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- W2091036291 abstract "view Abstract Citations (86) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Evolution of Gamma-Ray--loud Active Galactic Nuclei Chiang, J. ; Fichtel, C. E. ; von Montigny, C. ; Nolan, P. L. ; Petrosian, V. Abstract During the period from the launch of the Compton Observatory in 1991 April through 1993 September, the Energetic Gamma-Ray Experiment Telescope (EGRET) has detected, with high significance (>5σ), 33 blazar-type QSOs which are sources of high-energy gamma-rays and another eight which show strong evidence for high-energy gamma-ray emission. Many of the gamma-ray loud blazars have redshifts z ∼ 1 with the most distant source having a redshift of z = 2.2. The V/VMAX test has been applied to the sample of gamma-ray loud AGNs seen during the phase I and II observing periods, and evidence for the evolution of these sources consistent with pure luminosity evolution is presented. The effects of observational biases due to gamma-ray flux-detection limits and optical identifications are considered. Using the Ve/Va test, we find the parameters describing the evolution, and by de-evolving the sample, we make an estimate of the luminosity function of these objects. Finally, using this luminosity function, we make an estimate of the gamma-ray loud AGN contribution to the diffuse extragalactic emission. Publication: The Astrophysical Journal Pub Date: October 1995 DOI: 10.1086/176287 Bibcode: 1995ApJ...452..156C Keywords: GALAXIES: ACTIVE; GAMMA RAYS: OBSERVATIONS; GALAXIES: QUASARS: GENERAL full text sources ADS | data products SIMBAD (41) NED (41) HEASARC (1) Related Materials (1) Erratum: 1996ApJ...465.1011C" @default.
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- W2091036291 date "1995-10-01" @default.
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- W2091036291 title "The Evolution of Gamma-Ray--loud Active Galactic Nuclei" @default.
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