Quasars are more luminous than radio galaxies—so what?

  title={Quasars are more luminous than radio galaxies—so what?},
  author={Chris Simpson},
  journal={New Astronomy Reviews},
  • C. Simpson
  • Published 7 January 2003
  • Physics
  • New Astronomy Reviews
Abstract Surveys to find high-redshift radio galaxies deliberately exclude optically-bright objects, which may be distant radio-loud quasars. In order to properly determine the space density of supermassive black holes, the fraction of such objects missed must be determined within a quantitative framework for AGN unification. I briefly describe the receding torus model, which predicts that quasars should have more luminous ionizing continua than radio galaxies of similar radio luminosity, and… 

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