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Near-infrared K-band imaging of a sample of Ultra-Steep-Spectrum radio sources selected at 74 MHz
Matt J. Jarvis, Maria J. Cruz, Aaron S. Cohen +2
In this paper we present near-infrared K-band imaging of a sample of ultra-steep spectrum (USS) radio sources selected at 74 MHz. The dual selection criteria of low frequency and U…
Clustering and Proto-Clusters in the Early Universe
Huub Rottgering, Carlos De Breuck, Emanuele Daddi +5
The clustering properties of clusters, galaxies and AGN as a function of redshift are briefly discussed. It appears that extremely red objects at z ~ 1, and objects with J-K > 1.7…
A multi-wavelength study of the proto-cluster surrounding the z=4.1 radio galaxy TN J1338-1942
Carlos De Breuck, Frank Bertoldi, Chris Carilli +8
We present a 1.2 mm (250 GHz) map obtained with MAMBO on the IRAM 30m telescope of the central 25 arcmin^2 of the proto-cluster surrounding the z=4.1 radio galaxy TN J1338-1942. Th…
HI in the proto-cluster environment at z>2: absorbing haloes and the Lyman alpha forest
R. J. Wilman, M. J. Jarvis, H. J. A. Rottgering +1
We present VLT-UVES echelle spectra of the Lyman alpha emission and absorption in five radio galaxies at redshifts z=2.55-4.1. Together with data from our pilot study, we have a sa…
VLT spectropolarimetry of two powerful radio galaxies at z~1.4: UV continuum, emission-line properties and the nature of high-redshift dust
C. Solorzano-Inarrea, P. N. Best, H. J. A. Rottgering +1
(Abridged) Deep VLT spectropolarimetric observations are presented for two powerful radio galaxies, 0850-206 and 1303+091. These observations cover the rest-frame wavelength range…