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The Space Density of High-Redshift Quasars
Published online by Cambridge University Press: 25 May 2016
Abstract
An upper limit on the space density of quasars at z > 5 is obtained independent of any optical magnitude limit, from the complete identification of a large sample of flat-spectrum radio sources. This upper limit is below the observed space density at z ≃ 2 − 3, showing that the turnover in space density is real and not merely due to obscuration.
- Type
- Cosmological Implications
- Information
- Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 561 - 562
- Copyright
- Copyright © Kluwer 1996