The XMM-LSS survey: optical assessment and properties of different X-ray selected cluster classes
- Adami, C.
- Mazure, A.
- Pierre, M.
- Sprimont, Pierre-Guillaume
- Libbrecht, C.
- Pacaud, F.
- Clerc, N.
- Sadibekova, Tatyana
- Surdej, Jean
- Altieri, B.
- Duc, P. A.
- Galaz, G.
- Gueguen, A.
- Guennou, L.
- Hertling, G.
- Ilbert, O.
- LeFèvre, J. P.
- Quintana, H.
- Valtchanov, I.
- Willis, J. P.
- Akiyama, M.
- Aussel, H.
- Chiappetti, L.
- Detal, Alain
- Garilli, B.
- LeBrun, V.
- LeFèvre, O.
- Maccagni, D.
- Melin, J. B.
- Ponman, T. J.
- Ricci, Davide
- Tresse, L.
DOIAbstract
XMM and Chandra opened a new area for the study of clusters of galaxies. Not only for cluster physics but also, for the detection of faint and distant clusters that were inaccessible with previous missions. This article presents 66 spectroscopically confirmed clusters (0.05<z<1.5) within an area of 6 deg2 enclosed in the XMM-LSS survey. Almost two thirds have been confirmed with dedicated spectroscopy only and 10% have been confirmed with dedicated spectroscopy supplemented by literature redshifts. Sub-samples, or classes, of extended-sources are defined in a two-dimensional X-ray parameter space allowing for various degrees of completeness and contamination. We describe the procedure developed to assess the reality of these cluster candida...
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