The lifetime of binary black holes in Sérsic galaxy models

Abstract

In the local universe, black holes of $10^{5-6}$ M${}_{\odot }$ are hosted in galaxies displaying a variety of stellar profiles and morphologies. These black holes are the anticipated targets of LISA, the Laser Interferometer Space Antenna that will detect the low-frequency gravitational-wave signal emitted by binary black holes in this mass interval. In this paper, we infer upper limits on the lifetime of binary black holes of $10^{5-6}$ M${}_{\odot }$ and up to $10^8$ M${}_{\odot }$, forming in galaxy mergers, exploring two underlying stellar density profiles, by Dehnen and by Prugniel & Simien, and by exploiting local scaling relations between the mass of the black holes and several quantities of their hosts. We focus on the phase of the dynamical evolution when the binary is transitioning from the hardening phase ruled by the interaction with single stars to the phase driven by the emission of gravitational waves. We find that different stellar profiles predict very distinct trends with binary mass, with lifetimes ranging between fractions of a Gyr to more than 10 Gyr, and with a spread of about one order of magnitude, given by the uncertainties in the observed correlations, which are larger in the low-mass tail of the observed black hole population.

11 pages, 6 figures; published on MNRAS

References in corpus (26)

• Laser Interferometer Space Antenna
• 3D-HST+CANDELS: The Evolution of the Galaxy Size-Mass Distribution since $z=3$
• Rapid Formation of Supermassive Black Hole Binaries in Galaxy Mergers with Gas
• Observational evidence for intermediate-mass black holes
• Supermassive black hole binaries in gaseous and stellar circumnuclear discs: orbital dynamics and gas accretion
• Interaction of massive black hole binaries with their stellar environment: I. Ejection of hypervelocity stars
• Growth and activity of black holes in galaxy mergers with varying mass ratios
• Massive binary black holes in galactic nuclei and their path to coalescence
• Dynamical friction in constant density cores: a failure of the Chandrasekhar formula
• Black Holes in Pseudobulges and Spheroidals: A Change in the Black Hole-Bulge Scaling Relations at Low Mass
• From star clusters to dwarf galaxies: The properties of dynamically hot stellar systems
• Reconstructing the massive black hole cosmic history through gravitational waves
• The erratic dynamical life of black hole seeds in high-redshift galaxies
• The (black hole)-bulge mass scaling relation at low masses
• Growing Massive Black Hole Pairs in Minor Mergers of Disk Galaxies
• Shocks and angular momentum flips: a different path to feeding the nuclear regions of merging galaxies
• Orbital Decay of Supermassive Black Hole Binaries in Clumpy Multiphase Merger Remnants
• The Pairing of Accreting Massive Black Holes in Multiphase Circumnuclear Disks: the Interplay between Radiative Cooling, Star Formation, and Feedback Processes
• The birth of a supermassive black hole binary
• Exploring SMBH Assembly with Semi-analytic Modelling
• Galaxy Rotation and Supermassive Black Hole Binary Evolution
• 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"
• Clumpy high-z galaxies as a testbed for feedback-regulated galaxy formation
• Rates of capture of stars by supermassive black holes in non-spherical galactic nuclei
• Hubble Space Telescope Imaging of the Active Dwarf Galaxy RGG 118
• A Full Loss Cone For Triaxial Galaxies

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• The Quest for Dual and Binary Supermassive Black Holes: A Multi-Messenger View
• Black hole mergers from dwarf to massive galaxies with the NewHorizon and Horizon-AGN simulations
• The low-end of the black hole mass function at cosmic dawn
• Massive black hole evolution models confronting the n-Hz amplitude of the stochastic gravitational wave background
• Unveiling the population of dual- and lensed- AGNs at sub-arcsec separations
• Enhancement of the tidal disruption event rate in galaxies with a nuclear star cluster: from dwarfs to ellipticals
• Unveiling early black hole growth with multi-frequency gravitational wave observations
• HYPerluminous quasars at the Epoch of ReionizatION (HYPERION). A new regime for the X-ray nuclear properties of the first quasars
• 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
• Massive Black Hole Mergers with Orbital Information: Predictions from the ASTRID Simulation
• Accelerated orbital decay of supermassive black hole binaries in merging nuclear star clusters
• Galaxy fields of LISA massive black hole mergers in a simulated Universe
• GW190521 from the Merger of Ultra-Dwarf Galaxies
• Properties and merger signatures of galaxies hosting LISA coalescing massive black hole binaries
• The (Black Hole Mass)-(Spheroid Stellar Density) Relations: $M_{\mathrm{BH}}$--$\mu$ (and $M_{\mathrm{BH}}$--$\Sigma$) and $M_{\mathrm{BH}}$--$\rho$
• Evaluating the Merger Rate of Binary Black Holes from Direct Captures and Third-Body Soft Interactions Using the Milky Way Globular Clusters
• Searching for clues of past binary supermassive black hole mergers in nuclear star clusters
• Astrophysics with the Laser Interferometer Space Antenna
• Properties of loss cone stars in a cosmological galaxy merger remnant
• Probing the mass relation between supermassive black holes and dark matter halos at high redshifts by gravitational wave experiments
• Identifying massive black hole binaries via light curve variability in optical time-domain surveys
• A Population Study for Searching Supermassive Binary Black Holes in Active Galactic Nuclei: Continuum Spectral Features and Periodic Variabilities
• Black Hole merger rates in the first billion years in light of JWST data