The main research interest of the Trieste numerical cosmology group is the formation of observable cosmic structures in a concordance LambdaCDM cosmology. This is driven by the non-linear clustering of dark matter. The initial conditions for this problem are fully specified by the cosmological model; however, the complex interplay of gas dynamics, gravitational instabilities, radiative cooling and heating and energetic feedback from massive and dying stars and from accreting black holes makes this problem very hard to tackle.
But the interest in proper modeling of the visible part of the Universe is twofold: it allows to give better control on the systematics of cosmological probes (like galaxy clusters or large-scale structure as traced by galaxies) and sheds light on the astrophysics of the formation of galaxies and of the low-density gas that fills the Universe.
The main tools used by our group are N-body and Smoothed Particle Hydrodynamics (many of our works are based on the GADGET code) and semi-analytic models of galaxy formation.These are the main topics of active research.
Important links to GADGET and related projects:
Dianoga project page
MUPPI project page