|
|
|
|
PhD achievements
|
Realisation of a full simulation of the
MareNostrum volume.
(with a resolution of ~ 8x107 M⊙/h per baryonic particle,
using 2x2563 particles in a 50 Mpc/h box)
Amongst others, the following mecanisms have been introduced into the simulation:
- Star formation process calibrated on a cosmic scale,
- Supernovae feedback from both type II and Ia (taking into account the appropriate delay time),
- Turbulent metallic diffusion (transport of heavy elements along the gradients of concentration),
- AGN activity, modeled by a accretion disk arround BH and a conic jet kinetic feedback.
The main results that have been obtained are
:
- a well defined Colour-Magnitude Diagram,
- distributions of stellar populations ages against galaxy mass in agreement with observations,
- distributions of stellar metallicity against galaxy mass in agreement with observations,
- the slope of the [α / Fe] relation reproducing extremely well the observations,
- strongly constrained scaling relations, such as the Faber-Jackson & Tully-Fisher relations,
- the evolution of the Black-Holes cosmic density following smoothly the observations,
- the reproduction of the BH scaling relations, such as MBH vs σ*.
|
Evolution of the density, temperature & metallicity of the medium in a slice of the volume
(click on this animation to see the full set of properties in detail)
|
|