The X-ray properties of optically selected z > 0.6 clusters in the European Southern Observatory Distant Cluster Survey

Download
  1. (PDF, 705 KB)
  2. Get@NRC: The X-ray properties of optically selected z > 0.6 clusters in the European Southern Observatory Distant Cluster Survey (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1111/j.1365-2966.2006.10796.x
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleMonthly Notices of the Royal Astronomical Society
ISSN0035-8711
1365-2966
Volume371
Issue4
Pages17771792
Subjectlaxies: clusters: general; X-rays: galaxies: clusters
AbstractWe present XMM–Newton observations of three optically selected z > 0.6 clusters from the European Southern Observatory (ESO) Distant Cluster Survey (EDisCS), comprising the first results of a planned X-ray survey of the full EDisCS high-redshift sample. The EDisCS clusters were identified in the Las Campanas Distant Cluster Survey as surface brightness fluctuations in the optical sky and their masses and galaxy populations are well described by extensive photometric and spectroscopic observations. We detect two of the three clusters in the X-ray and place a firm upper limit on diffuse emission in the third cluster field. We are able to constrain the X-ray luminosity and temperature of the detected clusters and estimate their masses. We find that the X-ray properties of the detected EDisCS clusters are similar to those of X-ray-selected clusters of comparable mass and – unlike other high-redshift, optically selected clusters – are consistent with the T–σ and LX–σ relations determined from X-ray-selected clusters at low redshift. The X-ray determined mass estimates are generally consistent with those derived from weak-lensing and spectroscopic analyses. These preliminary results suggest that the novel method of optical selection used to construct the EDisCS catalogue may, like selection by X-ray luminosity, be well suited for identification of relaxed, high-redshift clusters whose intracluster medium is in place and stable by z ∼ 0.8.
Publication date
PublisherOxford University Press
AffiliationNRC Herzberg Institute of Astrophysics; National Research Council Canada
NoteThe related data "X-ray properties of 3 EDisCS galaxy clusters (Johnson+, 2006)" is available in the VizieR Catalogue at http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J%2FMNRAS%2F371%2F1777
Peer reviewedYes
NPARC number13052848
Export citationExport as RIS
Report a correctionReport a correction
Record identifierfd6851dd-fe88-4524-9942-26f5164ec230
Record created2009-11-25
Record modified2017-06-27
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)