The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope: Data Release 3

dc.contributor.authorAjello, M.
dc.contributor.authorBaldini, L.
dc.contributor.authorBallet, J.
dc.contributor.authorBastieri, D.
dc.contributor.authorMirabal, Nestor
dc.contributor.authorNegro, Michela
dc.contributor.authorValverde, Janeth
dc.contributor.authoret al
dc.date.accessioned2023-03-02T18:59:09Z
dc.date.available2023-03-02T18:59:09Z
dc.date.issued2022-11-16
dc.descriptionAuthors: - M. Ajello , L. Baldini , J. Ballet , D. Bastieri, J. Becerra Gonzalez , R. Bellazzini , A. Berretta , E. Bissaldi, R. Bonino, A. Brill, P. Bruel , S. Buson , R. Caputo , P. A. Caraveo , C. C. Cheung , G. Chiaro, N. Cibrario, S. Ciprini, M. Crnogorcevic, S. Cutini, F. D’Ammando , S. De Gaetano, N. Di Lalla , L. Di Venere, A. Domínguez , V. Fallah Ramazani , E. C. Ferrara, A. Fiori , Y. Fukazawa , S. Funk , P. Fusco, V. Gammaldi , F. Gargano , S. Garrappa , D. Gasparrini, N. Giglietto, F. Giordano, M. Giroletti , D. Green , I. A. Grenier , S. Guiriec, D. Horan , X. Hou, T. Kayanoki , M. Kuss , S. Larsson, L. Latronico , T. Lewis , J. Li, I. Liodakis, F. Longo, F. Loparco, B. Lott , M. N. Lovellette, P. Lubrano , G. M. Madejski, S. Maldera , A. Manfreda , G. Martí-Devesa , M. N. Mazziotta , I. Mereu, P. F. Michelson, N. Mirabal, W. Mitthumsiri , T. Mizuno , M. E. Monzani, A. Morselli , I. V. Moskalenko , M. Negro, R. Ojha, M. Orienti, E. Orlando, J. F. Ormes , Z. Pei , H. Peña-Herazo, M. Persic, M. Pesce-Rollins , V. Petrosian , R. Pillera, H. Poon , T. A. Porter , G. Principe, S. Rainò, R. Rando, B. Rani, M. Razzano , S. Razzaque , A. Reimer , O. Reimer , L. Scotton , D. Serini, C. Sgrò , E. J. Siskind, G. Spandre , P. Spinelli, D. J. Suson , H. Tajima, D. F. Torres, J. Valverde, H. Yassin, and G. Zaharijasen_US
dc.description.abstractAn incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Large Area Telescope is presented. This version (4LAC-DR3) derives from the third data release of the 4FGL catalog based on 12 yr of E > 50 MeV gamma-ray data, where the spectral parameters, spectral energy distributions (SEDs), yearly light curves, and associations have been updated for all sources. The new reported AGNs include 587 blazar candidates and four radio galaxies. We describe the properties of the new sample and outline changes affecting the previously published one. We also introduce two new parameters in this release, namely the peak energy of the SED high-energy component and the corresponding flux. These parameters allow an assessment of the Compton dominance, the ratio of the inverse-Compton to the synchrotron-peak luminosities, without relying on X-ray data.en_US
dc.description.sponsorshipThis research has made use of the NASA/IPAC Extragalactic Database (NED) (2019), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration, and of archival data, software, and online services provided by the ASI Space Science Data Center (SSDC) operated by the Italian Space Agency. D.Ga. and S.Ci. acknowledge support by ASI through contract ASI-INFN 2021-43-HH.0 for SSDC, and the Istituto Nazionale di Fisica Nucleare (INFN)en_US
dc.description.urihttps://iopscience.iop.org/article/10.3847/1538-4365/ac9523/metaen_US
dc.format.extent9 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2rf1q-ypej
dc.identifier.citationAjello, M., et al. “The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope: Data Release 3” The Astrophysical Journal Supplement Series 263, no. 2 (16 Nov, 2022). https://doi.org/ 10.3847/1538-4365/ac9523.en_US
dc.identifier.urihttps://doi.org/10.3847/1538-4365/ac9523
dc.identifier.urihttp://hdl.handle.net/11603/26928
dc.language.isoen_USen_US
dc.publisherIOPen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleThe Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope: Data Release 3en_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-7021-5838en_US
dcterms.creatorhttps://orcid.org/0000-0002-6548-5622en_US
dcterms.creatorhttps://orcid.org/0000-0002-8090-6528en_US

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