%0 Journal Article %T Detection of X-ray galaxy clusters based on the Kolmogorov method %+ Université Pierre et Marie Curie - Paris 6 (UPMC) %+ Institut d'Astrophysique de Paris (IAP) %A Gurzadyan, V. G. %A Durret, F. %A Ghahramanyan, T. %A Kashin, A. L. %A Khachatryan, H. G. %A Poghosian, E. %< avec comité de lecture %J Europhysics Letters %V 95 %P 69001 %8 2011 %D 2011 %Z 1201.1956 %Z 2011EL.....9569001G %R 10.1209/0295-5075/95/69001 %K Astrophysics - Cosmology and Nongalactic Astrophysics %Z Sciences of the Universe [physics]Journal articles %X The detection of clusters of galaxies in large surveys plays an important part in extragalactic astronomy, and particularly in cosmology, since cluster counts can give strong constraints on cosmological parameters. X-ray imaging is, in particular, a reliable means to discover new clusters, and large X-ray surveys are now available. Considering XMM-Newton data for a sample of 40 Abell clusters, we show that their analysis with a Kolmogorov distribution can provide a distinctive signature for galaxy clusters. The Kolmogorov method is sensitive to the correlations in the cluster X-ray properties and can therefore be used for their identification, thus allowing to search reliably for clusters in a simple way.

Based on observations obtained with XMM-Newton, an ESA science mission with instruments and contributions directly funded by ESA Member States and NASA. %G English %L insu-03645900 %U https://insu.hal.science/insu-03645900 %~ INSU %~ UPMC %~ CNRS %~ IAP %~ UPMC_POLE_2 %~ SORBONNE-UNIVERSITE %~ SU-INF-2018 %~ SU-SCIENCES %~ SU-TI %~ ALLIANCE-SU