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Related papers: Hydrodynamical Evolution of Black-Hole Binaries Em…

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Stellar-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) discs offer a distinct dynamical channel to produce black hole mergers detected in gravitational waves by LIGO/Virgo. To understand their orbital evolution…

High Energy Astrophysical Phenomena · Physics 2024-01-15 Rixin Li , Dong Lai

Stellar-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) discs offer a promising dynamical channel to produce black-hole mergers that are detectable by LIGO/Virgo. Modeling the interactions between the disc gas and…

High Energy Astrophysical Phenomena · Physics 2023-04-26 Rixin Li , Dong Lai

Binary black hole (BBH) mergers are the primary sources of gravitational wave (GW) events detected by LIGO/Virgo. Binary black holes embedded in the accretion discs of active galactic nuclei (AGN) are possible candidates for such GW events.…

Astrophysics of Galaxies · Physics 2020-07-22 W. Ishibashi , M. Gröbner

We perform a series of high-resolution 2D hydrodynamical simulations of equal-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) accretion disks to study whether these binaries can be driven to merger by the…

High Energy Astrophysical Phenomena · Physics 2021-05-05 Ya-Ping Li , Adam M. Dempsey , Shengtai Li , Hui Li , Jiaru Li

Motivated by the increasing number of detections of merging black holes by LIGO-VIRGO-KAGRA, black hole (BH) binary mergers in the discs of active galactic nuclei (AGN) is investigated as a possible merger channel. In this pathway, BH…

Astrophysics of Galaxies · Physics 2023-07-12 Connar Rowan , Tjarda Boekholt , Bence Kocsis , Zoltán Haiman

Stellar-mass black holes can become embedded within the gaseous disks of active galactic nuclei (AGNs). Afterwards, their interactions are mediated by their gaseous surroundings. In this work, we study the evolution of stellar-mass binary…

High Energy Astrophysical Phenomena · Physics 2023-03-08 Nicholas Kaaz , Sophie Lund Schrøder , Jeff J. Andrews , Andrea Antoni , Enrico Ramirez-Ruiz

Binary black hole (BBH) evolution in the discs of active galactic nuclei (AGN) is a promising channel for gravitational wave (GW)-driven mergers. It is however unclear whether binaries interacting with the surrounding disc undergo orbital…

High Energy Astrophysical Phenomena · Physics 2024-12-04 W. Ishibashi , M. Gröbner

The accretion disks that fuel active galactic nuclei (AGN) may house numerous stars and compact objects, formed in situ or captured from nearby star clusters. Embedded neutron stars and black holes may form binaries and eventually merge,…

High Energy Astrophysical Phenomena · Physics 2023-10-31 Alexander J. Dittmann , Adam M. Dempsey , Hui Li

Binary black holes embedded within the accretion disks that fuel active galactic nuclei (AGN) are promising progenitors for the source of gravitational wave events detected by LIGO/VIRGO. Several recent studies have shown that when these…

High Energy Astrophysical Phenomena · Physics 2023-12-19 Josh Calcino , Adam M. Dempsey , Alexander J. Dittmann , Hui Li

The majority of gravitational wave (GW) events detected so far by LIGO/Virgo originate from binary black hole (BBH) mergers. Among the different binary evolution paths, the merger of BBHs in accretion discs of active galactic nuclei (AGNs)…

Astrophysics of Galaxies · Physics 2020-07-01 Matthias Gröbner , Wako Ishibashi , Shubhanshu Tiwari , Maria Haney , Philippe Jetzer

Stellar-mass binary black hole (BBH) mergers occurring within the disks of active galactic nuclei (AGN) are promising sources for gravitational waves detectable by the LIGO, Virgo, and KAGRA (LVK) interferometers. Some of these events have…

LIGO/Virgo has detected several binary black hole (BBH) merger events that may have originated in the accretion disks of Active Galactic Nuclei (AGN). These events require individual black hole masses that fall within the pair instability…

High Energy Astrophysical Phenomena · Physics 2022-12-07 Adam M. Dempsey , Hui Li , Bhupendra Mishra , Shengtai Li

The growing number of stellar-mass binary black hole mergers discovered by Advanced LIGO and Advanced Virgo are starting to constrain the binaries' origin and environment. However, we still lack sufficiently accurate modeling of binary…

High Energy Astrophysical Phenomena · Physics 2019-05-15 Y. Yang , I. Bartos , Z. Haiman , B. Kocsis , Z. Marka , N. C. Stone , S. Marka

We explore the evolution of stellar mass black hole binaries (BHBs) which are formed in the self-gravitating disks of active galactic nuclei (AGN). Hardening due to three-body scattering and gaseous drag are effective mechanisms that reduce…

Astrophysics of Galaxies · Physics 2017-01-03 Nicholas C. Stone , Brian D. Metzger , Zoltan Haiman

Spin evolution of stellar-mass Black Holes (sBHs) embedded in AGN accretion disks is an important process relevant to production of gravitaional waves from binary Black Hole (BBH) merger events through the AGN channel. Since embedded sBHs…

High Energy Astrophysical Phenomena · Physics 2022-03-30 Ya-Ping Li , Yi-Xian Chen , Douglas N. C. Lin , Zhuoxiao Wang

We study the close encounters between two single black holes (BHs) embedded in an AGN disk using a series of global 2D hydrodynamics simulations. We find that when the disk density is sufficiently high, bound BH binaries can be formed by…

High Energy Astrophysical Phenomena · Physics 2023-03-01 Jiaru Li , Adam M. Dempsey , Hui Li , Dong Lai , Shengtai Li

The frequency of compact object interactions in AGN discs is naturally tied to the number of objects embedded within it. We investigate the evolution of black holes in the nuclear stellar cluster on inclined orbits to the AGN disc by…

High Energy Astrophysical Phenomena · Physics 2025-09-17 Connar Rowan , Henry Whitehead , Gaia Fabj , Philip Kirkeberg , Martin E. Pessah , Bence Kocsis

The accretion disks that power active galactic nuclei (AGN) are thought to house populations of stars and compact objects; after forming binaries these compact objects may merge, begetting gravitational waves such as those detected by LIGO…

High Energy Astrophysical Phenomena · Physics 2025-05-12 Alexander J. Dittmann , Adam M. Dempsey , Hui Li

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…

High Energy Astrophysical Phenomena · Physics 2020-08-19 Hiromichi Tagawa , Zoltan Haiman , Imre Bartos , Bence Kocsis

It has been suggested that merging black hole (BH) binaries in active galactic nucleus (AGN) discs formed through two-body scatterings via the gas-capture process may explain a significant fraction of BH mergers in AGN and a non-negligible…

High Energy Astrophysical Phenomena · Physics 2025-12-10 Connar Rowan , Henry Whitehead , Bence Kocsis
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