The third catalog of active galactic nuclei detected by the Fermi large area telescope

Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Gonzalez, J. Becerra; Bellazzini, R.; Bissaldi, E.; Blandford, R. D.; Bloom, E. D.; Bonino, R.; Bottacini, E.; Brandt, T. J.; Bregeon, J.; Britto, R. J.; Bruel, P.; Buehler, R.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caragiulo, M.; Caraveo, P. A.; Carpenter, B.; Casandjian, J. M.; Cavazzuti, E.; Cecchi, C.; Charles, E.; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Chiaro, G.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Cominsky, L. R.; Conrad, J.; Cutini, S.; D’Abrusco, R.; D’Ammando, F.; Angelis, A. de; Desiante, R.; Digel, S. W.; Venere, L. Di; Drell, P. S.; Favuzzi, C.; Fegan, S. J.; Ferrara, E. C.; Finke, J.; Focke, W. B.; Franckowiak, A.; Fuhrmann, L.; Fukazawa, Y.; Furniss, A. K.; Fusco, P.; Gargano, F.; Gasparrini, D.; Giglietto, N.; Giommi, P.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Grove, J. E.; Guiriec, S.; Hewitt, J. W.; Hill, A. B.; Horan, D.; Itoh, R.; Jóhannesson, G.; Johnson, A. S.; Johnson, W. N.; Kataoka, J.; Kawano, T.; Krauss, F.; Kuss, M.; Mura, G. La; Larsson, S.; Latronico, L.; Leto, C.; Li, J.; Li, L.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Madejski, G. M.; Mayer, M.; Mazziotta, M. N.; McEnery, J. E.; Michelson, P. F.; Mizuno, T.; Moiseev, A. A.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Nuss, E.; Ohno, M.; Ohsugi, T.; Ojha, R.; Omodei, N.; Orienti, M.; Orlando, E.; Paggi, A.; Paneque, D.; Perkins, J. S.; Pesce-Rollins, M.; Piron, F.; Pivato, G.; Porter, T. A.; Rainò, S.; Rando, R.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Romani, R. W.; Salvetti, D.; Schaal, M.; Schinzel, F. K.; Schulz, A.; Sgrò, C.; Siskind, E. J.; Sokolovsky, K. V.; Spada, F.; Spandre, G.; Spinelli, P.; Stawarz, L.; Suson, D. J.; Takahashi, H.; Takahashi, T.; Tanaka, Y.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Torres, D. F.; Torresi, E.; Tosti, G.; Troja, E.; Uchiyama, Y.; Vianello, G.; Winer, B. L.; Wood, K. S.; Zimmer, S.

doi:10.1088/0004-637X/810/1/14

Title: The third catalog of active galactic nuclei detected by the Fermi large area telescope

Journal Article · Tue Aug 25 00:00:00 EDT 2015 · The Astrophysical Journal (Online)

DOI:https://doi.org/10.1088/0004-637X/810/1/14· OSTI ID:1354914

Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Gonzalez, J. Becerra; Bellazzini, R.; Bissaldi, E.; Blandford, R. D.; Bloom, E. D.; Bonino, R.; Bottacini, E.; Brandt, T. J.; Bregeon, J.; Britto, R. J.; Bruel, P.; Buehler, R.; Buson, S. more »

We present the third catalog of active galactic nuclei (AGNs) detected by the Fermi-LAT (3LAC). 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 ($$| b| \gt 10^\circ $$), 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. There were about 50% of the BL Lacs that had 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. Furthermore, the energy-flux distributions of the different blazar populations are in good agreement with extrapolation from earlier catalogs.

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Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: Fermi LAT Collaboration

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1354914

Journal Information:: The Astrophysical Journal (Online), Vol. 810, Issue 1; ISSN 1538-4357

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 377 works

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Evaluating the optical classification of Fermi BCUs using machine learning Kang, Shi-Ju; Fan, Junhui; Mao, Weiming arXiv https://doi.org/10.48550/arxiv.1902.07717	text	January 2019
Investigation of the WR 11 field at decimeter wavelengths Benaglia, Paula; del Palacio, Santiago; H., Ishwara-Chandra C. arXiv https://doi.org/10.48550/arxiv.1903.10571	text	January 2019
Probing the unidentified Fermi blazar-like population using optical polarization and machine learning Liodakis, I.; Blinov, D. arXiv https://doi.org/10.48550/arxiv.1904.04278	text	January 2019
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Complementarity of Stacking and Multiplet Constraints on the Blazar Contribution to the Cumulative High-Energy Neutrino Intensity Yuan, Chengchao; Murase, Kohta; Mészáros, Peter arXiv https://doi.org/10.48550/arxiv.1904.06371	text	January 2019
Ejection of Double knots from the radio core of PKS 1510--089 during the strong gamma-ray flares in 2015 Park, Jongho; Lee, Sang-Sung; Kim, Jae-Young arXiv https://doi.org/10.48550/arxiv.1904.11118	text	January 2019
Gamma Ray polarimetry; a new window for the non-thermal Universe Ilie, Cosmin arXiv https://doi.org/10.48550/arxiv.1906.02824	text	January 2019
Inter-Plasmoid Compton Scattering and the Compton Dominance of BL Lacs Christie, I. M.; Petropoulou, M.; Sironi, L. arXiv https://doi.org/10.48550/arxiv.1908.02764	text	January 2019
Optical characterization of WISE selected blazar candidates de Menezes, Raniere; Peña-Herazo, Harold A.; Marchesini, Ezequiel J. arXiv https://doi.org/10.48550/arxiv.1908.05229	text	January 2019
The High Energy View of FR0 Radio Galaxies Baldi, Ranieri D.; Torresi, Eleonora; Migliori, Giulia arXiv https://doi.org/10.48550/arxiv.1909.04113	preprint	January 2019
Identifying TeV Source Candidates among Fermi-LAT Unclassified Blazars Chiaro, G.; Meyer, M.; Di Mauro, M. arXiv https://doi.org/10.48550/arxiv.1909.10834	text	January 2019
Evaluating the classification of Fermi BCUs from the 4FGL Catalog Using Machine Learning Kang, Shi-Ju; Li, Enze; Ou, Wujing arXiv https://doi.org/10.48550/arxiv.1911.02570	text	January 2019
NuSTAR Observations and multi-wavelength modeling of the high-redshift BL Lac Object 4FGL J2146.5-1344 Rajagopal, M.; Marcotulli, L.; Ajello, M. arXiv https://doi.org/10.48550/arxiv.2001.05020	text	January 2020
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