People involved at OAB: de Ruiter.
The ATESP catalogue contains about 3000 radio sources down to a
20 cm flux limit of 
mJy. The radio data (including new data at 5 GHz)
are being used for
various purposes: i) determining the radio properties of ESP galaxies
(e.g. radio luminosity function of various types of galaxies), ii) deep radio
source counts and optical identification of ATESP sources, iii) detailed optical
studies of smaller selected areas: at present a sample of almost 70 objects,
complete down to 
has been observed at ESO, and spectroscopic data are
available for all objects. Spectroscopy of part of the fainter objects
has recently been carried out with the VLT and analysis of the spectra is in
progress.