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Optical Differences Between Radio-Loud and Radio-Quiet QSOs

Published online by Cambridge University Press:  19 July 2016

Paul J. Francis
Paul J. Francis*
Affiliation:
Steward Observatory, University of Arizona Tucson AZ 85721, U.S.A.cor1corresp
∗

Abstract

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We analyse the rest-frame UV spectra of a complete sample of optically selected radio-loud and radio-quiet QSOs. Our results are:

  1. 1: Broad absorption-line QSOs (BALQSOs) are all radio quiet, but they are strongly clustered toward the top end of the radio-quiet population in radio power.

  2. 2: Radio-loud QSOs have higher equivalent-width, narrower high ionisation emission-lines than radio-quiet QSOs.

  3. 3: Further Reading

See Francis, Hooper & Impey, 1993, Astronomical Journal 106, 417 and references therein for more details and discussion.

Type
Poster contributions: Statistical Studies and Evolution
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 503
Copyright
Copyright © Kluwer 1994