2026-02-25 Suman Sarkar , Biswajit Pandey , Apashanka Das

Using the Horizon-AGN simulation we find a mass dependent spin orientation trend for galaxies: the spin of low-mass, rotation-dominated, blue, star-forming galaxies are preferentially aligned with their closest filament, whereas high-mass,…

星系天体物理 · 物理学 2017-02-15 charlotte Welker , Yohan Dubois , Julien Devriendt , Christophe Pichon , Sebastien Peirani

Filaments of the cosmic web drive spin acquisition of disc galaxies. The point process of filament-type saddle represent best this environment and can be used to revisit the Tidal Torque Theory in the context of an anisotropic peak (saddle)…

We use data from the Evolution and Assembly of GaLaxies in their Environment (EAGLE) cosmological simulation to study properties of galaxies in the cosmic web. Galaxies become more redder and form stars at a lower rate relative to their…

星系天体物理 · 物理学 2020-07-29 Ankit Singh , Smriti Mahajan , J. S. Bagla

Large-scale structure of Universe includes galaxy clusters connected by filaments. Voids occupy the rest of cosmic volume. The search of any dependencities in filament structure can give answer to more general questions about origin of…

宇宙学与河外天体物理 · 物理学 2019-01-09 V. V. Voitsekhovskiy , A. V. Tugay

The impact of active galactic nuclei (AGN) on the evolution of galaxies explains the steep decrease in the number density of the most massive galaxies in the Universe. However, the fueling of the AGN and the efficiency of this feedback…

星系天体物理 · 物理学 2025-02-07 Seoyoung Lyla Jung , I. H. Whittam , M. J. Jarvis , C. L. Hale , M. N. Tudorache , T. Yasin

Utilizing high-resolution large-scale galaxy formation simulations of the standard cold dark matter model, we examine global trends in the evolution of galaxies due to gravitational shock heating by collapse of large halos and large-scale…

宇宙学与河外天体物理 · 物理学 2015-05-28 Renyue Cen

We provide a novel, unifying physical interpretation on the origin, the average shape, the scatter, and the cosmic evolution for the main sequences of starforming galaxies and active galactic nuclei at high redshift z $\gtrsim$ 1. We…

星系天体物理 · 物理学 2018-06-20 Claudia Mancuso , A. Lapi , J. Shi , J. Gonzàlez-Nuevo , M. Bèthermin , L. Danese

We look for correlated changes in stellar mass and star formation rate along filaments in the cosmic web by examining the stellar masses and UV-derived star formation rates (SFR) of 1,799 ungrouped and unpaired spiral galaxies that reside…

Galaxy filaments are a peculiar environment, and their impact on the galaxy properties is still controversial. Exploiting the data from the GAs Stripping Phenomena in galaxies with MUSE (GASP), we provide the first characterisation of the…

The mass, accretion rate and formation time of dark matter haloes near proto-filaments (identified as saddle points of the potential) are analytically predicted using a conditional version of the excursion set approach in its so-called…

宇宙学与河外天体物理 · 物理学 2021-10-28 M. Musso , C. Cadiou , C. Pichon , S. Codis , K. Kraljic , Y. Dubois

We examine how the mass assembly of central galaxies depends on their location in the cosmic web. The HORIZON-AGN simulation is analysed at z~2 using the DISPERSE code to extract multi-scale cosmic filaments. We find that the dependency of…

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