We review the field of collisionless numerical simulations for the large-scale structure of the
Universe. We start by providing the main set of equations solved by these simulations and …

The paper presents a detailed review of the smooth particle hydrodynamics (SPH) method
with particular focus on its astrophysical applications. We start by introducing the basic ideas …

Numerical methods have become a powerful tool for research in astrophysics, but their utility
depends critically on the availability of suitable simulation codes. This calls for continuous …

We report on the successful completion of a 2 trillion particle cosmological simulation to z= 0
z=0 run on the Piz Daint supercomputer (CSCS, Switzerland), using 4000+ GPU nodes for a …

Isolated barred galaxies evolve by redistributing their angular momentum, which, emitted by
material in the inner disc at resonance with the bar, can be absorbed by resonant material in …

Abstract Objects designated as bulges in disc galaxies do not form a homogeneous class. I
distinguish three types: the classical bulges, the properties of which are similar to those of …

In smoothed particle hydrodynamics (SPH), artificial viscosity is necessary for the correct
treatment of shocks, but often generates unwanted dissipation away from shocks. We …

Evolution of stellar bars in disk galaxies is accompanied by dynamical instabilities and
secular changes. Following the vertical buckling instability, the bars are known to weaken …

We perform a series of simulations of a Galactic mass dark matter halo at different
resolutions: our largest uses over 3 billion particles and has a mass resolution of 1000 M⊙ …

Abstract Omega Centauri (ω Cen) is the Milky Way's most massive globular cluster, and has
long been suspected of being the remnant core of an accreted dwarf galaxy. If this scenario …