A New Complete Sample of Faint, Optically Selected Quasars: Comparison with Previous Results

  • B. Marano
  • G. Zamorani
  • V. Zitelli
Part of the Astrophysics and Space Science Library book series (ASSL, volume 121)


We present the results on a new sample of faint, optically selected quasar candidates. Two different search techniques (multicolour and grism) have been applied to the same field of 0.69 square degrees. The cross-check of the two lists of candidates allows us to estimate the level of completeness of each technique. We find about 50 quasars per square degree with J<21.0. In the magnitude range J=21–22 our results are in very good agreement with those of other existing surveys.


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Copyright information

© Springer Science+Business Media Dordrecht 1986

Authors and Affiliations

  • B. Marano
    • 1
  • G. Zamorani
    • 2
  • V. Zitelli
    • 1
  1. 1.Dipartimento di AstronomiaBolognaItaly
  2. 2.Istituto di RadioastronomiaBolognaItaly

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