Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Multiwavelength Observations of the Blazar VER J0521+211 during an Elevated TeV Gamma-Ray State
Astrophysical Journal, Volume 932, No. 2, Article 129, Year 2022
Notification
URL copied to clipboard!
Description
We report on a long-lasting, elevated gamma-ray flux state from VER J0521+211 observed by VERITAS, MAGIC, and Fermi-LAT in 2013 and 2014. The peak integral flux above 200 GeV measured with the nightly binned light curve is (8.8 ± 0.4) × 10-7 photons m-2 s-1, or ∼37% of the Crab Nebula flux. Multiwavelength observations from X-ray, UV, and optical instruments are also presented. A moderate correlation between the X-ray and TeV gamma-ray fluxes was observed, and the X-ray spectrum appeared harder when the flux was higher. Using the gamma-ray spectrum and four models of the extragalactic background light (EBL), a conservative 95% confidence upper limit on the redshift of the source was found to be z ≤ 0.31. Unlike the gamma-ray and X-ray bands, the optical flux did not increase significantly during the studied period compared to the archival low-state flux. The spectral variability from optical to X-ray bands suggests that the synchrotron peak of the spectral energy distribution (SED) may become broader during flaring states, which can be adequately described with a one-zone synchrotron self-Compton model varying the high-energy end of the underlying particle spectrum. The synchrotron peak frequency of the SED and the radio morphology of the jet from the MOJAVE program are consistent with the source being an intermediate-frequency-peaked BL Lac object. © 2022. The Author(s). Published by the American Astronomical Society.
Authors & Co-Authors
Adams, Colin B.
United States, New York
Columbia University
Batista, P. I.
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Benbow, Wystan R.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Brill, Aryeh
United States, Washington, D.c.
National Aeronautics and Space Administration
Brose, Robert
Germany, Potsdam
Universität Potsdam
Buckley, James H.
United States, St. Louis
Washington University in St. Louis
Capasso, Massimo
United States, New York
Columbia University
Christiansen, Jodi L.
United States, San Luis Obispo
California Polytechnic State University, San Luis Obispo
Errando, Manel
United States, St. Louis
Washington University in St. Louis
Feng, Qi
United States, New York
Columbia University
Finley, John P.
United States, West Lafayette
Purdue University
Foote, Gregory M.
United States, Newark
University of Delaware
Fortson, Lucy F.
United States, Minneapolis
University of Minnesota Twin Cities
Furniss, Amy K.
United States, Hayward
California State University, East Bay
Gent, Alasdair E.
United States, Atlanta
Georgia Institute of Technology
Giuri, Chiara
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Hanna, David S.
Canada, Montreal
Université Mcgill
Hassan, T.
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Hervet, Olivier
United States, Santa Cruz
University of California, Santa Cruz
Holder, Jamie A.
United States, Newark
University of Delaware
Hughes, Gareth A.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Humensky, T. B.
United States, New York
Columbia University
Jin, Weidong
United States, Tuscaloosa
The University of Alabama
Kaaret, Phillip E.
United States, Iowa City
University of Iowa
Kertzman, M. P.
United States, Greencastle
Depauw University
Kieda, David B.
United States, Salt Lake City
The University of Utah
Kleiner, T. K.
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Krennrich, Frank
United States, Ames
Iowa State University
Kumar, Sajan
Canada, Montreal
Université Mcgill
Lang, Mark J.
Ireland, Galway
University of Galway
Lundy, Matthew
Canada, Montreal
Université Mcgill
Maier, Gernot
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Millis, John P.
United States, Muncie
Ball State University
Moriarty, P.
Ireland, Galway
University of Galway
Mukherjee, Reshmi
United States, New York
Columbia University
Nievas-Rosillo, M.
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
O'Brien, Stephan
Canada, Montreal
Université Mcgill
Ong, RenéA A.
United States, Los Angeles
University of California, Los Angeles
Otte, Adam Nepomuk
United States, Atlanta
Georgia Institute of Technology
Patel, S. R.
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Pfrang, Konstantin
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Pohl, Martin
Germany, Potsdam
Universität Potsdam
Prado, Raul R.
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Pueschel, Elisa
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Quinn, John
Ireland, Dublin
University College Dublin
Ragan, K. J.
Canada, Montreal
Université Mcgill
Reynolds, P. T.
Ireland, Bishopstown
Munster Technological University Mtu
Ribeiro, Deivid
United States, New York
Columbia University
Roache, Emmet T.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Ryan, James L.
United States, Los Angeles
University of California, Los Angeles
Sadeh, Iftach H.
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Santander, Marcos
United States, Tuscaloosa
The University of Alabama
Sembroski, Glenn H.
United States, West Lafayette
Purdue University
Tucci, J. V.
United States, Indianapolis
Indiana University-purdue University Indianapolis
Vassiliev, Vladimir V.
United States, Los Angeles
University of California, Los Angeles
Wakely, Scott P.
United States, Chicago
The University of Chicago
Weinstein, Amanda
United States, Ames
Iowa State University
Williams, David A.
United States, Santa Cruz
University of California, Santa Cruz
Williamson, Tyler J.
United States, Newark
University of Delaware
Acciari, Victor A.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Ansoldi, Stefano
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Rome
International Center for Relativistic Astrophysics
Antonelli, Lucio Angelo
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Arcaro, Cornelia H.E.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Asano, Katsuaki
Japan, Tokyo
The University of Tokyo
Baack, Dominik
Germany, Dortmund
Technische Universität Dortmund
Babić, Ana
Croatia, Zagreb
University of Zagreb
Baquero Larriva, A.
Spain, Madrid
Universidad Complutense de Madrid
de Almeida, Ulisses Barres
Brazil, Rio de Janeiro
Centro Brasileiro de Pesquisas Físicas
Barrio, Juan Abel
Spain, Madrid
Universidad Complutense de Madrid
Batković, Ivana
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Becerra González, Josefa
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Bednarek, Włodzimierz
Poland, Lodz
University of Lodz
Bernardos, Maria Isabel
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Berti, Alessio
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Besenrieder, Jüergen
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Bhattacharyya, Wrijupan
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Bigongiari, C.
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Biland, Adrian
Switzerland, Zurich
Eth Zürich
Blanch, Oscar
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Bonnoli, Giacomo
Spain, Madrid
Consejo Superior de Investigaciones Científicas
Busetto, Giovanni
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Carosi, Roberto
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Ceribella, Giovanni
Japan, Tokyo
The University of Tokyo
Cerruti, Matteo
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Chai, Yating
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Chilingarian, A. A.
Armenia, Yerevan
Yerevan Physics Institute
Cikota, Stefan
Croatia, Zagreb
University of Zagreb
Colombo, E.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Contreras, José Luis
Spain, Madrid
Universidad Complutense de Madrid
Cortina, J.
Spain, Madrid
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Covino, Stefano
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
D'Amico, Giacomo
Norway, Bergen
Universitetet I Bergen
D'Elia, Valerio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Dazzi, Francesco
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
De Angelis, Alessandro D.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Delfino, Manuel C.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Delgado, J.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Depaoli, Davide
Italy, Turin
Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino
Di Venere, Leonardo
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Prester, Dijana Dominis
Croatia, Rijeka
University of Rijeka
Donini, Alice
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Dorner, Daniela
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Doro, Michele
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Elsässer, Dominik
Germany, Dortmund
Technische Universität Dortmund
Fallah Ramazani, Vandad
Finland, Turku
Turun Yliopisto
Germany, Bochum
Ruhr-universitat Bochum
Fattorini, Alicia
Germany, Dortmund
Technische Universität Dortmund
Font, Ll L.
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Fruck, Christian
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Fukami, Satoshi
Switzerland, Zurich
Eth Zürich
Fukazawa, Yasushi
Japan, Higashihiroshima
Hiroshima University
Garczarczyk, Markus
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Gasparyan, Sargis
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Gaug, Markus
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Giglietto, Nicola
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Giordano, Francesco
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Godinović, Nikola
Croatia, Split
University of Split
Green, Jarred Gershon
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Green, David M.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Hadasch, Daniela
Japan, Tokyo
The University of Tokyo
Hahn, A.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Hassan, Tarek
Spain, Madrid
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Herrera, Juan Carlos Helo
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Hrupec, Dario
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Hütten, Moritz
Japan, Tokyo
The University of Tokyo
Inada, Tomohiro
Japan, Tokyo
The University of Tokyo
Iotov, Roman
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Ishio, Kazuma
Poland, Lodz
University of Lodz
Iwamura, Yuki
Japan, Tokyo
The University of Tokyo
Jouvin, Léa
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Kerszberg, Daniel
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Kubo, Hidetoshi
Japan, Kyoto
Kyoto University
Kushida, Junko
Japan, Tokyo
Tokai University
Lamastra, Alessandra
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Lelas, Damir
Croatia, Split
University of Split
Leone, Francesco
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Lindfors, Elina J.
Finland, Turku
Turun Yliopisto
Lombardi, Saverio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Longo, Francesco
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Università Degli Studi Di Trieste
López-Coto, Rubén
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
López-Moya, Marcos
Spain, Madrid
Universidad Complutense de Madrid
López-Oramas, Alicia
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Loporchio, S.
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Maggio, Camilla
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Majumdar, Pratik
India, Kolkata
Saha Institute of Nuclear Physics
Makariev, M. V.
Bulgaria, Sofia
The Bulgarian Academy of Sciences
Maneva, Galina M.
Bulgaria, Sofia
The Bulgarian Academy of Sciences
Manganaro, Marina
Croatia, Rijeka
University of Rijeka
Mannheim, Karl
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Mariotti, M.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Mazin, Daniel
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Japan, Tokyo
The University of Tokyo
Mirzoyan, Razmik G.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Moralejo, Abelardo
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Moreno, Victòria
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Nakamori, Takeshi
Japan, Yamagata
Yamagata University
Nava, Lara
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Neustroev, Vitaly V.
Finland, Oulu
Oulun Yliopisto
Nilsson, Kari
Finland, Turku
Turun Yliopisto
Nishijima, Kyoshi
Japan, Tokyo
Tokai University
Noda, Koji
Japan, Tokyo
The University of Tokyo
Paiano, Simona
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Palatiello, Michele
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Paneque, David
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Paoletti, Riccardo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Paredes, Josep Maria
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Persic, Massimo
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Osservatorio Astronomico Di Trieste
Prada Moroni, Pier Giorgio
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Prandini, Elisa
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Puljak, Ivica
Croatia, Split
University of Split
Rhode, Wolfgang
Germany, Dortmund
Technische Universität Dortmund
Ribó, Marc
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Rico, Javier R.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Righi, Chiara
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Sahakyan, Narek V.
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Saturni, Francesco Gabriele
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Schleicher, Bernd
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Schweizer, Thomas
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Sitarek, Julian
Japan, Tokyo
The University of Tokyo
Sobczyńska, Dorota
Poland, Lodz
University of Lodz
Stamerra, Antonio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Tavecchio, Fabrizio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Terzić, Tomislav
Croatia, Rijeka
University of Rijeka
Teshima, Masahiro
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Japan, Tokyo
The University of Tokyo
Tutone, A.
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Vazquez Acosta, Monica
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Vigorito, Carlo Francesco
Italy, Turin
Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino
Vitale, V.
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Vovk, Ievgen
Japan, Tokyo
The University of Tokyo
Statistics
Citations: 4
Authors: 187
Affiliations: 70
Identifiers
Doi:
10.3847/1538-4357/ac6dd9
ISSN:
0004637X