Dunja Fabjan

INAF – Trieste Astronomical Observatory

torek, 31. 3. 2009, ob 15h v F3

Hydrodynamical simulations of galaxy clusters – IntraCluster Medium and AGN feed back. Cosmological hydrodynamical simulations are widely used to investigate the effects of physical processes during the formation of large scale cosmic structures. I will present the study of AGN feedback effect on IntraCluster Medium (ICM) and galaxy population properties in hydrodynamical simulations of galaxy clusters. Our simulations are performed with the GADGET2 code, where the energy release from black hole accretion (Springel et al. 2005) and a detailed model of chemical enrichment (Tornatore et al. 2007) are included. Simulations are carried out for a set of 16 clusters spanning the range of mass 1e14-1e15 Msun/h. I will show the effect of different AGN schemes of the thermo- and chemo-dynamical properties of ICM, e.g. the temperature and metallicity profiles, on galaxy groups and galaxy clusters scale. I will critically assess the reliability of our models through a comparison with observational data in the X-ray band.