Detection of X-ray galaxy clusters based on the Kolmogorov method - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Europhysics Letters Année : 2011

Detection of X-ray galaxy clusters based on the Kolmogorov method

V. G. Gurzadyan
  • Fonction : Auteur
T. Ghahramanyan
  • Fonction : Auteur
A. L. Kashin
  • Fonction : Auteur
H. G. Khachatryan
  • Fonction : Auteur
E. Poghosian
  • Fonction : Auteur

Résumé

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.

Dates et versions

insu-03645900 , version 1 (19-04-2022)

Identifiants

Citer

V. G. Gurzadyan, F. Durret, T. Ghahramanyan, A. L. Kashin, H. G. Khachatryan, et al.. Detection of X-ray galaxy clusters based on the Kolmogorov method. Europhysics Letters, 2011, 95, pp.69001. ⟨10.1209/0295-5075/95/69001⟩. ⟨insu-03645900⟩
1 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More