We investigate the properties of hybrid gravitational/hydrodynamic simulations, examining
both the numerics and the general physical properties of gravitationally driven hierarchical …

By comparing a collisionless cosmological N-body simulation (DM) to a smoothed particle
hydrodynamics simulation (SPH) with the same initial conditions, we investigate the …

Numerical simulations play an important role in current astronomy researches. Previous
dark-matter-only simulations have represented the large-scale structure of the Universe …

The back-reaction of baryons on the dark matter halo density profile is of great interest, not
least because it is an important systematic uncertainty when attempting to detect the dark …

Observations at low redshifts thus far fail to account for all of the baryons expected in the
Universe according to cosmological constraints. A large fraction of the baryons presumably …

We present a detailed numerical study of the impact that cosmological models featuring a
direct interaction between the dark energy component that drives the accelerated expansion …

Understanding the gas content of high-redshift halos is crucial for studying the formation of
the first generation of galaxies and reionization. Recently, Tseliakhovich & Hirata showed …

We study the formation of galaxies by using N-body/hydrodynamics simulations to
investigate how baryons collect at the centre of dark matter halos. We treat the dark matter …

We perform a suite of cosmological simulations in the ΛCDM paradigm of the formation of
the first structures in the universe prior to astrophysical reheating and reionization (15≲ z< …

We have resimulated the six galaxy-sized haloes of the Aquarius Project including metal-
dependent cooling, star formation and supernova feedback. This allows us to study not only …