We present radio and optical observations of the peculiar radio galaxy J1835+620, a member of a new sample of large angular size radio galaxies selected from the NRAO VLA Sky Survey. Its optical counterpart is in a group of at least three galaxies and shows strong, narrow emission lines which allow us to measure its redshift as z = 0.518. The derived cosmological distance places J1835+620 among...

The cluster DC0107−46 (Abell 2877) lies within the Phoenix Deep Survey, made at 1.4 GHz with the Australia Telescope Compact Array. Of 89 known optical cluster members, 70 lie within the radio survey area. Of these 70 galaxies, 15 (21%) are detected, with luminosities as faint as 1.0×10 20 W Hz −1. Spectroscopic observations are available for 14/15 of the radio-detected cluster galaxies. Six ga...

This review discusses the current status of our knowledge of emission by dust and molecular gas in high redshift radio galaxies, and the uncertainties in the derivation of physical parameters from these data. The similarity of far-infrared luminous, gas-rich high redshift radio galaxies and local ultraluminous infrared galaxies (ULIGs) is discussed. Given that local ULIGs rapidly convert most o...

An analysis of the environments around a sample of 28 3CR radio galaxies with red-shifts 0.6 < z < 1.8 is presented, based primarily upon K–band images down to K ∼ 20 taken using the UK Infrared Telescope (UKIRT). A net overdensity of K– band galaxies is found in the fields of the radio galaxies, with the mean excess counts being comparable to that expected for clusters of Abell Class 0 richnes...

An analysis of radio and FIR emission in over 1500 IRAS selected galaxies produces a good linear correlation between radio and FIR luminosity, indicating that star formation in normal eld galaxies dominates the infrared luminosity in the local volume. Galaxies with clear radio-excess (deened as having at least 5 times larger radio ux over expected from FIR) are identiied as hosting a radio AGN,...

The optical morphological and photometric properties of 79 low redshift radio galaxies are discussed. It is found that most radio galaxies are luminous bulge dominated systems similar to normal non radio giant ellipticals. The average absolute magnitude of the sample is < MHOST (tot) > = -23.98, with a clear trend for FR I sources to be ∼ 0.5 mag brighter than FR II galaxies. In about 40% of th...

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 z ∼ 1.6. A net overdensity of K–band galaxies is found, together with a sharp peak in the angular cross–correlation amplitude, centred on the radio galaxies. This excess clustering is associated predominantly with re...

We quantify the angular clustering of radio galaxies in the NVSS and FIRST surveys using the two-point correlation function and the moments of counts-incells – both important points of comparison with theory. These investigations consistently demonstrate that the slope of the correlation function for radio galaxies agrees with that for optically-selected galaxies, γ ≈ 1.8. We describe how to di...

We present WSRT observations of the neutral hydrogen in the nearby radio galaxy B2 0648+27. In emission, we detect a very large amount of H I (MHI = 1.1 · 10 10 M⊙) that is distributed in a very extended disk, or ring-like structure, of about 160 kpc in size. We also detect H I absorption against the central radio continuum component. The detection of the H I, its structure and kinematics, give...

We present K-band images of 31 radio quasars selected from the B3-VLA quasar sample. A new method has been developed to detect and restore the host galaxies of these quasars. We have detected the host galaxies of 16 of them. Using these data together with previous data from the B3-VLA quasars (Carballo et al. 1998, hereafter Paper I) and literature data from other samples, we have analyzed a sa...