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The Transformation of Cluster Galaxies at Intermeidate Redshift
N. L. Homeier, R. Demarco, P. Rosati +17
We combine imaging data from the Advanced Camera for Surveys (ACS) with VLT/FORS optical spectroscopy to study the properties of star-forming galaxies in the z=0.837 cluster CL0152…
The spatial clustering of X-ray selected AGN and galaxies in the Chandra Deep Field South and North
R. Gilli, E. Daddi, G. Zamorani +10
We investigate the spatial clustering of X-ray selected sources in the two deepest X-ray fields to date, namely the 2Msec Chandra Deep Field North (CDFN) and the 1Msec Chandra Deep…
Strong Lensing Analysis of A1689 from Deep Advanced Camera Images
Tom Broadhurst, Narciso Benitez, Dan Coe +6
We analyse deep multi-colour Advanced Camera images of the largest known gravitational lens, A1689. Radial and tangential arcs delineate the critical curves in unprecedented detail…
The Evolutionary Status of Clusters of Galaxies at z ~ 1
H. Ford, M. Postman, J. P. Blakeslee +7
Combined HST, X-ray, and ground-based optical studies show that clusters of galaxies are largely "in place" by , an epoch when the Universe was less than half its present…
Ultra Compact Dwarf galaxies in Abell 1689: a photometric study with the ACS
S. Mieske, L. Infante, N. Benitez +37
The properties of Ultra Compact Dwarf (UCD) galaxy candidates in Abell 1689 (z=0.183) are investigated, based on deep high resolution ACS images. A UCD candidate has to be unresolv…
The Great Observatories Origins Deep Survey - VLT/FORS2 Spectroscopy in the GOODS-South Field
E. Vanzella, S. Cristiani, M. Dickinson +14
We present the first results of the ESO/GOODS program of spectroscopy of faint galaxies in the Chandra Deep Field South (CDF-S). 399 spectra of 303 unique targets have been obtaine…