| Téléchargement | - Voir la version finale : The X-ray properties of optically selected z > 0.6 clusters in the European Southern Observatory Distant Cluster Survey (PDF, 919 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1111/j.1365-2966.2006.10796.x |
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| Auteur | Rechercher : Johnson, O.; Rechercher : Best, P.; Rechercher : Zaritsky, D.; Rechercher : Clowe, D.; Rechercher : Aragón-Salamanca, A.; Rechercher : Halliday, C.; Rechercher : Jablonca, P.; Rechercher : Milvang-Jensen, B.; Rechercher : Pello, R.; Rechercher : Poggianti, B. M.; Rechercher : Rudnick, G.; Rechercher : Saglia, R.; Rechercher : Simard, Luc1; Rechercher : White, S. |
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| Affiliation | - Conseil national de recherches du Canada. Institut Herzberg d'astrophysique du CNRC
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| Format | Texte, Article |
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| Sujet | laxies: clusters: general; X-rays: galaxies: clusters |
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| Résumé | We 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. |
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| Date de publication | 2006-08-24 |
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| Maison d’édition | Oxford University Press |
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| Dans | |
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| Note | Les données connexes "X-ray properties of 3 EDisCS galaxy clusters (Johnson+, 2006)" sont disponibles dans le catalogue VizieR à http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J%2FMNRAS%2F371%2F1777 |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 13052848 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | fd6851dd-fe88-4524-9942-26f5164ec230 |
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| Enregistrement créé | 2009-11-25 |
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| Enregistrement modifié | 2023-06-23 |
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