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 …

Black hole and neutron star X-ray binary systems routinely show quasi-periodic oscillations
(QPOs) in their X-ray flux. Despite being strong, easily measurable signals, their physical …

The astrophysical origin of gravitational wave (GW) events discovered by LIGO/VIRGO
remains an outstanding puzzle. In active galactic nuclei (AGNs), compact-object binaries …

We present Phantom, a fast, parallel, modular, and low-memory smoothed particle
hydrodynamics and magnetohydrodynamics code developed over the last decade for …

Stellar-mass black holes and neutron stars represent extremes in gravity, density, and
magnetic fields. They therefore serve as key objects in the study of multiple frontiers of …

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 (AGNs) …

In this paper, we revisit the issue of the propagation of warps in thin and viscous accretion
discs. In this regime, warps are known to propagate diffusively, with a diffusion coefficient …

We implement a black hole spin evolution and jet feedback model into SWIFT, a smoothed
particle hydrodynamics code. The jet power is determined self-consistently assuming that …

We study the circularization of tidally disrupted stars on bound orbits around spinning
supermassive black holes by performing 3D smoothed particle hydrodynamic simulations …

Prevalent around luminous accreting black holes, thin discs are challenging to resolve in
numerical simulations. When the disc and black hole angular momentum vectors are …