Astron. Astrophys. Suppl. Ser. 143, 181-192
W.H. de Vries1,2 - C.P. O'Dea2 - P.D. Barthel1 - D.J. Thompson3
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1 - Kapteyn Astronomical Institute, P.O. Box 800, NL-9700 AV Groningen, The Netherlands
2 - Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, U.S.A.
3 - California Institute of Technology, mailcode 320-47, Pasadena, CA 91125, U.S.A.
Received November 17, 1999; accepted January 11, 2000
We present deep optical and near-infrared imaging as well as optical spectroscopy of as yet unclassified hosts of Gigahertz Peaked Spectrum (GPS) radio sources. Identifications were obtained for 14 objects, several of which are new. Spectroscopic follow-up yielded redshift information on 7 GPS objects. The remaining 18 objects of our sample without redshifts await spectroscopy with 8 m class facilities.
Key words: galaxies: active -- galaxies: distances and redshifts -- (galaxies:) quasars: emission lines
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