Accretion discs in active galactic nuclei (AGNs) foster black hole (BH) formation, growth, and
mergers. Stellar mass BHs migrate inwards under the influence of hydrodynamical torques …

Using linear perturbation theory, we investigate the torque exerted on a low-mass planet
embedded in a gaseous protoplanetary disc with finite thermal diffusivity. When the planet …

Circumplanetary disks (CPDs) regulate the late accretion to the giant planet and serve as
the birthplace for satellites. Understanding their characteristics via simulations also helps to …

We study the orbital evolution and mass growth of protoplanets with masses M in the vicinity
of a dusty ring, using three-dimensional numerical simulations with a two-fluid model and …

We compute the gaseous dynamical friction force experienced by massive perturbers on
elliptical Keplerian orbits. Using linear perturbation theory, we investigate the density wake …

We investigate the migration of Mars-to super-Earth-sized planets in the vicinity of a
pressure bump in a 3D radiative protoplanetary disc while accounting for the effect of …

Many hot Jupiter (HJ) systems have been observed to have their stellar spin axis misaligned
with the planet's orbital angular momentum axis. The origin of this spin–orbit misalignment …

An overdense wake is created by a gravitating object moving through a gaseous medium,
and this wake pulls back on the object and slows it down. This is conventional dynamical …

We study the evolution of the eccentricity and inclination of protoplanetary embryos and low-
mass protoplanets (from a fraction of an Earth mass to a few Earth masses) embedded in a …

Context. Planetary embryos can continue to grow by pebble accretion until they become
giant planet cores. Simultaneously, these embryos mutually interact and also migrate due to …