NAOC Open IR
An Optical Overview of Blazars with LAMOST. I. Hunting Changing-look Blazars and New Redshift Estimates
Pena-Herazo, Harold A.1,2; Massaro, Francesco1,3,4,5; Gu, Minfeng6; Paggi, Alessandro4,5; Landoni, Marco7,8; D'Abrusco, Raffaele9; Ricci, Federica10,11; Masetti, Nicola11,12; Chavushyan, Vahram2
2021-04-01
Source PublicationASTRONOMICAL JOURNAL
ISSN0004-6256
Volume161Issue:4Pages:11
AbstractThe extragalactic gamma-rays sky observed by the Fermi Large Area Telescope (LAT) is dominated by blazars. In the fourth release of the Fermi LAT Point Source Catalog (4FGL) are sources showing a multifrequency behavior similar to that of blazars but lacking an optical spectroscopic confirmation of their nature, known as blazar candidates of uncertain type (BCUs). We aim at confirming the blazar nature of BCUs and test if new optical spectroscopic observations can reveal spectral features, allowing us to get a redshift estimate for known BL Lac objects. We also aim to search for and discover changing-look blazars (i.e., blazars that show a different classification at different epochs). We carry out an extensive search for optical spectra available in the Large Sky Area Multi-object Fibre Spectroscopic Telescope (LAMOST) Data Release 5 (DR5) archive. We select sources out of the 4FGL catalog, the list of targets from our follow-up spectroscopic campaign of unidentified or unassociated gamma-ray sources, and the multifrequency catalog of blazars: the Roma-BZCAT. We select a total of 392 spectra. We also compare some of the LAMOST spectra with those available in the literature. We classify 20 BCUs confirming their blazar-like nature. Then we obtain 15 new redshift estimates for known blazars. We discover 26 transitional (i.e., changing-look) blazars that changed their classification. Finally, we are able to confirm the blazar-like nature of six BL Lac candidates. All remaining sources analyzed agree with previous classifications. BL Lac objects are certainly the most elusive type of blazars in the gamma-ray extragalactic sky.
Funding OrganizationCONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; CONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; CONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; CONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington
DOI10.3847/1538-3881/abe41d
Language英语
Funding ProjectCONACyT[280789] ; National Science Foundation of China[11873073] ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR)[L. 232/2016] ; Ministry of Education, University and Research[MASF_FFABR_17_01] ; Consorzio Interuniversitario per la fisica Spaziale (CIFS)[MASF_CONTR_FIN_18_02] ; National Development and Reform Commission ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy ; Japanese Monbukagakusho ; Max Planck Society ; Higher Education Funding Council for England ; American Museum of Natural History ; Astrophysical Institute Potsdam ; University of Basel ; University of Cambridge ; Case Western Reserve University ; University of Chicago ; Drexel University ; Fermilab ; Institute for Advanced Study ; Japan Participation Group ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; Ohio State University ; University of Pittsburgh ; University of Portsmouth ; Princeton University ; United States Naval Observatory ; University of Washington
Funding OrganizationCONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; CONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; CONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; CONACyT ; CONACyT ; National Science Foundation of China ; National Science Foundation of China ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; "Departments of Excellence 2018-2022" grant - Italian Ministry of Education, University and Research (MIUR) ; Ministry of Education, University and Research ; Ministry of Education, University and Research ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; Consorzio Interuniversitario per la fisica Spaziale (CIFS) ; National Development and Reform Commission ; National Development and Reform Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astronomy (MPIA) ; Max Planck Institute for Astrophysics (MPA) ; Max Planck Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000632832400001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78581
Collection中国科学院国家天文台
Corresponding AuthorPena-Herazo, Harold A.
Affiliation1.Univ Torino, Dipartimento Fis, Via Pietro Giuria 1, I-10125 Turin, Italy
2.Inst Nacl Astrofis Opt & Electr, Apartado Postal 51-216, Puebla 72000, Mexico
3.Ist Nazl Fis Nucleare, Sez Torino, I-10125 Turin, Italy
4.INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, Italy
5.Consorzio Interuniv Fis Spaziale CIFS, Via Pietro Giuria 1, I-10125 Turin, Italy
6.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China
7.INAF Osservatorio Astron Cagliari, Via Sci 5, Selargius, CA, Italy
8.INAF Osservatorio Astron Brera, Via Emilio Bianchi 46, I-23807 Merate, Italy
9.Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
10.Univ Bologna, Dipartimento Fis & Astron, Via P Gobetti 93-2, I-40129 Bologna, Italy
11.INAF Osservatorio Astrofis & Sci Spazio, Via Gobetti 93-3, I-40129 Bologna, Italy
12.Univ Andres Bello, Dept Ciencias Fis, Fernandez Concha 700, Santiago, Chile
Recommended Citation
GB/T 7714
Pena-Herazo, Harold A.,Massaro, Francesco,Gu, Minfeng,et al. An Optical Overview of Blazars with LAMOST. I. Hunting Changing-look Blazars and New Redshift Estimates[J]. ASTRONOMICAL JOURNAL,2021,161(4):11.
APA Pena-Herazo, Harold A..,Massaro, Francesco.,Gu, Minfeng.,Paggi, Alessandro.,Landoni, Marco.,...&Chavushyan, Vahram.(2021).An Optical Overview of Blazars with LAMOST. I. Hunting Changing-look Blazars and New Redshift Estimates.ASTRONOMICAL JOURNAL,161(4),11.
MLA Pena-Herazo, Harold A.,et al."An Optical Overview of Blazars with LAMOST. I. Hunting Changing-look Blazars and New Redshift Estimates".ASTRONOMICAL JOURNAL 161.4(2021):11.
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