The Structure and Galaxy Population of the Most Distant Massive Clusters in the Southern Sky

R. Demarco, P. Rosati, C. Lidman, M. Nonino, V. Mainieri, A. Stanford, B. Holden, P. Eisenhardt

Research output: Contribution to conferencePaper

Abstract

In this work, we present first results of an unprecedented study of the galaxy populations of the two most distant massive clusters known to date in the southern sky, RXJ 0152 at z = 0.837 and RDCS 1252 at z = 1.237, selected from the ROSAT Deep Cluster Survey (Rosati et al., 1998). As part of a VLT large program, very deep wide-area near-IR imaging with VLT and NTT have been obtained, as well as extensive spectroscopy, which has yielded so far 78 secure cluster members for RXJ 0152 (Demarco et al. 2004, in prep.) and 28 secure members for RDCS 1252 (Rosati et al., 2004, in prep.).

Supporting observations for this project include: deep Chandra and XMM pointings which give detailed information on the physics and structure of the ICM; HST-ACS observations as part of a GTO program, which will deliver unprecedented morphological information of the member galaxies.
Original languageEnglish
Publication statusPublished - 1 Jan 2004

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