Galaxy quenching across the Cosmic Web: disentangling mass and environment with SDSS DR18

Abstract

We investigate the influence of large-scale cosmic web environments on galaxy quenching using a volume-limited, stellar mass-matched galaxy sample from SDSS DR18. Galaxies are classified as residing in sheets, filaments, or clusters based on the eigenvalues of the tidal tensor derived from the smoothed density field. The quenched fraction increases with stellar mass and is highest in clusters, intermediate in filaments, and lowest in sheets, reflecting the increasing efficiency of environmental quenching with density. A flattening of the quenched fraction beyond ${\log }_{10}(M_{\star }/M_{\odot })\sim 10.6$ across all environments signals a transition from environment-driven to mass-driven quenching. In contrast, the bulge fraction continues to rise beyond this threshold, indicating a decoupling between star formation suppression and morphological transformation. At the high-mass end (${\log }_{10}(M_{\star }/M_{\odot })\gtrsim 11.5$), both quenched and bulge fractions bifurcate, increasing in clusters but declining in sheets, suggesting a divergent evolutionary pathway where massive galaxies in sheets retain cold gas and disk-like morphologies, potentially sustaining or rejuvenating star formation. The AGN fraction also increases with stellar mass and is somewhat higher in sheets than in clusters, indicating enhanced AGN activity in low-density, gas-rich environments. The high-mass trends are independently corroborated by our analysis of specific star formation rate, $(u-r)$ colour, concentration index, and D4000 in the stellar mass-density plane, which show that massive galaxies in sheets remain bluer, younger, more star-forming, and structurally less evolved than their cluster counterparts. Our results highlight the cosmic web as an active driver of galaxy evolution.

21 pages, 3 tables, 12 figures, Accepted for publication in ApJ

References in corpus (40)

• Cosmic Star Formation History
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• A Semi-Analytic Model for the Co-evolution of Galaxies, Black Holes, and Active Galactic Nuclei
• Assembly bias in the clustering of dark matter haloes
• Halo assembly bias and its effects on galaxy clustering
• The fourth data release of the Kilo-Degree Survey: ugri imaging and nine-band optical-IR photometry over 1000 square degrees
• Evidence for Mature Bulges and an Inside-out Quenching Phase 3 Billion Years After the Big Bang
• The Evolution of Dark Matter Halo Properties in Clusters, Filaments, Sheets and Voids
• Strangulation in Galaxy Groups
• The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V
• Bursting and Quenching in Massive Galaxies without Major Mergers or AGNs
• Morphology and star formation in IllustrisTNG: the build-up of spheroids and discs
• Ram pressure stripping of disc galaxies orbiting in clusters. I. Mass and radius of the remaining gas disc
• A parsec-resolution simulation of the Antennae galaxies: Formation of star clusters during the merger
• Effect of local environment and stellar mass on galaxy quenching and morphology at $0.5<z<2.0$
• Cosmic Web and Star Formation Activity in Galaxies at z~1
• From voids to filaments: environmental transformations of galaxies in the SDSS
• Cosmic Web of Galaxies in the COSMOS Field: Public Catalog and Different Quenching for Centrals and Satellites
• The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies
• Spatially resolved star formation and fuelling in galaxy interactions
• The environmental dependence of gas accretion onto galaxies: quenching satellites through starvation
• Disk Growth and Quenching
• The quenching of galaxies, bulges, and disks since cosmic noon: A machine learning approach for identifying causality in astronomical data
• An EAGLE view of the missing baryons
• The impact of the connectivity of the cosmic web on the physical properties of galaxies at its nodes
• The fate of the gaseous disks of galaxies that fall into clusters
• Multiscale cosmic web detachments, connectivity, and preprocessing in the supercluster SClA2142 cocoon
• The boundary of cosmic filaments
• The Evolving Effect Of Cosmic Web Environment On Galaxy Quenching
• The effect of cosmic web filaments on galaxy evolution
• Study of galaxies on large-scale filaments in simulations
• The SAMI Galaxy Survey: Environmental analysis of the orbital structures of passive galaxies
• Galaxy interactions in filaments and sheets: effects of the large-scale structures versus the local density
• A method for classification of red, blue and green galaxies using fuzzy set theory
• Galaxy interactions in filaments and sheets: insights from EAGLE simulations
• Exploring the evolution of red and blue galaxies in different cosmic web environments using IllustrisTNG simulation