Lack of “ cooling flow ” clusters at z > 0 . 5
نویسندگان
چکیده
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 [1]. 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.
منابع مشابه
ar X iv : a st ro - p h / 06 11 43 8 v 1 1 4 N ov 2 00 6 Lack of cooling flow clusters at z > 0 . 5
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 [1]. 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...
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