6 papers
BRIGHT lights, BIG city: Massive galaxies, giant Ly-a nebulae, and proto--clusters
W. van Breugel, M. Reuland, W. de Vries +10
High redshift radio galaxies are great cosmological tools for pinpointing the most massive objects in the early Universe: massive forming galaxies, active super--massive black hole…
A search for high redshift clusters associated with radio galaxies at 2 < z < 4
J. D. Kurk, B. P. Venemans, H. J. A. Roettgering +2
High redshift radio galaxies are amongst the most massive galaxies in the early Universe and have properties expected from central galaxies in forming clusters. We are carrying out…
Deep Lyman alpha imaging of radio galaxy 1138-262 at redshift 2.2
J. D. Kurk, H. J. A. Roettgering, L. Pentericci +1
Observations of the powerful radio galaxy 1138-262 at z=2.2 suggest that this galaxy is a massive galaxy in the center of a forming cluster. We have imaged the field of 1138-262 wi…
Extremely Red Galaxies
Paola Andreani, Andrea Cimatti, Huub Roettgering +1
Preliminary results of a project aiming at unveiling the nature of the extremely red galaxies (ERGs) (objects with colours R-K>6 and I-K>5) found in deep optical-NIR surveys are pr…
WNB 0313+683: Analysis of a Newly Discovered Giant Radio Galaxy
A. P. Schoenmakers, K. -H. Mack, L. Lara +4
We present the results of a detailed analysis of the newly discovered 15 arcmin large FRII-type radio galaxy WNB 0313+683. It has a redshift of 0.0901 +/- 0.0002 and a projected li…
Dust in high-z radio-loud AGN
Andrea Cimatti, Wolfram Freudling, Huub Roettgering +2
We present continuum observations of a small sample of high-redshift, radio-loud AGN (radio galaxies and quasars) aimed at the detection of thermal emission from dust. Seven AGN we…