Disturbed galaxy clusters are more abundant in an X-ray volume-limited sample
نویسندگان
چکیده
منابع مشابه
Scaling laws in X - ray Galaxy Clusters
We present a study of the integrated physical properties of a sample of 28 X-ray galaxy clusters observed with Chandra at redshift between 0.4 and 1.3. In particular, we have twelve objects in the redshift range 0.4–0.6, five between 0.6 and 0.8, seven between 0.8 and 1 and four at z >1.0, compounding the largest sample available for such a study. We focus particularly on the properties and evo...
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I review recent observational progress in the search for and study of distant galaxy clusters in the X-ray band, with particular emphasis on the evolution of the abundance of X-ray clusters out to z ∼1. Several on-going deep X-ray surveys have led to the discovery of a sizeable population of clusters at z > 0.5 and have the sensitivity to detect clusters beyond redshift one. These surveys have ...
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We present a model to predict the clustering properties of X-ray selected clusters in flux-limited surveys. Our technique correctly accounts for past lightcone effects on the observed clustering and follows the non-linear evolution in redshift of the underlying dark matter correlation function and cluster bias factor. The conversion of the limiting flux of a survey into the corresponding minimu...
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We analyse the spatial clustering properties of the RASS1 Bright Sample, an X-ray flux-limited catalogue of galaxy clusters selected from the southern part of the ROSAT All-Sky Survey. The two-point correlation function ξ(r) of the whole sample is well fitted (in an Einstein-de Sitter model) by the power-law ξ = (r/r0) −γ , with r0 = 21.5 +3.4 −4.4 h −1 Mpc and γ = 2.11 −0.56 (95.4 per cent con...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2017
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201731854