Circumbinary accretion: From binary stars to massive binary black holes

D Lai, DJ Muñoz - Annual Review of Astronomy and …, 2023 - annualreviews.org
We review recent works on the dynamics of circumbinary accretion, including time variability,
angular momentum transfer between the disk and the binary, and the secular evolution of …

Fundamental physics opportunities with the next-generation event horizon telescope

D Ayzenberg, L Blackburn, R Brito, S Britzen… - arxiv preprint arxiv …, 2023 - arxiv.org
The Event Horizon Telescope (EHT) Collaboration recently published the first images of the
supermassive black holes in the cores of the Messier 87 and Milky Way galaxies. These …

LISA definition study report

M Colpi, K Danzmann, M Hewitson… - arxiv preprint arxiv …, 2024 - arxiv.org
The Laser Interferometer Space Antenna (LISA) is the first scientific endeavour to detect and
study gravitational waves from space. LISA will survey the sky for Gravitational Waves in the …

The Santa Barbara Binary− disk Code Comparison

PC Duffell, AJ Dittmann, DJ d'Orazio… - The Astrophysical …, 2024 - iopscience.iop.org
We have performed numerical calculations of a binary interacting with a gas disk, using 11
different numerical methods and a standard binary− disk setup. The goal of this study is to …

A survey of disc thickness and viscosity in circumbinary accretion: Binary evolution, variability, and disc morphology

AJ Dittmann, G Ryan - Monthly Notices of the Royal …, 2022 - academic.oup.com
Much of the parameter space relevant to the evolution of astrophysical circumbinary
accretion discs remains unexplored. We have carried out a suite of circumbinary disc …

The decoupling of binaries from their circumbinary disks

AJ Dittmann, G Ryan, MC Miller - The Astrophysical Journal …, 2023 - iopscience.iop.org
We have investigated, both analytically and numerically, accreting supermassive black hole
binaries as they inspiral due to gravitational radiation to elucidate the decoupling of binaries …

Eccentric binaries in retrograde discs

C Tiede, DJ D'Orazio - Monthly Notices of the Royal …, 2024 - academic.oup.com
Modern numerical hydrodynamics tools have recently enabled detailed examinations of
binaries accreting from prograde circumbinary discs. These have reframed the current …

Disappearing thermal X-ray emission as a tell-tale signature of merging massive black hole binaries

LM Krauth, J Davelaar, Z Haiman… - Monthly Notices of …, 2023 - academic.oup.com
ABSTRACT The upcoming Laser Interferometer Space Antenna (LISA) is expected to detect
gravitational waves (GWs) from massive black hole binaries (MBHB). Finding the …

Multiband light curves from eccentric accreting supermassive black hole binaries

JR Westernacher-Schneider, J Zrake, A MacFadyen… - Physical Review D, 2022 - APS
We use long-run, high-resolution hydrodynamics simulations to compute the
multiwavelength light curves (LCs) from thermal disk emission around accreting equal-mass …

Precision tracking of massive black hole spin evolution with LISA

G Pratten, P Schmidt, H Middleton, A Vecchio - Physical Review D, 2023 - APS
The Laser Interferometer Space Antenna (LISA) will play a vital role in constraining the
origin and evolution of massive black holes throughout the Universe. In this study we use a …