Spin Evolution of Stellar-mass Black Hole Binaries in Active Galactic Nuclei

Abstract

The astrophysical origin of gravitational wave (GW) events is one of the most timely problems in the wake of the LIGO/Virgo discoveries. In active galactic nuclei (AGN), binaries form and evolve efficiently by dynamical interactions and gaseous dissipation. Previous studies have suggested that binary black hole (BBH) mergers in AGN disks can contribute significantly to BBH mergers observed by GW interferometers. Here we examine the distribution of the effective spin parameter ${\chi }_{\mathrm{eff}}$ of this GW source population. We extend our semi-analytical model of binary formation and evolution in AGN disks by following the evolution of the binary orbital angular momenta and black hole (BH) spins. BH spins change due to gas accretion and BH mergers, while the binary orbital angular momenta evolve due to gas accretion and binary-single interactions. We find that the distribution of ${\chi }_{\mathrm{eff}}$ predicted by our AGN model is similar to the distribution observed during LIGO/Virgo O1 and O2. On the other hand, if radial migration of BHs is inefficient, ${\chi }_{\mathrm{eff}}$ is skewed toward higher values compared with the observed distribution, because of the paucity of scattering events that would randomize spin directions relative to the orbital plane. We suggest that high binary masses and the positive correlation between binary mass and the standard deviation of ${\chi }_{\mathrm{eff}}$ for chirp masses up to $\approx 20$ ${\mathrm{M}}_{\odot }$, can be possible signatures for mergers originating in AGN disks. Finally, hierarchical mergers in AGN disks naturally produce properties of the recent GW event GW190412, including a low mass ratio, a high primary BH spin, and a significant spin component in the orbital plane.

20 pages, 11 figures, accepted in ApJ

References in corpus (24)

• Gravitational waves from scattering of stellar-mass black holes in galactic nuclei
• Nuclear Star Clusters
• Lidov-Kozai Cycles with Gravitational Radiation: Merging Black Holes in Isolated Triple Systems
• Distinguishing Spin-Aligned and Isotropic Black Hole Populations With Gravitational Waves
• Merging black holes in young star clusters
• Stellar remnants in galactic nuclei: mass segregation
• On the final spin from the coalescence of two black holes
• The Masses and Spins of Neutron Stars and Stellar-Mass Black Holes
• A Highly Spinning and Aligned Binary Black Hole Merger in the Advanced LIGO First Observing Run
• Where are LIGO's Big Black Holes?
• Intermediate mass black holes in AGN disks II. Model predictions & observational constraints
• Stellar-mass black holes in young massive and open stellar clusters and their role in gravitational-wave generation
• The Migration of Gap-Opening Planets is not Locked to Viscous Disk Evolution
• On the rate of black hole binary mergers in galactic nuclei due to dynamical hardening
• Black-Hole Spin and Galactic Morphology
• AGN Disks Harden the Mass Distribution of Stellar-mass Binary Black Hole Mergers
• Hydrodynamic Torques in Circumbinary Accretion Disks
• Spin-Orbit Misalignment of Merging Black-Hole Binaries with Tertiary Companions
• Final spins from the merger of precessing binary black holes
• Birth, life, and death of black hole binaries around supermassive black holes: dynamical evolution of gravitational wave sources
• Effective spin distribution of black hole mergers in triples
• GW170817A as a Hierarchical Black Hole Merger
• Cosmic Evolution of Stellar-mass Black Hole Merger Rate in Active Galactic Nuclei
• Being Careful with the Field Formation Interpretation of GW190412

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