Titlebook: Heating versus Cooling in Galaxies and Clusters of Galaxies; Proceedings of the M H. B?hringer,G.W. Pratt,P. Schuecker Conference proceedin

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Cold Gas in Cluster Coresratures (～ 10.K) and is not in stars. I present new Spitzer IRAC and MIPS observations of Abell 2597 that reveal significant amounts of warm dust and star formation at the level of 5 solar masses per year.

climax

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Investigating the Central Regions of the , Clusters with Chandra to the global cluster temperature, against the fraction of the virial radius, we find no evidence for a universal central temperature profile. Similarly by fitting the central temperature profile to a powerlaw, we find a continuous range of values for the slope. Interpreting a positive temperature

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Lack of Cooling Flow Clusters at z > 0.5om a new large, X-ray selected catalog [2]. We find that only a very small fraction of high-z objects have cuspy X-ray brightness profiles, which is a characteristic feature of the cooling flow clusters at z ～ 0. The observed lack of cooling flows is most likely a consequence of a higher rate of maj

Increment

Jogging

Hard X-ray emission from the core of the Perseus cluster and the thermal content of the radio bubbleus analysis. By fitting a model made up of multiple temperature components plus a powerlaw or hot thermal component, we map the spatial distribution of the hard flux. We confirm there is a strong hard excess within the central regions. The total luminosity in the 2-10 keV band inside 3 arcmin radius

Axillary

The Gaseous Atmosphere of M87 seen with XMM-Newtong versus cooling balance. The deepest XMM-Newton observation of M87 to date enables generating detailed temperature, entropy and pressure maps of its X-ray halo. We discuss some physical explanations for the features seen in these maps. The pressure distribution shows an overall ellipticity, the pre

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Investigating Heating and Cooling within a Sample of Distant Clusters