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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Monitoring of the radio galaxy M 87 during a low-emission state from 2012 to 2015 with MAGIC
Monthly Notices of the Royal Astronomical Society, Volume 492, No. 4, Year 2020
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Description
M 87 is one of the closest (z = 0.004 36) extragalactic sources emitting at very high energies (VHE, E > 100 GeV). The aim of this work is to locate the region of the VHE gamma-ray emission and to describe the observed broad-band spectral energy distribution (SED) during the low VHE gamma-ray state. The data from M 87 collected between 2012 and 2015 as part of a MAGIC monitoring programme are analysed and combined with multiwavelength data from Fermi-LAT, Chandra, HST, EVN, VLBA, and the Liverpool Telescope. The averaged VHE gamma-ray spectrum can be fitted from ∼100 GeV to ∼10 TeV with a simple power law with a photon index of (−2.41 ± 0.07), while the integral flux above 300 GeV is (1.44 ± 0.13) × 10−12 cm−2 s−1. During the campaign between 2012 and 2015, M 87 is generally found in a low-emission state at all observed wavelengths. The VHE gamma-ray flux from the present 2012–2015M 87 campaign is consistent with a constant flux with some hint of variability (∼ 3 σ) on a daily time-scale in 2013. The low-state gamma-ray emission likely originates from the same region as the flare-state emission. Given the broad-band SED, both a leptonic synchrotron self-Compton and a hybrid photohadronic model reproduce the available data well, even if the latter is preferred. We note, however, that the energy stored in the magnetic field in the leptonic scenario is very low, suggesting a matter-dominated emission region. © 2020 The Author(s).
Authors & Co-Authors
Acciari, Victor A.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Ansoldi, Stefano
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Antonelli, Lucio Angelo
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Arbet-Engels, Axel
Switzerland, Zurich
Eth Zürich
Arcaro, Cornelia H.E.
South Africa, Potchefstroom
North-west University
Italy, Padua
Osservatorio Astronomico Di Padova
Baack, Dominik
Germany, Dortmund
Technische Universität Dortmund
Babić, Ana
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
Banerjee, Biswajit
India, Kolkata
Saha Institute of Nuclear Physics
Bangale, Priyadarshini
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Barres de Almeida, Ulisses
Brazil, Rio de Janeiro
Centro Brasileiro de Pesquisas Físicas
Barrio, Juan Abel
Spain, Madrid
Universidad Complutense de Madrid
Becerra González, Josefa
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Bednarek, Włodzimierz
Poland, Lodz
University of Lodz
Bellizzi, Letizia K.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Bernardini, Elisa
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Berti, Alessio
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
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
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Bošnjak, Željka M.
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
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
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Chai, Yating
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Chilingaryan, Ashot A.
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Cikota, Stefan
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
Colak, S. M.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Colin, U.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Colombo, E.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
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’Elia, Valerio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
da Vela, Paolo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Dazzi, Francesco
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
De Angelis, Alessandro D.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
De Lotto, Barbara
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Delfino, Manuel C.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Spain, Cerdanyola Del Valles
Pic
Delgado, J.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Spain, Cerdanyola Del Valles
Pic
Depaoli, Davide
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
Di Pierro, F.
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
Di Venere, Leonardo
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
do Souto Espiñeira, Elia
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Dominis-Prester, Dijana
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
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
Finland, Oulu
Oulun Yliopisto
Fattorini, Alicia
Germany, Dortmund
Technische Universität Dortmund
Fernandez-Barral, Alba
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Ferrara, Giovanna
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Fidalgo, David Carreto
Spain, Madrid
Universidad Complutense de Madrid
Foffano, Luca
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Fonseca, M. V.
Spain, Madrid
Universidad Complutense de Madrid
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
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
García López, Ramón J.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
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, Frascati
Infn, Laboratori Nazionali Di Frascati
Giordano, Francesco
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
Godinović, Nikola
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
Green, David M.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Guberman, D.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Hadasch, Daniela
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Hahn, A.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Herrera, Juan Carlos Helo
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Hoang, John K.
Spain, Madrid
Universidad Complutense de Madrid
Hrupec, Dario
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
Hütten, Moritz
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Inada, Tomohiro
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Inoue, Susumu
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Ishio, Kazuma
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Iwamura, Yuki
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
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, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Kushida, Junko
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Lamastra, Alessandra
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Lelas, Damir
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
Leone, Francesco
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Lindfors, Elina J.
Finland, Turku
Turun Yliopisto
Finland, Oulu
Oulun 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-Moya, Marcos
Spain, Madrid
Universidad Complutense de Madrid
López-Coto, Rubén
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
López-Oramas, Alicia
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Loporchio, S.
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
MacHado de Oliveira Fraga, B.
Brazil, Rio de Janeiro
Centro Brasileiro de Pesquisas Físicas
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
Mallamaci, Manuela
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Maneva, Galina M.
Bulgaria, Sofia
The Bulgarian Academy of Sciences
Manganaro, Marina
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
Mannheim, Karl
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Maraschi, Laura
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Mariotti, M.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Martínez, Manel
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Mazin, Daniel
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Minev, Milen S.
Bulgaria, Sofia
The Bulgarian Academy of Sciences
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
Moretti, Elena
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Munar-Adrover, Pere
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Neustroev, Vitaly V.
Finland, Turku
Turun Yliopisto
Finland, Oulu
Oulun Yliopisto
Nilsson, Kari
Finland, Turku
Turun Yliopisto
Finland, Oulu
Oulun Yliopisto
Nishijima, Kyoshi
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Noda, Koji
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Nogués, Leyre
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Noethe, Maximilian
Germany, Dortmund
Technische Universität Dortmund
Paiano, Simona
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Palacio, Joaquim
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
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
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
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, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
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
Schweizer, Thomas
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Sitarek, Julian
Poland, Lodz
University of Lodz
Sobczyńska, Dorota
Poland, Lodz
University of Lodz
Somero, Auni
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Stamerra, Antonio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Takahashi, Mitsunari N.
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Tavecchio, Fabrizio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Terzić, Tomislav
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Croatia, Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Croatia, Zagreb
University of Zagreb, Faculty of Electrical Engineering and Computing
Croatia, Osijek
Sveučilište Josipa Jurja Strossmayera u Osijeku
Croatia, Zagreb
Institut Ruđer Bošković
Teshima, Masahiro
Japan, Tokyo
The University of Tokyo
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokai University
Japan, Wako
Riken
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Vazquez Acosta, Monica
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Vigorito, Carlo Francesco
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
Vitale, V.
Italy, Frascati
Infn, Laboratori Nazionali Di Frascati
Vovk, Ievgen
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Asano, Katsuaki
Japan, Tokyo
The University of Tokyo
Hada, Kazuhiro
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Japan, Hayama
The Graduate University for Advanced Studies
Harris, Daniel E.
United States, Cambridge
Smithsonian Astrophysical Observatory
Giroletti, Marcello
Italy, Bologna
Istituto Di Radioastronomia, Bologna
Jermak, Helen E.
United Kingdom, Liverpool
Liverpool John Moores University
Madrid, Juan P.
United States, Brownsville
The University of Texas Rio Grande Valley
Massaro, Francesco
Italy, Turin
Università Degli Studi Di Torino
Italy, Turin
Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Italy, Turin
Consorzio Interuniversitario Per la Fisica Spaziale Cifs
Richter, Stephan
South Africa, Potchefstroom
North-west University
Spanier, Felix
South Africa, Potchefstroom
North-west University
Germany, Heidelberg
Universität Heidelberg
Steele, Iain A.
United Kingdom, Liverpool
Liverpool John Moores University
Walker, Robert Craig
United States, Socorro
National Radio Astronomy Observatory Socorro
Statistics
Citations: 26
Authors: 157
Affiliations: 49
Identifiers
Doi:
10.1093/mnras/staa014
ISSN:
00358711
Research Areas
Environmental