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On the relationship between optically selected and X-ray-selected active galactic nucleiAvailable information on the optically selected active galactic nuclei (AGNs) (luminosity function, cosmological evolution, etc.), together with the knowledge of their X-ray to optical luminosity ratio, are used to predict the overall properties of X-ray-selected active galactic nuclei (number counts, evolution, luminosity and redshift distributions, etc.). The predicted properties are then compared with those observed. Similarly, predictions are carried out for the optical properties of the X-ray-selected AGN parent population. In the search for a possibility explanation for discrepancies, preliminary results are reported.
Document ID
19860044780
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Franceschini, A.
(Padova, Universita Padua, Italy)
Gioia, I. M.
(Padua Univ. Italy)
Maccacaro, T.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1986
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 301
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
86A29518
Funding Number(s)
CONTRACT_GRANT: CNR-PSN-83,021,021,61
CONTRACT_GRANT: NAS8-30751
Distribution Limits
Public
Copyright
Other

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