Evidence for non-merger co-evolution of galaxies and their supermassive black holes

Abstract

Recent observational and theoretical studies have suggested that supermassive black holes (SMBHs) grow mostly through non-merger (`secular') processes. Since galaxy mergers lead to dynamical bulge growth, the only way to observationally isolate non-merger growth is to study galaxies with low bulge-to-total mass ratio (e.g. B/T < 10%). However, bulge growth can also occur due to secular processes, such as disk instabilities, making disk-dominated selections a somewhat incomplete way to select merger-free systems. Here we use the Horizon-AGN simulation to select simulated galaxies which have not undergone a merger since z = 2, regardless of bulge mass, and investigate their location on typical black hole-galaxy scaling relations in comparison to galaxies with merger dominated histories. While the existence of these correlations has long been interpreted as co-evolution of galaxies and their SMBHs driven by galaxy mergers, we show here that they persist even in the absence of mergers. We find that the correlations between SMBH mass and both total mass and stellar velocity dispersion are independent of B/T ratio for both merger-free and merger-dominated galaxies. In addition, the bulge mass and SMBH mass correlation is still apparent for merger-free galaxies, the intercept for which is dependent on B/T. Galaxy mergers reduce the scatter around the scaling relations, with merger-free systems showing broader scatter. We show that for merger-free galaxies, the co-evolution is dominated by radio-mode feedback, and suggest that the long periods of time between galaxy mergers make an important contribution to the co-evolution between galaxies and SMBHs in all galaxies.

arXiv commentRJS and RSB are joint first authors. 12 pages, 7 figures. Accepted 2023 February 13. Received 2023 February 2; in original form 2022 November 24

References in corpus (88)

• Astropy: A Community Python Package for Astronomy
• The Sloan Digital Sky Survey: Technical Summary
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• The Global Schmidt Law in Star Forming Galaxies
• The Demography of Massive Dark Objects in Galaxy Centres
• Stellar Masses and Star Formation Histories for 10^5 Galaxies from the Sloan Digital Sky Survey
• Cosmological Hydrodynamics with Adaptive Mesh Refinement: a new high resolution code called RAMSES
• The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity
• On the Black Hole Mass - Bulge Mass Relation
• The M-sigma and M-L Relations in Galactic Bulges and Determinations of their Intrinsic Scatter
• Some Aspects of Measurement Error in Linear Regression of Astronomical Data
• The Star Formation History of Field Galaxies
• Revisiting the Scaling Relations of Black Hole Masses and Host Galaxy Properties
• Simulating galaxy formation with black hole driven thermal and kinetic feedback
• The Co-Evolution of Galaxies and Supermassive Black Holes: Insights from Surveys of the Contemporary Universe
• Simba: Cosmological Simulations with Black Hole Growth and Feedback
• A Physical Model for the Co-evolution of QSOs and of their Spheroidal Hosts
• Dancing in the dark: galactic properties trace spin swings along the cosmic web
• Relations Between Central Black Hole Mass and Total Galaxy Stellar Mass in the Local Universe
• Intermediate-Mass Black Holes
• Spectral Classification and Redshift Measurement for the SDSS-III Baryon Oscillation Spectroscopic Survey
• The Illustris simulation: the evolving population of black holes across cosmic time
• Dynamical Friction in a Gaseous Medium
• Stellar Feedback in Galaxies and the Origin of Galaxy-scale Winds
• The Horizon-AGN simulation: morphological diversity of galaxies promoted by AGN feedback
• Quantifying the Fragility of Galactic Disks in Minor Mergers
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: II. Formation of Red Ellipticals
• CANDELS: Constraining the AGN-Merger Connection with Host Morphologies at z~2
• Self-regulated growth of supermassive black holes by a dual jet/heating AGN feedback mechanism: methods, tests and implications for cosmological simulations
• The origin and implications of dark matter anisotropic cosmic infall on ~L* haloes
• Black Hole Demographics from the M(BH)-sigma Relation
• The non-causal origin of the black hole-galaxy scaling relations
• Bulgeless Giant Galaxies Challenge our Picture of Galaxy Formation by Hierarchical Clustering
• The SINFONI Black Hole Survey: The Black Hole Fundamental Plane revisited and the paths of (co-) evolution of supermassive black holes and bulges
• On the onset of galactic winds in quiescent star forming galaxies
• How Mergers May Affect The Mass Scaling Relations Between Black Holes, Galaxies, and Other Gravitationally Bound Systems
• The cosmic evolution of massive black holes in the Horizon-AGN simulation
• Supermassive black holes do not correlate with galaxy disks or pseudobulges
• Building Merger Trees from Cosmological N-body Simulations
• Precise Black Hole Masses From Megamaser Disks: Black Hole-Bulge Relations at Low Mass
• Unification of the Fundamental Plane and Super-Massive Black Holes Masses
• The black hole mass -- stellar velocity dispersion correlation: bulges versus pseudobulges
• The Horizon-AGN simulation: evolution of galaxy properties over cosmic time
• Galaxy Zoo: The fundamentally different co-evolution of supermassive black holes and their early- and late-type host galaxies
• The mass relations between supermassive black holes and their host galaxies at 1<z<2 with HST-WFC3
• Morphologies of z~0.7 AGN Host Galaxies in CANDELS: No trend of merger incidence with AGN luminosity
• Supermassive black holes in cosmological simulations I: M_BH-M_star relation and black hole mass function
• Host Galaxy Properties of the Swift BAT Ultra Hard X-ray Selected AGN
• Dark matter haloes determine the masses of supermassive black holes
• Cosmic evolution of stellar quenching by AGN feedback: clues from the Horizon-AGN simulation
• Secular evolution and a non-evolving black hole to galaxy mass ratio in the last 7 Gyr
• The role of mergers in driving morphological transformation over cosmic time
• A diversity of progenitors and histories for isolated spiral galaxies
• Galaxy morphology in the LambdaCDM cosmology
• Black Hole Mass Scaling Relations for Early-Type Galaxies: $M_{BH}$-$M_{\ast ,sph}$ and $M_{BH}$-$M_{\ast ,gal}$
• Hot gas in massive halos drives both mass quenching and environment quenching
• Black Hole Mass Scaling Relations for Spiral Galaxies. I. $M_{\mathrm{BH}}$-$M_{\ast ,\mathrm{sph}}$
• Systematic Uncertainties in Stellar Mass Estimation for Distinct Galaxy Populations
• Black Hole - Galaxy Scaling Relationships for Active Galactic Nuclei with Reverberation Masses
• The Host Galaxies of Low-mass Black Holes
• Galaxy Zoo: Bulgeless Galaxies With Growing Black Holes
• Galaxy mergers in EAGLE do not induce a significant amount of black hole growth yet do increase the rate of luminous AGN
• Recalibration of the $M_{BH}-{\sigma }_{\star }$ Relation for AGN
• Populating the low-mass end of the $M_{\mathrm{BH}}-{\sigma }_{\ast }$ relation
• Supermassive black holes in cosmological simulations II: the AGN population and predictions for upcoming X-ray missions
• A census of ionized gas outflows in type 1 AGNs: gas outflows in AGNs. V
• Cosmological simulations of black hole growth II: how (in)significant are merger events for fuelling nuclear activity?
• Galaxies grow their bulges and black holes in diverse ways
• A local baseline of the black hole mass scaling relations for active galaxies. IV. Correlations between $M_{\mathrm{BH}}$ and host galaxy $\sigma$, stellar mass, and luminosity
• The growth of disks and bulges during hierarchical galaxy formation. I: fast evolution vs secular processes
• The Mass Of Black Holes in the Nuclei Of Spirals
• Normal black holes in bulge-less galaxies: the largely quiescent, merger-free growth of black holes over cosmic time
• AGN-Host Galaxy Connection: Morphology and Colours of X-ray Selected AGN at z < 2
• Kinetic or thermal AGN feedback in simulations of isolated and merging disk galaxies calibrated by the M-sigma relation
• Supermassive black holes in disk-dominated galaxies outgrow their bulges and co-evolve with their host galaxies
• The Relative Role of Galaxy Mergers and Cosmic Flows in Feeding Black Holes
• Galaxy Zoo: Evidence for rapid, recent quenching within a population of AGN host galaxies
• Obscured GOODS AGN and Their Host Galaxies at z < 1.25: The Slow Black Hole Growth Phase
• The Evolutionary Pathways of Disk-, Bulge-, and Halo-dominated Galaxies
• The Diverse Morphology, Stellar Population, and Black Hole Scaling Relations of the Host Galaxies of Nearby Quasars
• Secularly powered outflows from AGN: the dominance of non-merger driven supermassive black hole growth
• Effects of Inclination on Measuring Velocity Dispersion and Implications for Black Holes
• Kiloparsec-scale AGN Outflows and Feedback in Merger-Free Galaxies
• Supermassive black holes in merger-free galaxies have higher spins which are preferentially aligned with their host galaxy
• A Morphological Study on Galaxies Hosting Optical Variability-Selected AGNs in the COSMOS Field
• Stellar Populations in a semi-analytic model I: bulges of Milky Way-like galaxies
• A Near-Infrared look at AGN Feedback in Bulgeless Galaxies

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