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 …

Gas falling into a black hole (BH) from large distances is unaware of BH spin direction, and
misalignment between the accretion disc and BH spin is expected to be common. However …

This review covers the main aspects of black hole accretion disk theory. We begin with the
view that one of the main goals of the theory is to better understand the nature of black holes …

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

We show that the low-frequency quasi-periodic oscillations (QPOs) seen in the power-
density spectra of black hole binaries (and neutron stars) can be explained by the Lense …

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 …

This paper presents a continuation of our efforts to numerically study accretion disks that are
misaligned (tilted) with respect to the rotation axis of a Kerr black hole. Here we present …

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 …