Baryon fractions in clusters of galaxies: evidence against a preheating model for entropy generation


TheMillenniumGas Project aims to undertake smoothed particle hydrodynamic resimulations of themillennium simulation, providingmany hundredmassive galaxy clusters for comparison with X-ray surveys (170 clusters with kTsl > 3 keV). This paper looks at the hot gas and stellar fractions of clusters in simulations with different physical heating mechanisms… (More)


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