The properties of X-ray-selected active galactic nuclei. I - Luminosity function, cosmological evolution, and contribution to the diffuse X-ray background

1991 ◽  
Vol 374 ◽  
pp. 117 ◽  
Author(s):  
Tommaso Maccacaro ◽  
Roberto della Ceca ◽  
Isabella M. Gioia ◽  
Simon L. Morris ◽  
John T. Stocke ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Luminosity Function ◽  
Galactic Nuclei ◽  
Cosmological Evolution ◽  
X Ray ◽  
X Ray Background

The cosmological evolution and luminosity function of X-ray selected active galactic nuclei

1983 ◽  
Vol 266 ◽  
pp. L73 ◽  
Author(s):  
T. Maccacaro ◽  
I. M. Gioia ◽  
Y. Avni ◽  
P. Giommi ◽  
R. E. Griffiths ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Luminosity Function ◽  
Galactic Nuclei ◽  
Cosmological Evolution ◽  
X Ray

scholarly journals The Palomar Observatory Dwarf Seyfert Survey

1994 ◽  
Vol 159 ◽  
pp. 275-278
Author(s):  
Luis C. Ho ◽  
Alexei V. Filippenko ◽  
Wallace L. W. Sargent
Keyword(s):  
Active Galactic Nuclei ◽  
Luminosity Function ◽  
Galactic Nuclei ◽  
Statistical Properties ◽  
X Ray ◽  
Preliminary Results ◽  
Methods Of Analysis ◽  
Nearby Galaxies ◽  
X Ray Background

We describe an optical, spectroscopic survey of the nuclei of the 500 brightest galaxies in the northern sky. The primary goal is to search for low-luminosity active galactic nuclei (LLAGNs) in the centers of nearby galaxies. The results of this survey will have many astrophysical applications, including quantifying the faint end of the local AGN luminosity function and estimating the contribution of LLAGNs to the X-ray background. We summarize the statistical properties of the survey, describe our methods of analysis, and present some preliminary results based on ∼ 60% of the sample.

The properties of X-ray selected active galactic nuclei. II - A deeper look at the cosmological evolution

1992 ◽  
Vol 389 ◽  
pp. 491 ◽  
Author(s):  
Roberto della Ceca ◽  
Tommaso Maccacaro ◽  
Isabella M. Gioia ◽  
Anna Wolter ◽  
John T. Stocke
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Cosmological Evolution ◽  
X Ray

Active galactic nuclei make the cosmic X-ray background

1993 ◽  
Vol 414 ◽  
pp. L81 ◽  
Author(s):  
Andrzej A. Zdziarski ◽  
Piotr T. Zycki ◽  
Julian H. Krolik
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
X Ray ◽  
X Ray Background

scholarly journals X-Ray Surveys as Tools to Investigate the Cosmological Evolution of Quasars, BL Lac Objects and Clusters of Galaxies

1987 ◽  
Vol 124 ◽  
pp. 593-595
Author(s):  
Isabella M. Gioia ◽  
Tommaso Maccacaro ◽  
Anna Wolter
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Progress Report ◽  
Cosmological Evolution ◽  
Clusters Of Galaxies ◽  
Bl Lac Objects ◽  
X Ray ◽  
Basic Properties ◽  
Bl Lac ◽  
Einstein Observatory

We present a progress report on a major extension of the Einstein Observatory Medium Sensitivity Survey (MSS). The basic properties of the extragalactic sources identified with Active Galactic Nuclei (AGN) and clusters of galaxies are discussed. Results from previous work are briefly summarized.

scholarly journals The X-ray luminosity function of active galactic nuclei in the redshift intervalz=3-5

2015 ◽  
Vol 453 (2) ◽  
pp. 1946-1964 ◽  
Author(s):  
A. Georgakakis ◽  
J. Aird ◽  
J. Buchner ◽  
M. Salvato ◽  
M.-L. Menzel ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Luminosity Function ◽  
Galactic Nuclei ◽  
X Ray

scholarly journals The hard X-ray luminosity function of high-redshift (3 < z ≲ 5) active galactic nuclei

2014 ◽  
Vol 445 (4) ◽  
pp. 3557-3574 ◽  
Author(s):  
F. Vito ◽  
R. Gilli ◽  
C. Vignali ◽  
A. Comastri ◽  
M. Brusa ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Luminosity Function ◽  
High Redshift ◽  
Galactic Nuclei ◽  
X Ray
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