Evolution of growing black holes in axisymmetric galaxy cores

Abstract

NBody realizations of axisymmetric collisional galaxy cores (e.g. M32, M33, NGC205, Milky Way) with embedded growing black holes are presented. Stars which approach the disruption sphere are disrupted and accreted to the black hole. We measure the zone of influence of the black hole and disruption rates in relaxation time scales. We show that secular gravitational instabilities dominate the initial core dynamics, while the black hole is small and growing due to consumption of stars. Later, the black hole potential dominates the core, and loss cone theory can be applied. Our simulations show that central rotation in galaxies can not be neglected for relaxed systems, and compare and discuss our results with the standard theory of spherically symmetric systems.

15 pages, 7 figures,accepted by MNRAS

References in corpus (16)

• A Compact Supermassive Binary Black Hole System
• A massive binary black-hole system in OJ287 and a test of general relativity
• The structure of the nuclear stellar cluster of the Milky Way
• Equal- and unequal-mass mergers of disk and elliptical galaxies with black holes
• Performance Analysis of Direct N-Body Algorithms on Special-Purpose Supercomputers
• Self consistent model for the evolution of eccentric massive black hole binaries in stellar environments: implications for gravitational wave observations
• Feedback from central black holes in elliptical galaxies. I: models with either radiative or mechanical feedback but not both
• The ACS Fornax Cluster Survey. II. The Central Brightness Profiles of Early-Type Galaxies: A Characteristic Radius on Nuclear Scales and the Transition from Central Luminosity Deficit to Excess
• Growing Massive Black Hole Pairs in Minor Mergers of Disk Galaxies
• Dynamics of galaxy cores and supermassive black holes
• Red giant stellar collisions in the Galactic Centre
• Massive perturbers and the efficient merger of binary massive black holes
• Comparative study between N-body and Fokker-Planck simulations for rotating star clusters: I. Equal-mass system
• Contribution of Stellar Tidal Disruptions to the X-Ray Luminosity Function of Active Galaxies
• Tidal Disruption of Stellar Objects by Hard Supermassive Black Hole Binaries
• The ACS Fornax Cluster Survey. IV. Deprojection of the Surface Brightness Profiles of Early-Type Galaxies in the Virgo and Fornax Clusters: Investigating the "Core/Power-Law Dichotomy"

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• The old nuclear star cluster in the Milky Way: dynamics, mass, statistical parallax, and black hole mass
• Star-disc interaction in galactic nuclei: orbits and rates of accreted stars
• The loss cone problem in axisymmetric nuclei
• Black Hole Binaries in Galactic Nuclei and Gravitational Wave Sources
• Interaction of Recoiling Supermassive Black Holes with Stars in Galactic Nuclei
• The impact of stellar evolution on rotating star clusters: the gravothermal-gravogyro catastrophe and the formation of a bar of black holes
• The Link Between Ejected Stars, Hardening and Eccentricity Growth of Super Massive Black Holes in Galactic Nuclei
• SMBH in Galactic Nuclei with Tidal Disruption of Stars
• Enhanced accretion rates of stars on Super-massive Black Holes by star-disk interactions in galactic nuclei
• NGC 6240 Supermassive Black Hole Binary dynamical evolution based on Chandra data
• Supermassive Black Holes in Galactic Nuclei with Tidal Disruption of Stars: Paper II - Axisymmetric Nuclei
• Exploring the origin of stars on bound and unbound orbits causing tidal disruption events
• Evolution of star clusters with initial bulk rotation via N-body simulations
• Self-consistent Solutions of Evolving Nuclear Star Clusters with Two-Dimensional Monte-Carlo Dynamical Simulations
• The evolution of a supermassive binary black hole in an non-spherical nuclear star cluster
• Direct N-body simulations of rotating and extremely massive Population III star clusters