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The Parkes quarter-Jansky flat-spectrum sample - III. Space density and evolution of QSOs

Abstract:

We analyze the Parkes quarter-Jansky flat-spectrum sample of QSOs in terms of space density, including the redshift distribution, the radio luminosity function, and the evidence for a redshift cutoff. With regard to the luminosity function, we note the strong evolution in space density from the present day to epochs corresponding to redshifts ∼1. We draw attention to a selection effect due to spread in spectral shape that may have misled other investigators to consider the apparent similariti...

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Publication status:
Published

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Publisher copy:
10.1051/0004-6361:20041786

Authors


Jackson, CA More by this author
Shaver, PA More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Kellermann, KI More by this author
Journal:
ASTRONOMY and ASTROPHYSICS
Volume:
434
Issue:
1
Pages:
133-148
Publication date:
2005-04-05
DOI:
ISSN:
0004-6361
URN:
uuid:71985fab-f9c5-414d-ad85-e51d01e1df4c
Source identifiers:
669
Local pid:
pubs:669

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