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Spectral Properties of Parkes Flat-Spectrum Radio Sources

Published online by Cambridge University Press:  12 April 2016

Michael J. Drinkwater ,
Paul J. Francis  and
Rachel L. Webster
Michael J. Drinkwater
Affiliation:
Anglo-Australian Observatory, Coonabarabran, NSW 2357, Australia
Paul J. Francis
Affiliation:
School of Physics, University of Melbourne, Parkville, Vic 3052, Australia
Rachel L. Webster
Affiliation:
School of Physics, University of Melbourne, Parkville, Vic 3052, Australia

Abstract

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We have constructed composite spectra of a large sample of flat-spectrum radio sources. The spectra are all very similar over a wide range of radio and optical properties, and are also similar to a composite of optically selected QSOs. We find, however, that the forbidden lines of the very reddest objects are anomalously strong.

Type
IX. Surveys and Properties of Active Galaxies and Related Sources
Information
International Astronomical Union Colloquium , Volume 159: Emission Lines in Active Galaxies: New Methods and Techniques , 1997 , pp. 437 - 438
Copyright
Copyright © Astronomical Society of the Pacific 1997

References

Drinkwater, M.J., et al. 1996, MNRAS, in press.Google Scholar
Francis, P.J., & Koratkar, A. 1995, MNRAS, 274, 504.CrossRefGoogle Scholar
Francis, P.J., et al. 1991, ApJ, 373, 465.CrossRefGoogle Scholar