activity
19962001
collaborators

5 papers

astro-ph2001

The evolution of the cluster environments of radio sources at z<1.8

P. N. Best, M. D. Lehnert, H. J. A. Rottgering +1

An analysis of the cluster environments around distant radio galaxies is presented, in particular the results from new NTT deep optical-IR imaging of the fields of radio sources at…

astro-ph2001

Deep VLT spectroscopy of high redshift radio galaxy MRC 2104-242: Evidence for a metallicity gradient

R. Overzier, H. Rottgering, J. Kurk +1

In this contribution we will present deep VLT spectroscopy observations of the giant emission line halo around the z=2.49 radio galaxy MRC 2104-242. The morphology of the halo is d…

astro-ph2000

A search for clusters at high redshift - II. A proto cluster around a radio galaxy at z=2.16

L. Pentericci, J. D. Kurk, H. J. A Rottgering +7

VLT spectroscopic observations of Ly alpha--excess objects in the field of the clumpy radio galaxy 1138-262 at z=2.16 have led to the discovery of 14 galaxies and one QSO at approx…

astro-ph2000

ISO observations of a sample of Compact Steep Spectrum and GHz Peaked Spectrum Radio Galaxies

C. Fanti, F. Pozzi, R. Fanti +13

We present results from observations obtained with ISOPHOT, on board the ISO satellite, of a representative sample of seventeen CSS/GPS radio galaxies and of a control sample of si…

astro-ph1996

The Gaseous Environments of Radio Galaxies in the Early Universe: Kinematics of the Lyman Emission

R. van Ojik, H. J. A. Röttgering, G. K. Miley +1

We present intermediate resolution ( Å) spectra of the Ly emission from 15 high redshift radio galaxies (). Together with previously published spectra we analyze dat…