Identifying supermassive black hole recoil in elliptical galaxies

Abstract

We study stellar core growth in simulations of merging massive ($M_{\star }>10^{11}{\mathrm{M}}_{\odot }$) elliptical galaxies by a supermassive black hole (SMBH) displaced by gravitational wave induced recoil velocity. With controlled, dense sampling of the SMBH recoil velocity, we find the core radius originally formed by SMBH binary scouring can grow by a factor of 2-3 when the recoil velocity exceeds $\sim 50$ per cent of the central escape velocity, and the mass deficit grows by up to a factor of $\sim 4$. Using Bayesian inference we predict the distribution of stellar core sizes formed through this process to peak at $\sim 1\mathrm{kpc}$. An orbital decomposition of stellar particles within the core reveals that radial orbits dominate over tube orbits when the recoil velocity exceeds the velocity dispersion of the core, whereas tube orbits dominate for the lowest recoil kicks. A change in orbital structure is reflected in the anisotropy parameter, with a central tangential bias present only for recoil velocities less than the local stellar velocity dispersion. Emulating current integral field unit observations of the stellar line-of-sight velocity distribution, we uncover a distinct signature in the Gauss-Hermite symmetric deviation coefficient $h_4$ that uniquely constrains the core size due to binary scouring. This signature is insensitive to the later evolution of the stellar mass distribution due to SMBH recoil. Our results provide a novel method to estimate the SMBH recoil magnitude from observations of local elliptical galaxies, and implies these galaxies primarily experienced recoil velocities less than the stellar velocity dispersion of the core.

27 pages, 21 figures, as accepted

References in corpus (122)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• Practical Bayesian model evaluation using leave-one-out cross-validation and WAIC
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• Rank-normalization, folding, and localization: An improved $\hat{R}$ for assessing convergence of MCMC
• On the Black Hole Mass - Bulge Mass Relation
• The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
• Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
• Searching for the nano-Hertz stochastic gravitational wave background with the Chinese Pulsar Timing Array Data Release I
• Visualization in Bayesian workflow
• The Inner Structure of LambdaCDM Halos I: A Numerical Convergence Study
• Minor mergers and the size evolution of elliptical galaxies
• Structure and Formation of Elliptical and Spheroidal Galaxies
• The Two Phases of Galaxy Formation
• The SAURON project -- IX. A kinematic classification for early-type galaxies
• The Centers of Early-Type Galaxies with HST. IV. Central Parameter Relations
• Theoretical Challenges in Galaxy Formation
• Formation of Galactic Nuclei
• The SAURON project -- X. The orbital anisotropy of elliptical and lenticular galaxies: revisiting the (V/sigma,epsilon) diagram with integral-field stellar kinematics
• The Relation Between Compact, Quiescent High Redshift Galaxies and Massive Nearby Elliptical Galaxies: Evidence for Hierarchical, Inside-Out Growth
• Large Merger Recoils and Spin Flips From Generic Black-Hole Binaries
• The dynamical evolution of massive black hole binaries - I. Hardening in a fixed stellar background
• Structure and Kinematics of Early-Type Galaxies from Integral-Field Spectroscopy
• Total recoil: the maximum kick from nonspinning black-hole binary inspiral
• The stellar mass assembly of galaxies in the Illustris simulation: growth by mergers and the spatial distribution of accreted stars
• The ATLAS3D project - II. Morphologies, kinemetric features and alignment between photometric and kinematic axes of early-type galaxies
• Statistical Properties of Collisionless Equal- and Unequal-Mass Merger Remnants of Disk Galaxies
• Simulating cosmic structure formation with the GADGET-4 code
• Consequences of gravitational radiation recoil
• Internal and External Alignment of the Shapes and Angular Momenta of LCDM Halos
• Supermassive recoil velocities for binary black-hole mergers with antialigned spins
• Dynamical Modeling of Velocity Profiles: The Dark Halo Around the Elliptical Galaxy NGC2434
• The ATLAS${}^{3D}$ project - XXV: Two-dimensional kinematic analysis of simulated galaxies and the cosmological origin of fast and slow rotators
• Forming Compact Massive Galaxies
• Efficient Merger of Binary Supermassive Black Holes in Non-Axisymmetric Galaxies
• The SINFONI Black Hole Survey: The Black Hole Fundamental Plane revisited and the paths of (co-) evolution of supermassive black holes and bulges
• Massive Black Hole Binary Evolution
• A New Empirical Model for the Structural Analysis of Early-type Galaxies and a Critical Review of the Nuker Model
• The Formation of Massive, Compact Galaxies at z=2 in the Illustris Simulation
• Dissipation and Extra Light in Galactic Nuclei: II. 'Cusp' Ellipticals
• Orbital Parameters of Merging Dark Matter Halos
• Equal- and unequal-mass mergers of disk and elliptical galaxies with black holes
• Ejection of Supermassive Black Holes from Galaxy Cores
• A recoiling supermassive black hole in the quasar SDSSJ092712.65+294344.0?
• Unification of the Fundamental Plane and Super-Massive Black Holes Masses
• Star-Forming Galaxies at Cosmic Noon
• Mass Deficits, Stalling Radii, and the Merger Histories of Elliptical Galaxies
• The dynamical evolution of massive black hole binaries - II. Self-consistent N-body integrations
• The Parkes Pulsar Timing Array Third Data Release
• The counterrotating core and the black hole mass of IC1459
• A chronicle of galaxy mass assembly in the EAGLE simulation
• The effect of gravitational-wave recoil on the demography of massive black holes
• Forming Early-Type Galaxies in LambdaCDM Simulations -I. Assembly histories
• The final-parsec problem in the collisionless limit
• Relaxation and Stripping: The Evolution of Sizes, Dispersions and Dark Matter Fractions in Major and Minor Mergers of Elliptical Galaxies
• Dissipation and Extra Light in Galactic Nuclei: III. 'Core' Ellipticals and 'Missing' Light
• A 17-billion-solar-mass black hole in a group galaxy with a diffuse core
• Recoiling Black Holes in Merging Galaxies: Relationship to AGN Lifetimes, Starbursts, and the M-sigma Relation
• Mapping stationary axisymmetric phase-space distribution functions by orbit libraries
• Hydrodynamics of galaxy mergers with supermassive black holes: is there a last parsec problem ?
• Binary black hole mergers: large kicks for generic spin orientations
• The Evolution of Central Group Galaxies in Hydrodynamical Simulations
• Gravitational recoil: signatures on the massive black hole population
• Effects of gravitational-wave recoil on the dynamics and growth of supermassive black holes
• Core Formation in Galactic Nuclei Due to Recoiling Black Holes
• The Dynamical Fingerprint of Core Scouring in Massive Elliptical Galaxies
• Collisionless loss-cone refilling: there is no final parsec problem
• Phase-space mixing and the merging of cusps
• Depleted Galaxy Cores and Dynamical Black Hole Masses
• Depleted cores, multi-component fits, and structural parameter relations for luminous early-type galaxies
• A Displaced Supermassive Black Hole in M87
• Orbital Structure of Collisionless Merger Remnants: On the Origin of Photometric and Kinematic Properties of Elliptical and S0 Galaxies
• A Brightest Cluster Galaxy with an Extremely Large Flat Core
• Post-Newtonian dynamical modeling of supermassive black holes in galactic-scale simulations
• Offset Active Galactic Nuclei as Tracers of Galaxy Mergers and Supermassive Black Hole Growth
• The formation of extremely diffuse galaxy cores by merging supermassive black holes
• Alignment of supermassive black hole binary orbits and spins
• Brownian Motion of Black Holes in Dense Nuclei
• Modeling the remnant mass, spin, and recoil from unequal-mass, precessing black-hole binaries: The Intermediate Mass Ratio Regime
• The Pairing of Accreting Massive Black Holes in Multiphase Circumnuclear Disks: the Interplay between Radiative Cooling, Star Formation, and Feedback Processes
• Recoiling Supermassive Black Holes: a search in the Nearby Universe
• Detecting and diagnosing prior and likelihood sensitivity with power-scaling
• Orbits Around Black Holes in Triaxial Nuclei
• The SAMI Galaxy Survey: The internal orbital structure and mass distribution of passive galaxies from triaxial orbit-superposition Schwarzschild models
• The diverse nature and formation paths of slow rotator galaxies in the EAGLE simulations
• Effects of post-Newtonian Spin Alignment on the Distribution of Black-Hole Recoils
• MSTAR -- a fast parallelised algorithmically regularised integrator with minimum spanning tree coordinates
• The simultaneous formation of cored, tangentially biased, and kinematically decoupled centers in massive early-type galaxies
• Spatially Offset Active Galactic Nuclei I: Selection and Spectroscopic Properties
• Stellar orbits in cosmological galaxy simulations: the connection to formation history and line-of-sight kinematics
• On the Origin of Density Cusps in Elliptical Galaxies
• SDSS1133: An Unusually Persistent Transient in a Nearby Dwarf Galaxy
• Formation of the largest galactic cores through binary scouring and gravitational wave recoil
• Signatures of the Many Supermassive Black Hole Mergers in a Cosmologically Forming Massive Early-Type Galaxy
• The fate of the Antennae galaxies
• Lyman-αabsorption beyond the disk of simulated spiral galaxies
• xGASS: The Impact of Photometric Bulges on the Scatter of HI Scaling Relations
• Galaxies with prolate rotation in Illustris
• The Contribution of In-situ and Ex-situ Star Formation in Early-Type Galaxies: MaNGA versus IllustrisTNG
• A candidate runaway supermassive black hole identified by shocks and star formation in its wake
• Defining the (Black Hole)-Spheroid Connection with the Discovery of Morphology-Dependent Substructure in the $M_{\mathrm{BH}}$--${\mathrm{n}}_{\mathrm{sph}}$ and $M_{\mathrm{BH}}$--${\mathrm{R}}_{\mathrm{e},\mathrm{sph}}$ Diagrams: New Tests for Advanced Theories and Realistic Simulations
• Defeating stochasticity: coalescence timescales of massive black holes in galaxy mergers
• SDSS 0956+5128: A Broad-line Quasar with Extreme Velocity Offsets
• Spatially-Offset AGN Candidates in the CLASS Survey
• SMART: A new implementation of Schwarzschild's Orbit Superposition technique for triaxial galaxies and its application to an N-body merger simulation
• A Potential Recoiling Supermassive Black Hole CXO J101527.2+625911
• The two phases of core formation -- orbital evolution in the centres of ellipticals with supermassive black hole binaries
• KETJU -- resolving small-scale supermassive black hole dynamics in GADGET-4
• The quest for the largest depleted galaxy core: supermassive black hole binaries and stalled in-falling satellites
• The SAMI Galaxy Survey: Environmental analysis of the orbital structures of passive galaxies
• Dynamical evolution of massive black holes in galactic-scale N-body simulations - introducing the regularized tree code "rVINE"
• Measuring supermassive black hole peculiar motion using H${}_2$O megamasers
• RABBITS -- I. The crucial role of nuclear star formation in driving the coalescence of supermassive black hole binaries
• Shape and kinematics of elliptical galaxies: evolution due to merging at z < 1.5
• Dynamics and spin alignment in massive, gravito-turbulent circumbinary discs around supermassive black hole binaries
• The isotropic center of NGC 5419 -- A core in formation?
• Detailed shapes of the line-of-sight velocity distributions in massive early-type galaxies from non-parametric spectral models
• The Bardeen-Petterson effect, disk breaking, and the spin orientations of supermassive black-hole binaries
• Stars or gas? Constraining the hardening processes of massive black-hole binaries with LISA
• 2MASX J00423991+3017515: An offset active galactic nucleus in an interacting system
• RABBITS -- II. The impact of AGN feedback on coalescing supermassive black holes in disc and elliptical galaxy mergers
• Core formation by binary scouring and gravitational wave recoil in massive elliptical galaxies

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• Wandering and escaping: recoiling massive black holes in cosmological simulations
• Where Have All the Little Red Dots Gone? Supermassive Black Hole Binary Dynamics and its Impact on Galaxy Properties
• First Light And Reionization Epoch Simulations (FLARES) -- XIX: Supermassive black hole mergers in the early Universe and their environmental dependence
• Rapid sinking and efficient mergers of supermassive black holes in compact high-redshift galaxies