Formation of Merging Stellar-Mass Black Hole Binaries by Gravitational Wave Emission in Active Galactic Nucleus Disks
arXiv:2310.03801 · doi:10.3847/1538-4357/ad284b
Abstract
Many stellar-mass Black Holes (sBHs) are expected to orbit supermassive black holes at galactic centers. For galaxies with Active Galactic Nuclei (AGN), it is likely that the sBHs reside in a disk. We study the formation of sBH binaries via gravitational wave emission in such disks. We examine analytically the dynamics of two sBHs orbiting a supermassive black hole, estimate the capture cross section, and derive the eccentricity distribution of bound binaries at different frequency bands. We find that the majority of the merging sBH binaries, assembled in this manner, can be measured as highly eccentric, detectable in the LIGO-Virgo-KAGRA (LVK) band from their formation, with , through their circularization and up to their merger; the remaining binaries circularize to small eccentricities () before entering the LVK band. More eccentric mergers would be observed for sBHs with higher random velocities, closer to the supermassive black hole, or at lower observing frequency bands, as planned in future gravitational wave detectors such as the Einstein Telescope and LISA.
arXiv comment11 pages, 6 figures
References in corpus (51)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Advanced Virgo: a 2nd generation interferometric gravitational wave detector
- GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
- Science Case for the Einstein Telescope
- The first gravitational-wave source from the isolated evolution of two 40-100 Msun stars
- Rapid and Bright Stellar-mass Binary Black Hole Mergers in Active Galactic Nuclei
- Merging binary black holes formed through chemically homogeneous evolution in short-period stellar binaries
- Gravitational waves from scattering of stellar-mass black holes in galactic nuclei
- Assisted Inspirals of Stellar Mass Black Holes Embedded in AGN Disks: Solving the "Final AU Problem"
- The Sensitivity of the Advanced LIGO Detectors at the Beginning of Gravitational Wave Astronomy
- Secular evolution of compact binaries near massive black holes: gravitational wave sources and other exotica
- Binary Black Hole Mergers from Globular Clusters: Implications for Advanced LIGO
- Merging black hole binaries in galactic nuclei: implications for advanced-LIGO detections
- Formation and Evolution of Compact Object Binaries in AGN Disks
- Intermediate mass black holes in AGN disks: I. Production & Growth
- On the formation and evolution of black-hole binaries
- The Formation of Eccentric Compact Binary Inspirals and the Role of Gravitational Wave Emission in Binary-Single Stellar Encounters
- Eccentric Black Hole Mergers Forming in Globular Clusters
- Planet Formation by Coagulation: A Focus on Uranus and Neptune
- Lidov-Kozai Cycles with Gravitational Radiation: Merging Black Holes in Isolated Triple Systems
- Black Hole Mergers in Galactic Nuclei Induced by the Eccentric Kozai-Lidov Effect
- Formation of Kuiper Belt Binaries
- AGN as Potential Factories for Eccentric Black Hole Mergers
- Greatly enhanced merger rates of compact-object binaries in non-spherical nuclear star clusters
- On the rate of black hole binary mergers in galactic nuclei due to dynamical hardening
- Eccentric Black Hole Gravitational-Wave Capture Sources in Galactic Nuclei: Distribution of Binary Parameters
- Black Hole and Neutron Star Binary Mergers in Triple Systems: Merger Fraction and Spin-Orbit Misalignment
- Black hole mergers from quadruples
- Eccentric Black Hole Mergers in Active Galactic Nuclei
- Hierarchical Black-Hole Mergers in Multiple Systems: Constrain the Formation of GW190412, GW190814 and GW190521-like events
- Hyper Velocity Stars and the Restricted Parabolic 3-body Problem
- Orbital evolution of binary black holes in active galactic nucleus disks: a disk channel for binary black hole mergers?
- Enhanced Black-Hole Mergers in Binary-Binary Interactions
- Formation of Kuiper-belt binaries through multiple chaotic scattering encounters with low-mass intruders
- Black Hole Binary Formation in AGN Discs: From Isolation to Merger
- Hydrodynamical Evolution of Black-Hole Binaries Embedded in AGN Discs
- Binary Black Hole Merger Rates in AGN Disks versus Nuclear Star Clusters: Loud beats Quiet
- Unstable Mass Transfer from a Main-Sequence Star to a Supermassive Black Hole and Quasi-Periodic Eruptions
- First LIGO events: binary black holes mergings
- Hydrodynamical Simulations of Black-Hole Binary Formation in AGN Disks
- Single-single gravitational-wave captures in globular clusters: Eccentric deci-Hertz sources observable by DECIGO and Tian-Qin
- Binary Mergers near a Supermassive Black Hole: Relativistic Effects in Triples
- Gas dynamical friction as a binary formation mechanism in AGN discs
- Hot Circumsingle Disks Drive Binary Black Hole Mergers in Active Galactic Nucleus Disks
- Long-term Evolution of Tightly-Packed Stellar Black Holes in AGN Disks: Formation of Merging Black-Hole Binaries via Close Encounters
- Formation of Kuiper Belt Binaries
- Binary formation through gas-assisted capture and the implications for stellar, planetary and compact-object evolution
- Contracting and Expanding Binary Black Holes in 3D Low-Mass AGN Disks: The Importance of Separation
- Production of trans-Neptunian binaries through chaos-assisted capture
- Capture of stars into gaseous discs around massive black holes: Alignment, circularization and growth
- Hydrodynamical Evolution of Black-Hole Binaries Embedded in AGN Discs: II. Dependence on Equation of State, Binary Mass, and Separation Scales
Cited by in corpus (5)
- Impact of gas hardening on the population properties of hierarchical black hole mergers in AGN disks
- Binary mergers in strong gravity background of Kerr black hole
- Non-adiabatic dynamics of eccentric black-hole binaries in post-Newtonian theory
- The hierarchical three-body problem at
- Inferring host environment properties and gravitational-wave decay time from the eccentricity measurement of dynamically captured binaries