The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope

被引：220

作者：

Ajello, M. ^{[1
]}

Angioni, R. ^{[2
,3
]}

Axelsson, M. ^{[4
,5
]}

Ballet, J. ^{[6
]}

Barbiellini, G. ^{[7
,8
]}

Bastieri, D. ^{[9
,10
]}

Becerra Gonzalez, J. ^{[11
]}

Bellazzini, R. ^{[12
]}

Bissaldi, E. ^{[13
,14
]}

Bloom, E. D. ^{[15
,16
]}

Bonino, R. ^{[17
,18
]}

Bottacini, E. ^{[15
,16
,19
]}

Bruel, P. ^{[20
]}

Buson, S. ^{[21
]}

Cafardo, F. ^{[22
]}

Cameron, R. A. ^{[15
,16
]}

Cavazzuti, E. ^{[23
]}

Chen, S. ^{[9
,19
]}

Cheung, C. C. ^{[24
]}

Ciprini, S. ^{[2
,3
]}

Costantin, D. ^{[25
]}

Cutini, S. ^{[26
]}

D'Ammando, F. ^{[27
]}

Luque, P. de la Torre ^{[13
]}

de Menezes, R. ^{[18
,22
]}

de Palma, F. ^{[17
]}

Desai, A. ^{[1
]}

Di Lalla, N. ^{[15
,16
]}

Di Venere, L. ^{[13
,14
]}

Dominguez, A. ^{[28
]}

Dirirsa, F. Fana ^{[29
]}

Ferrara, E. C. ^{[30
]}

Finke, J. ^{[24
]}

Franckowiak, A. ^{[31
]}

Fukazawa, Y. ^{[32
]}

Funk, S. ^{[33
]}

Fusco, P. ^{[13
,14
]}

Gargano, F. ^{[14
]}

Garrappa, S. ^{[31
]}

Gasparrini, D. ^{[2
,3
]}

Giglietto, N. ^{[13
,14
]}

Giordano, F. ^{[13
,14
]}

Giroletti, M. ^{[27
]}

Green, D. ^{[34
]}

Grenier, I. A. ^{[6
]}

Guiriec, S. ^{[30
,35
]}

Harita, S. ^{[36
]}

Hays, E. ^{[30
]}

Horan, D. ^{[20
]}

Itoh, R. ^{[37
]}

机构：

[1] Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA

[2] Agenzia Spaziale Italiana, Space Sci Data Ctr, Via Politecn Snc, I-00133 Rome, Italy

[3] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[4] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden

[5] KTH Royal Inst Technol, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden

[6] Univ Paris Saclay, Univ Paris Diderot, Sorbonne Paris Cite, CNRS,AIM,CEA, F-91191 Gif Sur Yvette, France

[7] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy

[8] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

[9] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[10] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy

[11] Inst Astrofis Canarias, Observ Teide, C Via Lactea S-N, E-38205 Tenerife, Spain

[12] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy

[13] Univ & Politecn Bari, Dipartimento Fis M Merlin, Via Amendola 173, I-70126 Bari, Italy

[14] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[15] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA

[16] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA

[17] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[18] Univ Torino, Dipartimento Fis, I-10125 Turin, Italy

[19] Univ Padua, Dept Phys & Astron, Vicolo Observ 3, I-35122 Padua, Italy

[20] Ecole Polytech, IN2P3, CNRS, Lab Leprince Ringuet, F-91128 Palaiseau, France

[21] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany

[22] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Rua Matao 1226, BR-05508090 Sao Paulo, SP, Brazil

[23] Italian Space Agcy, Via Politecn Snc, I-00133 Rome, Italy

[24] Naval Res Lab, Space Sci Div, Washington, DC 20375 USA

[25] Univ Padua, Dept Stat Sci, Via 8 Febbraio,2, I-35122 Padua, Italy

[26] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy

[27] INAF, Ist Radioastron, I-40129 Bologna, Italy

[28] Univ Complutense Madrid, Grp Altas Energias, E-28040 Madrid, Spain

[29] Univ Johannesburg, Dept Phys, POB 524, ZA-2006 Auckland Pk, South Africa

[30] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[31] DESY, D-15738 Zeuthen, Germany

[32] Hiroshima Univ, Dept Phys Sci, Higashihiroshima, Hiroshima 7398526, Japan

[33] Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany

[34] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[35] George Washington Univ, Dept Phys, 725 21st St NW, Washington, DC 20052 USA

[36] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan

[37] Bisei Astron Observ, 1723-70 Ookura,Bisei Cho, Ibara, Okayama 7141411, Japan

[38] Univ Iceland, Sci Inst, IS-107 Reykjavik, Iceland

[39] Royal Inst Technol, NORDITA, Roslagstullsbacken 23, S-10691 Stockholm, Sweden

[40] Stockholm Univ, Roslagstullsbacken 23, S-10691 Stockholm, Sweden

[41] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[42] North West Univ, Ctr Space Res, Potchefstroom Campus,Private Bag X6001, ZA-2520 Potchefstroom, South Africa

[43] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden

[44] Dalarna Univ, Sch Educ Hlth & Social Studies, Nat Sci, SE-79188 Falun, Sweden

[45] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France

[46] Univ Pisa, I-56127 Pisa, Italy

[47] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria

[48] Ist Nazl Astrofis, Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, Italy

[49] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy

[50] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy

来源：

ASTROPHYSICAL JOURNAL | 2020年 / 892卷 / 02期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

Active galactic nuclei; Blazars; Gamma-ray sources; Relativistic jets; Quasars; BL Lacertae objects; EXTRAGALACTIC BACKGROUND LIGHT; ALL-SKY SURVEY; RADIO-SOURCES; RAY; SPECTRUM; ABSORPTION; FLARE;

D O I：

10.3847/1538-4357/ab791e

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains . It includes 85% more sources than the previous 3LAC catalog based on 4 yr of data. AGNs represent at least 79% of the high-latitude sources in the fourth Fermi-Large Area Telescope Source Catalog (4FGL), which covers the energy range from 50 MeV to 1 TeV. In addition, gamma-ray AGNs are found at low Galactic latitudes. Most of the 4LAC AGNs are blazars (98%), while the remainder are other types of AGNs. The blazar population consists of 24% Flat Spectrum Radio Quasars (FSRQs), 38% BL Lac-type objects, and 38% blazar candidates of unknown types (BCUs). On average, FSRQs display softer spectra and stronger variability in the gamma-ray band than BL Lacs do, confirming previous findings. All AGNs detected by ground-based atmospheric Cerenkov telescopes are also found in the 4LAC.

引用

页数：23

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