English
Related papers

Related papers: Disc Novae: Thermodynamics of Gas Assisted Binary …

200 papers

We investigate close encounters by stellar mass black holes (BHs) in the gaseous discs of active galactic nuclei (AGN) as a potential formation channel of binary black holes (BBHs). We perform a series of 2D isothermal viscous…

Astrophysics of Galaxies · Physics 2024-09-24 Henry Whitehead , Connar Rowan , Tjarda Boekholt , Bence Kocsis

We investigate close encounters between initially unbound black holes (BHs) in the gaseous discs of active galactic nuclei (AGN), performing the first 3D non-isothermal hydrodynamical simulations of gas-assisted binary BH formation. We…

High Energy Astrophysical Phenomena · Physics 2025-08-28 Henry Whitehead , Connar Rowan , Bence Kocsis

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

Binary black hole (BBH) mergers, particularly those with component masses in the pair-instability gap, may be produced by hierarchical mergers in the disks surrounding Active Galactic Nuclei (AGN). While the interaction of an embedded BBH…

High Energy Astrophysical Phenomena · Physics 2022-04-13 Ya-Ping Li , Adam M. Dempsey , Hui Li , Shengtai 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

Stellar-mass black holes (sBH) embedded in gaseous disks of active galactic nuclei (AGN) can be important sources of detectable gravitational radiation for LIGO/Virgo when they form binaries and coalesce due to orbital decay. In this paper,…

High Energy Astrophysical Phenomena · Physics 2024-01-17 Kecheng Qian , Jiaru Li , Dong Lai

The black hole (BH) binaries in active galactic nuclei (AGN) are expected to form mainly through scattering encounters in the ambient gaseous medium. Recent simulations, including our own, have confirmed this formation pathway is highly…

High Energy Astrophysical Phenomena · Physics 2023-09-27 Connar Rowan , Henry Whitehead , Tjarda Boekholt , Bence Kocsis , Zoltán Haiman

Stellar-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) discs are possible progenitors of black-hole mergers detected in gravitational waves by LIGO/VIRGO. To better understand the hydrodynamical evolution of BBHs…

High Energy Astrophysical Phenomena · Physics 2022-09-21 Rixin Li , Dong Lai

Stellar mass, binary black hole (BBH) mergers dominates the sources of gravitational wave (GW) events so far detected by the LIGO/Virgo/KAGRA (LVK) experiment. The origin of these BBHs is unknown, and no electromagnetic (EM) counterpart has…

High Energy Astrophysical Phenomena · Physics 2025-03-28 Juan C. Rodríguez-Ramírez , Rodrigo Nemmen , Clécio R. Bom

In this paper, we study how gaseous dynamical friction (DF) affects the motion of fly-by stellar-mass black holes (sBHs) embedded in active galactic nucleus (AGN) discs. We perform 3-body integrations of the interaction of two co-planar…

High Energy Astrophysical Phenomena · Physics 2023-07-20 Stanislav DeLaurentiis , Marguerite Epstein-Martin , Zoltan Haiman

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

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 hole\,(BBH) mergers resulting from binary-single interactions\,(BSIs) in active galactic nucleus\,(AGN) disks are a potential source of gravitational wave\,(GW) events with measurable eccentricities. Previous…

High Energy Astrophysical Phenomena · Physics 2025-10-13 Mengye Wang , Qingwen Wu , Yiqiu Ma

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

Perturber objects interacting with supermassive black hole accretion disks are often invoked to explain observed quasi-periodic behavior in active galactic nuclei (AGN). We present global, 3D general relativistic magnetohydrodynamic (GRMHD)…

High Energy Astrophysical Phenomena · Physics 2024-04-04 Sean M. Ressler , Luciano Combi , Xinyu Li , Bart Ripperda , Huan Yang

Stellar-mass binary black hole\,(BBH) mergers within the accretion disks of active galactic nuclei may contribute to gravitational wave\,(GW) events detected by grounded-based GW detectors. In particular, the interaction between a BBH and a…

High Energy Astrophysical Phenomena · Physics 2025-04-17 Mengye Wang , Yiqiu Ma , Hui Li , Qingwen Wu , Ya-Ping Li , Xiangli Lei , Jiancheng Wu

Black hole binary systems embedded in AGN discs have been proposed as a source of the observed gravitational waves (GWs) from LIGO-Virgo-KAGRA. Studies have indicated binary-single encounters could be common place within this population,…

Astrophysics of Galaxies · Physics 2025-01-16 Connar Rowan , Henry Whitehead , Gaia Fabj , Pankaj Saini , Bence Kocsis , Martin Pessah , Johan Samsing

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…

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
‹ Prev 1 2 3 10 Next ›