The vertical shear instability (VSI) offers a potential hydrodynamic mechanism for angular
momentum transport in protoplanetary disks (PPDs). The VSI is driven by a weak vertical …

In many black hole (BH) systems, the accretion disk is expected to be misaligned with
respect to the BH spin axis. If the scale height of the disk is much smaller than the …

We study the interactions between a protostar and circumstellar disc under the influence of a
binary companion to determine the evolution of the mutual misalignment between the stellar …

Context. Multiple observations have offered evidence that a significant fraction of
protoplanetary disks contain warps. A warp in a disk evolves over time, affecting the …

It is usually thought that viscous torque works to align a circumbinary disc with the binary's
orbital plane. However, recent numerical simulations suggest that the disc may evolve to a …

Recent observations have demonstrated that some subsets of even moderately wide-
separation planet-hosting binaries are preferentially configured such that planetary and …

We identify a new dust instability that occurs in warped discs. The instability is caused by the
oscillatory gas motions induced by the warp in the bending wave regime. We first …

Warped accretion discs are expected in many protostellar binary systems. In this paper, we
study the long-term evolution of disc warp and precession for discs with dimensionless …

Accretion discs are present around both stellar-mass black holes in X-ray binaries and
supermassive black holes in active galactic nuclei. A wide variety of circumstantial evidence …

Several recent studies have suggested that circumstellar discs in young stellar binaries may
be driven into misalignement with their host stars due to the secular gravitational interactions …