| MULTI-PHASE HYDRODYNAMICS AND X-RAY CLUSTERS FORMATION (2007) | |||||||||||||
Abstract | |||||||||||||
| We investigate the role of radiative cooling within the core of large X-ray clusters using multi-phase hydrodynamics. We developed for that purpose a spherically symmetric hydrodynamical code, coupled to a \ uid model " that describes accurately the dark matter component. Cooling is included using a self-consistent multi-phase approach, leading to \cooled gas " mass deposition throughout the ow. We simulate the collapse and the subsequent evolution of a Coma-like X-ray cluster, avoiding the well-known \cooling catastrophe". The total mass pro le of our simulated cluster is very similar to the \universal " pro le proposed by Navarro, Frenk & White (1995) 1. More interestingly, we also obtain a quasi-isothermal temperature pro le, which is a direct consequence of multi-phase cooling within such a potential well. 1 | |||||||||||||
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