We thank the principal investigators of WENSS, Drs. George Miley and Ger de Bruyn, for their continual support, and Arno Schoenmakers for many helpful suggestions. We also thank Dr. Richard McMahon, who provided us with the APM data used in this paper and R. Primavera, who carried out astrometric measurements on the POSS prints. This work was partially supported by the European Commission, TMR programme, Research Network Contract ERBFMRXCT96-0034 "CERES". The Isaac Newton Telescope is operated on the island of La Palma by the Royal Greenwich Observatory at the spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofisica de Canarias. The Westerbork Synthesis Radio Telescope (WSRT) is operated by the Netherlands Foundation for Research in Astronomy with financial support from the Netherlands Organisation for Scientific Research. The National Radio Astronomy Observatory is operated by Associated Universities, Inc., under contract with the National Science Foundation. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. The 102 CDROM of the Digitized Sky Survy was produced at the Space Telescpe Science Institute under U.S. Government grant NAG-W-2166.
© European Southern Observatory (ESO) 1998
Online publication: September 30, 1998