Environmental dependence of AGN activity and star formation in galaxy clusters from Magneticum simulations

Abstract

(Abridged) Cluster environment has a strong impact on the star formation rate and AGN activity in cluster galaxies. In this work, we investigate the behaviour of different galaxy populations in galaxy clusters and their vicinity by means of cosmological hydrodynamical simulations. We studied galaxies with stellar mass $\log M_{\ast }(M_{\odot })>10.15$ in galaxy clusters with mass $M_{500}>10^{13}{M}_{\odot }$ extracted from box2b (640 comoving Mpc/$h$) of the Magneticum Pathfinder suite of cosmological hydrodynamical simulations at redshifts 0.25 and 0.90. We examined the influence of stellar mass, distance to the nearest neighbouring galaxy, clustercentric radius, substructure membership and large-scale surroundings on the fraction of galaxies hosting an AGN, star formation rate and the ratio between star-forming and quiescent galaxies. We found that in low-mass galaxies, AGN activity and star formation are similarly affected by the environment and decline towards the cluster centre. In massive galaxies, the impact is different; star-formation level increases in the inner regions and peaks between 0.5 and 1 $R_{500}$ with a rapid decline in the centre, whereas AGN activity declines in the inner regions and rapidly rises below $R_{500}$ towards the centre - likely due to stellar mass stripping and the consequent selection of galaxies with more massive black holes. After disentangling the contributions of neighbouring cluster regions, we found an excess of AGN activity in massive galaxies on the cluster outskirts ($\sim 3R_{500}$). We also found that the local density, substructure membership and stellar mass strongly influence star formation and AGN activity but verified that they cannot fully account for the observed radial trends.

Published in A&A, 14 pages, 12 figures, 1 table

References in corpus (24)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• The effect of photo-ionization on the cooling rates of enriched, astrophysical plasmas
• Strangulation as the primary mechanism for shutting down star formation in galaxies
• Structure and star formation in galaxies out to z=3: evidence for surface density dependent evolution and upsizing
• The Tidal Evolution of Local Group Dwarf Spheroidals
• Chemical enrichment of galaxy clusters from hydrodynamical simulations
• Ram Pressure Stripping in High-Density Environments
• AEGIS: The color-magnitude relation for X-ray selected AGN
• A refined sub-grid model for black hole accretion and AGN feedback in large cosmological simulations
• On the influence of ram-pressure stripping on the star formation of simulated spiral galaxies
• Ram pressure feeding super-massive black holes
• The Preferential Tidal Stripping of Dark Matter versus Stars in Galaxies
• The Distribution of AGN in Clusters of Galaxies
• On the influence of ram-pressure stripping on interacting galaxies in clusters
• Exploring AGN and Star Formation Activity of Massive Galaxies at Cosmic Noon
• X-ray bright active galactic nuclei in massive galaxy clusters III: New insights into the triggering mechanisms of cluster AGN
• The morphological transformation and the quenching of galaxies
• High density of active galactic nuclei in the outskirts of distant galaxy clusters
• The Three Hundred project: Galaxy groups do not survive cluster infall
• AGN triggering in the infall regions of distant X-ray luminous galaxy clusters at 0.9 < z <~ 1.6
• Leavers and remainers: Galaxies split by group-exit
• Clustercentric distance or local density? It depends on galaxy morphology

Cited by in corpus (7)

• Effects of galaxy environment on merger fraction
• Radial X-ray profiles of simulated galaxies: Contributions from hot gas and XRBs
• XXL-HSC: Host properties of X-ray detected AGNs in XXL clusters
• The global energetics of radio AGN kinetic feedback in the local universe
• Unravelling the orbits of cluster galaxy populations according to their dominant gas ionization source
• Enhanced AGN Activity in Overdense Galactic Environments at $2<z<4$
• Blueberry and Green Pea galaxies live in low density environments