Supermassive black holes in cosmological simulations II: the AGN population and predictions for upcoming X-ray missions

Abstract

In large-scale hydrodynamical cosmological simulations, the fate of massive galaxies is mainly dictated by the modeling of feedback from active galactic nuclei (AGN). The amount of energy released by AGN feedback is proportional to the mass that has been accreted onto the BHs, but the exact sub-grid modeling of AGN feedback differs in all simulations. Whilst modern simulations reliably produce populations of quiescent massive galaxies at z<2, it is also crucial to assess the similarities and differences of the responsible AGN populations. Here, we compare the AGN population of the Illustris, TNG100, TNG300, Horizon-AGN, EAGLE, and SIMBA simulations. The AGN luminosity function (LF) varies significantly between simulations. Although in agreement with current observational constraints at z=0, at higher redshift the agreement of the LFs deteriorates with most simulations producing too many AGN of L_{x, 2-10 keV}~10^43-10^44 erg/s. AGN feedback in some simulations prevents the existence of any bright AGN with L_{x, 2-10 keV}>=10^45 erg/s (although this is sensitive to AGN variability), and leads to smaller fractions of AGN in massive galaxies than in the observations at z<=2. We find that all the simulations fail at producing a number density of AGN in good agreement with observational constraints for both luminous (L_{x, 2-10 keV}~10^43-10^45 erg/s) and fainter (L_{x, 2-10 keV}~10^42-10^43 erg/s) AGN, and at both low and high redshift. These differences can aid us in improving future BH and galaxy subgrid modeling in simulations. Upcoming X-ray missions (e.g., Athena, AXIS, and LynX) will bring faint AGN to light and new powerful constraints. After accounting for AGN obscuration, we find that the predicted number density of detectable AGN in future surveys spans at least one order of magnitude across the simulations, at any redshift.

Published in MNRAS

References in corpus (36)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
• Properties of galaxies reproduced by a hydrodynamic simulation
• Simulating galaxy formation with black hole driven thermal and kinetic feedback
• Simba: Cosmological Simulations with Black Hole Growth and Feedback
• An Observational Determination of the Bolometric Quasar Luminosity Function
• Introducing the Illustris Project: the evolution of galaxy populations across cosmic time
• The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era
• Toward the Standard Population Synthesis Model of the X-Ray Background: Evolution of X-Ray Luminosity and Absorption Functions of Active Galactic Nuclei Including Compton-Thick Populations
• The Illustris simulation: the evolving population of black holes across cosmic time
• Cosmic X-ray Surveys of Distant Active Galaxies: The Demographics, Physics, and Ecology of Growing Supermassive Black Holes
• The close environments of accreting massive black holes are shaped by radiative feedback
• Faint AGNs at z>4 in the CANDELS GOODS-S field: looking for contributors to the reionization of the Universe
• Obscuration-dependent evolution of Active Galactic Nuclei
• The Current Status of Galaxy Formation
• Black Holes on FIRE: Stellar Feedback Limits Early Feeding of Galactic Nuclei
• High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-$L_{\ast }$ population
• X-ray Binary Luminosity Function Scaling Relations for Local Galaxies Based on Subgalactic Modeling
• Detailed Shape and Evolutionary Behavior of the X-ray Luminosity Function of Active Galactic Nuclei
• The cosmic growth of the active black hole population at 1<z<2 in zCOSMOS, VVDS and SDSS
• High redshift quasars in the COSMOS survey: the space density of z>3 X-ray selected QSOs
• The Hard X-Ray Luminosity Function of High-Redshift ($3<z\lesssim 5$) Active Galactic Nuclei
• X-ray Detected AGN in SDSS Dwarf Galaxies
• Galaxy gas as obscurer: II. Separating the galaxy-scale and nuclear obscurers of Active Galactic Nuclei
• Black Hole -- Galaxy Correlations in Simba
• The Origin of Line Emission in Massive z~2.3 Galaxies: Evidence for Cosmic Downsizing of AGN Host Galaxies
• The deepest X-ray view of high-redshift galaxies: constraints on low-rate black-hole accretion
• Constraining the UV emissivity of AGN throughout cosmic time via X-ray surveys
• Black hole feeding and feedback: the physics inside the "subgrid"
• Black hole mass estimation for Active Galactic Nuclei from a new angle
• The Dependence of AGN Activity on Environment in SDSS
• The Chandra COSMOS Legacy survey: the z>3 sample
• Co-evolution of black hole accretion and star formation in galaxies up to z=3.5
• The X-ray luminosity function of AGN at z~3
• Compton-thick AGN and the Synthesis of the Cosmic X-ray Background: the Suzaku Perspective

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• COSMOS2020: The Galaxy Stellar Mass Function: the assembly and star formation cessation of galaxies at $0.2<z\le 7.5$
• The ASTRID simulation: the evolution of Supermassive Black Holes
• Overview of the Advanced X-ray Imaging Satellite (AXIS)
• Two can play at that game: constraining the role of supernova and AGN feedback in dwarf galaxies with cosmological zoom-in simulations
• Co-evolution of massive black holes and their host galaxies at high redshift: discrepancies from six cosmological simulations and the key role of JWST
• Population statistics of intermediate mass black holes in dwarf galaxies using the NewHorizon simulation
• Galaxy fields of LISA massive black hole mergers in a simulated Universe
• Probing the $z\gtrsim 6$ quasars in a universe with IllustrisTNG physics: Impact of gas-based black hole seeding models
• Mapping the Growth of Supermassive Black Holes as a Function of Galaxy Stellar Mass and Redshift
• The interconnection between galaxy mergers, AGN activity and rapid quenching of star formation in simulated post-merger galaxies
• AGN Feedback in Groups and Clusters of Galaxies
• Modelling the accretion and feedback of supermassive black hole binaries in gas-rich galaxy mergers
• AGN X-ray luminosity function and absorption function in the Early Universe ($3\le z\le 6$)
• Properties and merger signatures of galaxies hosting LISA coalescing massive black hole binaries
• Evidence for non-merger co-evolution of galaxies and their supermassive black holes
• Halo Scaling Relations and Hydrostatic Mass Bias in the Simba Simulation From Realistic Mock X-ray Catalogues
• Questioning Planck-selected star-forming high-redshift galaxy protoclusters and their fate
• An Enhanced Massive Black Hole Occupation Fraction Predicted in Cluster Dwarf Galaxies
• Surveying the onset and evolution of supermassive black holes at high-z with AXIS
• Maximal X-ray feedback in the pre-reionization universe
• Accretion onto supermassive and intermediate mass black holes in cosmological simulations
• Black holes at cosmic dawn in the redshifted 21cm signal of HI
• Is GN-z11 powered by a super-Eddington massive black hole?
• The ASTRID Simulation at z=0: From Massive Black Holes to Large-scale Structure
• Cosmological Simulation of Galaxy Groups and Clusters-II: Studying Different Modes of Feedback through X-ray Observations
• Premature supermassive black hole mergers in cosmological simulations of structure formation
• Large-scale geometry and topology of gas fields: Effects of AGN and stellar feedback
• High-redshift AGN population in radiation-hydrodynamics simulations
• X-ray stacking reveals average SMBH accretion properties of star-forming galaxies and their cosmic evolution over 4 <~ z <~ 7
• The brightest X-ray AGNs at redshift $3\lesssim z\lesssim 6$
• Back to basics: Little Red Dots as galaxies and dust-obscured AGNs in a synthetic NIRCam sky simulated with L-GalaxiesBH
• Cosmological simulations predict that AGN preferentially live in gas-rich, star-forming galaxies despite effective feedback
• Identification of high-redshift X-ray active galactic nuclei in the 4XMM-DR11 serendipitous catalogue using DES data: Comparative analysis with optically-selected QSOs
• Galaxy and black hole coevolution in dark matter haloes not captured by cosmological simulations
• The black hole population in low-mass galaxies in large-scale cosmological simulations