Naked active galactic nuclei

  title={Naked active galactic nuclei},
  author={Michael R. S. Hawkins},
  journal={Astronomy and Astrophysics},
  • M. Hawkins
  • Published 7 June 2004
  • Physics
  • Astronomy and Astrophysics
In this paper we report the discovery of a new class of active galactic nucleus in which although the nucleus is viewed directly, no broad emission lines are present. The results are based on a survey for AGN in which a sample of about 800 quasars and emission line galaxies were monitored yearly for 25 years. Among the emission line galaxies was the expected population of Seyfert 2 galaxies with only narrow forbidden lines in emission, and no broad lines. However, from the long term monitoring… 

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