Forming circumnuclear disks and rings in galactic nuclei: a competition between supermassive black hole and nuclear star cluster
arXiv:1807.09780 · doi:10.3847/1538-4357/aad414
Abstract
We investigate the formation of circumnuclear gas structures from the tidal disruption of molecular clouds in galactic nuclei, by means of smoothed particle hydrodynamics simulations. We model galactic nuclei as composed of a supermassive black hole (SMBH) and a nuclear star cluster (NSC) and consider different mass ratios between the two components. We find that the relative masses of the SMBH and the NSC have a deep impact on the morphology of the circumnuclear gas. Extended disks form only inside the sphere of influence of the SMBH. In contrast, compact rings naturally form outside the SMBH's sphere of influence, where the gravity is dominated by the NSC. This result is in agreement with the properties of the Milky Way's circumnuclear ring, which orbits outside the SMBH sphere of influence. Our results indicate that compact circumnuclear rings can naturally form outside the SMBH sphere of influence.
arXiv commentAccepted for publication in ApJ. 12 pages, 6 figures, 3 tables. Comments welcome
References in corpus (104)
- Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
- Monitoring stellar orbits around the Massive Black Hole in the Galactic Center
- Closest Star Seen Orbiting the Supermassive Black Hole at the Centre of the Milky Way
- Nonlinear Outcome of Gravitational Instability in Cooling, Gaseous Disks
- Modelling Accretion in Protobinary Systems
- The First Measurement of Spectral Lines in a Short-Period Star Bound to the Galaxy's Central Black Hole: A Paradox of Youth
- The Two Young Star Disks in the Central Parsec of the Galaxy: Properties, Dynamics and Formation
- Gasoline: An adaptable implementation of TreeSPH
- SINFONI in the Galactic Center: young stars and IR flares in the central light month
- The Stellar Cusp Around the Supermassive Black Hole in the Galactic Center
- The ACS Virgo Cluster Survey. VIII. The Nuclei of Early-Type Galaxies
- Accretion Disks Around Young Objects. III. Grain Growth
- An Update on Monitoring Stellar Orbits in the Galactic Center
- The orbit of the star S2 around SgrA* from VLT and Keck data
- Selfgravity and QSO disks
- Modeling Collapse and Accretion in Turbulent Gas Clouds: Implementation and Comparison of Sink Particles in AMR and SPH
- Stellar disk in the galactic center -- a remnant of a dense accretion disk?
- Stellar dynamics in the central arcsecond of our galaxy
- An HST Census of Nuclear Star Clusters in Late-Type Spiral Galaxies: I. Observations and Image Analysis
- Inviscid SPH
- Evidence for Warped Disks of Young Stars in the Galactic Center
- The Two Modes of Gas Giant Planet Formation
- The nuclear star cluster of the Milky Way: proper motions and mass
- Gasoline2: A Modern SPH Code
- Clumps in the Outer Disk by Disk Instability: Why They are Initially Gas Giants and the Legacy of Disruption
- HST STIS spectroscopy of the triple nucleus of M31: two nested disks in Keplerian rotation around a Supermassive Black Hole
- The structure of the nuclear stellar cluster of the Milky Way
- Multi-physics simulations using a hierarchical interchangeable software interface
- Quantifying the Coexistence of Massive Black Holes and Dense Nuclear Star Clusters
- A HST Census of Nuclear Star Clusters in Late-Type Spiral Galaxies: II. Cluster Sizes and Structural Parameter Correlations
- HCN and HCO+ Observations of the Galactic Circumnuclear Disk
- The Astrophysical Multipurpose Software Environment
- The Coincidence of Nuclear Star Clusters and Active Galactic Nuclei
- Surface Brightness Profile of the Milky Way's Nuclear Star Cluster
- The old nuclear star cluster in the Milky Way: dynamics, mass, statistical parallax, and black hole mass
- A multiphysics and multiscale software environment for modeling astrophysical systems
- Masses and Scaling Relations for Nuclear Star Clusters, and their Coexistence with Central Black Holes
- Simulations of star formation in a gaseous disc around sgr A* - a failed AGN
- Star Formation Around Super-Massive Black Holes
- An Eccentric Disk Model for the Nucleus of M31
- Properties of the Remnant Clockwise Disk of Young Stars in the Galactic Center
- Nuclear star clusters in 228 spiral galaxies in the HST/WFPC2 archive: catalogue and comparison to other stellar systems
- Resolving mixing in Smoothed Particle Hydrodynamics
- On the Origin of Nuclear Star Clusters in Late Type Spiral Galaxies
- Large scale kinematics and dynamical modelling of the Milky Way nuclear star cluster
- The central parsecs of Centaurus A: High Excitation Gas, a Molecular Disk, and the Mass of the Black Hole
- Self-gravitating accretion disk in Sgr A* few million years ago: was Sgr A* a failed quasar?
- Nearby Early-Type Galactic Nuclei at High Resolution: Dynamical Black Hole and Nuclear Star Cluster Mass Measurements
- Parsec-scale dust distributions in Seyfert galaxies - Results of the MIDI AGN snapshot survey
- The HST/ACS Coma Cluster Survey. X. Nuclear star clusters in low-mass early-type galaxies: scaling relations
- Simulations of the formation of stellar discs in the Galactic centre via cloud-cloud collisions
- Stellar Populations in the Central 0.5 pc of the Galaxy I: A New Method for Constructing Luminosity Functions and Surface-Density Profiles
- TURBULENCE IN MOLECULAR CLOUDS
- A black-hole mass measurement from molecular gas kinematics in NGC4526
- The distribution of old stars around the Milky Way's central black hole I: Star counts
- On the Formation of Compact Stellar Disks Around Sgr A*
- The Nuclear Cluster of the Milky Way: Total Mass and Luminosity (long version)
- KMOS view of the Galactic Centre - II. Metallicity distribution of late-type stars
- KMOS view of the Galactic Centre I. Young stars are centrally concentrated
- The evolution of embedded star clusters
- The Circumnuclear Material in the Galactic Centre: A Clue to the Accretion Process
- WISDOM Project - II: Molecular gas measurement of the supermassive black hole mass in NGC4697
- In situ formation of SgrA* stars via disk fragmentation: parent cloud properties and thermodynamics
- The Structure of Nuclear Star Clusters in Nearby Late-type Spiral Galaxies from Hubble Space Telescope Wide Field Camera 3 Imaging
- The Excitation of HCN and HCO+ in the Galactic Center Circumnuclear Disk
- Molecular Tracers of the Central 12 pc of the Galactic Center
- Radio Continuum Observations of the Galactic Center: Photoevaporative Proplyd-like Objects near Sgr A*
- Rotation in young massive star clusters
- WISDOM Project - I: Black Hole Mass Measurement Using Molecular Gas Kinematics in NGC 3665
- Star formation in accretion discs : from the Galactic Center to Active Galactic Nuclei
- Early evolution of embedded clusters
- WISDOM Project - III: Molecular gas measurement of the supermassive black hole mass in the barred lenticular galaxy NGC4429
- Far-Infrared Spectroscopy of the Galactic Center. Hot Molecular Gas: Shocks versus Radiation near SgrA*
- Measurement of the Black Hole Mass in NGC 1332 from ALMA Observations at 0.044 Arcsecond Resolution
- Chemical Features in the Circumnuclear Disk of the Galactic Center
- A Measurement of the Black-Hole Mass in NGC 1097 using ALMA
- Simulations of Direct Collisions of Gas Clouds with the Central Black Hole
- The Cluster of Blue Stars Surrounding the M31 Nuclear Black Hole
- Stellar dynamical evidence against a cold disc origin for stars in the Galactic Centre
- Milky Way Supermassive Black Hole: Dynamical Feeding from the Circumnuclear Environment
- ISM Processing in the Inner 20 pc in Galactic center
- Prospects for measuring supermassive black hole masses with future extremely large telescopes
- Misaligned streamers around a galactic centre black hole from a single cloud's infall
- A figure of merit for black hole mass measurements with molecular gas
- Disentangling the Circumnuclear Environs of Centaurus A: III. An Inner Molecular Ring, Nuclear Shocks and the CO to warm H2 interface
- ALMA Observations of the Galactic Center: SiO Outflows and High Mass Star Formation near Sgr A*
- A Young Super Star Cluster in the Nuclear Region of NGC 253
- Toward Precision Black Hole Masses with ALMA: NGC 1332 as a Case Study in Molecular Disk Dynamics
- HST Observations of the Stellar Distribution Near Sgr A*
- ALMA Detection of Bipolar Outflows: Evidence for Low Mass Star Formation within 1pc of Sgr A*
- Modelling the formation of the circumnuclear ring in the Galactic centre
- An analysis of HCN observations of the Circumnuclear Disk at the galactic centre
- Gas Accretion in the M32 Nucleus: Past & Present
- Physical Contact between the +20 km/s Cloud and the Galactic Circumnuclear Disk
- Hot Molecular Gas in the Circumnuclear Disk
- Three-dimensional Keplerian orbit-superposition models of the nucleus of M31
- Probing the nuclear star cluster of galaxies with ELTs
- A Slowly Precessing Disk in the Nucleus of M31 as the Feeding Mechanism for a Central Starburst
- Discovery of an Halpha emitting disk around the supermassive black hole of M31
- Black hole mass measurement using molecular gas kinematics: what ALMA can do
- The influence of dense gas rings on the dynamics of a stellar disk in the Galactic center
- The molecular H2 emission and the stellar kinematics in the nuclear region of the Sombrero galaxy
- ALMA and VLA Observations: Evidence for Ongoing Low-mass Star Formation near Sgr A*
- Odin observations of ammonia in the Sgr A +50 km/s Cloud and Circumnuclear Disk
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- Simulations of the Milky Way's central molecular zone -- I. Gas dynamics
- WISDOM project - IV. A molecular gas dynamical measurement of the supermassive black hole mass in NGC 524
- The Circumnuclear Disk Revealed by ALMA. I. Dense Clouds and Tides in the Galactic Center
- The Fornax 3D project: dust mix and gas properties in the center of early-type galaxy FCC 167
- High-speed molecular cloudlets around the Galactic Center supermassive black hole
- Effects of turbulence in the Circumnuclear Disk
- Dusty plasma in active galactic nuclei
- Demographics of Tidal Disruption Events with L-Galaxies: I. Volumetric TDE rates and the abundance of Nuclear Star Clusters
- Evolution of eccentric stellar disks around supermassive black holes: the complex disk disruption dynamics and the milliparsec stars
- A common origin for the circumnuclear disc and the nearby molecular clouds in the Galactic Centre
- Feeding of active galactic nuclei by dynamical perturbations
- Improving Black Hole Accretion Treatment in Hydrodynamical Simulations
- Gas Inflow and Star Formation near Supermassive Black Holes: The Role of Nuclear Activity
- Mass flows in the Galactic Center by supernovae of the circumnuclear disk
- Resonant Dynamical Friction in Nuclear Star Clusters: Rapid Alignment of an Intermediate-mass Black Hole with a Stellar Disk
- Gravitational Instability of Gas-Dust Circumnuclear Disks in Galaxies