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تسجيل مستخدم جديدLack of cooling flow clusters at z>0.5
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The goal of this work is to study the incidence rate of cooling flows in the high redshift clusters using Chandra observations of z>0.5 objects from a new large, X-ray selected catalog. 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 major mergers at z>0.5.
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D.M. Neumann (CEA/Saclay
, Service dAstrophysique
, France andn Max-Planck-Institut fur extraterrestrische Physik - MPE
1999
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