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Title: The third catalog of active galactic nuclei detected by the FERMI Large Area Telescope

Journal Article · · Astrophysical Journal
 [1];  [2];  [3];  [4];  [5];  [6];  [7]; ;  [8];  [9];  [10]; ; ;  [11];  [12];  [13];  [14];  [15];
  1. Deutsches Elektronen Synchrotron DESY, D-15738 Zeuthen (Germany)
  2. Department of Physics and Astronomy, Clemson University, Kinard Lab of Physics, Clemson, SC 29634-0978 (United States)
  3. Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA 95064 (United States)
  4. Università di Pisa and Istituto Nazionale di Fisica Nucleare, Sezione di Pisa I-56127 Pisa (Italy)
  5. Laboratoire AIM, CEA-IRFU/CNRS/Université Paris Diderot, Service d’Astrophysique, CEA Saclay, F-91191 Gif sur Yvette (France)
  6. Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34127 Trieste (Italy)
  7. Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova (Italy)
  8. NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
  9. Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, I-56127 Pisa (Italy)
  10. Istituto Nazionale di Fisica Nucleare, Sezione di Bari, I-70126 Bari (Italy)
  11. W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States)
  12. Istituto Nazionale di Fisica Nucleare, Sezione di Torino, I-10125 Torino (Italy)
  13. Laboratoire Univers et Particules de Montpellier, Université Montpellier, CNRS/IN2P3, Montpellier (France)
  14. Department of Physics, University of Johannesburg, P. O. Box 524, Auckland Park 2006 (South Africa)
  15. Laboratoire Leprince-Ringuet, École polytechnique, CNRS/IN2P3, Palaiseau (France)
+ Show Author Affiliations

The third catalog of active galactic nuclei (AGNs) detected by the Fermi-LAT (3LAC) is presented. It is based on the third Fermi-LAT catalog (3FGL) of sources detected between 100 MeV and 300 GeV with a Test Statistic greater than 25, between 2008 August 4 and 2012 July 31. The 3LAC includes 1591 AGNs located at high Galactic latitudes (|b|>10{sup ∘}), a 71% increase over the second catalog based on 2 years of data. There are 28 duplicate associations, thus 1563 of the 2192 high-latitude gamma-ray sources of the 3FGL catalog are AGNs. Most of them (98%) are blazars. About half of the newly detected blazars are of unknown type, i.e., they lack spectroscopic information of sufficient quality to determine the strength of their emission lines. Based on their gamma-ray spectral properties, these sources are evenly split between flat-spectrum radio quasars (FSRQs) and BL Lacs. The most abundant detected BL Lacs are of the high-synchrotron-peaked (HSP) type. About 50% of the BL Lacs have no measured redshifts. A few new rare outliers (HSP-FSRQs and high-luminosity HSP BL Lacs) are reported. The general properties of the 3LAC sample confirm previous findings from earlier catalogs. The fraction of 3LAC blazars in the total population of blazars listed in BZCAT remains non-negligible even at the faint ends of the BZCAT-blazar radio, optical, and X-ray flux distributions, which hints that even the faintest known blazars could eventually shine in gamma-rays at LAT-detection levels. The energy-flux distributions of the different blazar populations are in good agreement with extrapolation from earlier catalogs.

OSTI ID:
22882731
Journal Information:
Astrophysical Journal, Vol. 810, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); Since 2009, the country of publication for this journal is the UK.; ISSN 0004-637X
Country of Publication:
United Kingdom
Language:
English

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Bow Ties in the Sky II: Searching for Gamma-ray Halos in the Fermi Sky Using Anisotropy text January 2017
Intrinsic Correlations for Flaring Blazars Detected by Fermi text January 2017
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Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert text January 2018
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A 34.5 day quasi-periodic oscillation in gamma-ray emission from the blazar PKS 2247-131 text January 2018
Blazars in the LOFAR Two-Metre Sky Survey First Data Release text January 2018
The relationship between the radio core-dominance parameter and spectral index in different classes of extragalactic radio sources (II) text January 2018
Gamma rays from jets interacting with BLR clouds in blazars text January 2019
Evaluating the optical classification of Fermi BCUs using machine learning text January 2019
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Open Universe for Blazars: a new generation of astronomical products based on 14 years of Swift-XRT data text January 2019
Complementarity of Stacking and Multiplet Constraints on the Blazar Contribution to the Cumulative High-Energy Neutrino Intensity text January 2019
Ejection of Double knots from the radio core of PKS 1510--089 during the strong gamma-ray flares in 2015 text January 2019
Gamma Ray polarimetry; a new window for the non-thermal Universe text January 2019
Inter-Plasmoid Compton Scattering and the Compton Dominance of BL Lacs text January 2019
Optical characterization of WISE selected blazar candidates text January 2019
The High Energy View of FR0 Radio Galaxies preprint January 2019
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Evaluating the classification of Fermi BCUs from the 4FGL Catalog Using Machine Learning text January 2019
NuSTAR Observations and multi-wavelength modeling of the high-redshift BL Lac Object 4FGL J2146.5-1344 text January 2020
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Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BL LACERTAE OBJECTS
CATALOGS
DETECTION
DISTRIBUTION
EMISSION
EXTRAPOLATION
GALAXIES
GALAXY NUCLEI
GAMMA RADIATION
GEV RANGE
LUMINOSITY
MEV RANGE 100-1000
QUASARS
RED SHIFT
SPECTRA
STATISTICS
SYNCHROTRON RADIATION
TELESCOPES