Simulating galaxy clusters : the ICM and the galaxy populations

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dc.creatorRomeo, Alessio D.
dc.creatorSommer-Larsen, J.
dc.creatorPortinari, L.
dc.date2005-04-15
dc.date.accessioned2026-07-07T02:17:28Z
dc.date.available2026-07-07T02:17:28Z
dc.descriptionCosmological LambdaCDM TreeSPH simulations of the formation and evolution of galaxy groups and clusters have been performed. The simulations include: star formation, chemical evolution with non-instantaneous recycling, metal dependent radiative cooling, strong star burst and (optionally) AGN driven galactic super winds, effects of a meta-galactic UV field and thermal conduction. We report results on the temperature and entropy profiles of the ICM, the X-ray luminosity, cold fraction, M/L and IMLR ratios in gas and stars, metal abundances and gradients. Besides, the properties of the galaxy populations in the two richest clusters are discussed: global star formation rates of the cluster galaxies, the total K-band luminosity, the galaxy luminosity functions at z=0 and their redshift evolution, the colour-magnitude relation (``red sequence'') as resulting from metallicity effects, and the role of the IMF in reproducing colours and abundances of the stellar populations. Finally the contribute (20-40 %) to cluster light from the intra-cluster stars and the cD galaxy has been investigated: surface brightness profiles, mean colours and chemical abundances, kinematics (velocity dispersion and distributions) of the IC stellar populations.
dc.descriptionConference proceedings, 8 pags., 7 figs
dc.identifierhttps://arxiv.org/abs/astro-ph/0504348
dc.identifierhttp://arxiv.org/abs/astro-ph/0504348
dc.identifierProc. of Conf. "Baryons in Dark Matter Halos", Novigrad, 5-9 Oct. 2004, PoS SISSA
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9184
dc.subjectAstrophysics
dc.titleSimulating galaxy clusters : the ICM and the galaxy populations
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