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20222026
most citedBlack Hole Binary Formation in AGN Discs: From Isolation to Merger

82 citations · 216 across the 18 of their papers we have counts for

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10 papers · 1 filter

astro-ph.HE2025

Gravitational Wave Phase shifts of black hole mergers in AGN Disks

Hiromichi Tagawa, Connar Rowan, János Takátsy +4

Ground-based gravitational wave (GW) detectors have discovered about 200 compact object mergers. The astrophysical origins of these events are highly debated, and it is possible th…

astro-ph.HE2025

Environmental effects in stellar mass gravitational wave sources II: Enhanced detectability of phase shifts in eccentric sub-populations

Lorenz Zwick, Kai Hendriks, Pankaj Saini +4

We demonstrate that the properties of eccentric gravitational wave (GW) signals enhance the detectability of GW phase shifts caused by environmental effects (EEs): The signal-to-no…

astro-ph.HE2025

Spin-Orbit Misalignments of Eccentric Black Hole Mergers in AGN Disks

Gaia Fabj, Christopher Tiede, Connar Rowan +2

The disks of active galactic nuclei (AGNs) provide a natural environment where stellar-mass black holes (BHs) can dynamically pair, undergo repeated interactions, and eventually me…

astro-ph.HE2025★ 6 cited

Hydrodynamic simulations of black hole evolution in AGN discs II: inclination damping for partially embedded satellites

Henry Whitehead, Connar Rowan, Bence Kocsis

We investigate the evolution of black holes on orbits with small inclinations () to the gaseous discs of active galactic nuclei. We perform 3D adiabatic hydrodynamic s…

astro-ph.HE2025★ 11 cited

Hydrodynamic simulations of black hole evolution in AGN discs I: orbital alignment of highly inclined satellites

Connar Rowan, Henry Whitehead, Gaia Fabj +3

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…

astro-ph.HE2025★ 1 cited

Environmental effects in stellar mass gravitational wave sources I: Expected fraction of signals with significant dephasing in the dynamical and AGN channels

Lorenz Zwick, János Takátsy, Pankaj Saini +5

We present the first overview of the expected quantity of signals which will showcase significant gravitational wave phase shifts caused by astrophysical environments, considering…

astro-ph.HE2025★ 11 cited

3D Adiabatic Simulations of Binary Black Hole Formation in AGN

Henry Whitehead, Connar Rowan, 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 hydrodynami…

astro-ph.HE2024★ 5 cited

Black Hole Merger Rates in AGN: contribution from gas-captured binaries

Connar Rowan, Henry Whitehead, 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 sig…

astro-ph.HE2023★ 18 cited

Disc Novae: Thermodynamics of Gas Assisted Binary Black Hole Formation in AGN Discs

Henry Whitehead, Connar Rowan, Tjarda Boekholt +1

We investigate the thermodynamics of close encounters between stellar mass black holes (BHs) in the gaseous discs of active galactic nuclei (AGN), during which binary black holes (…

astro-ph.HE2023★ 4 cited

Black Hole Binaries in AGN Accretion Discs II: Gas Effects on Black Hole Satellite Scatterings

Connar Rowan, Henry Whitehead, Tjarda Boekholt +2

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…