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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes
Astrophysical Journal Letters, Volume 723, No. 2 PART 2, Year 2010
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Description
We report on the detection with the MAGIC telescopes of very high energy (VHE) γ -rays from IC 310, a head-tail radio galaxy in the Perseus galaxy cluster, observed during the interval 2008 November to 2010 February. The Fermi satellite has also detected this galaxy. The source is detected by MAGIC at a high statistical significance of 7.6σ in 20.6 hr of stereo data. The observed spectral energy distribution is flat with a differential spectral index of -2.00 ± 0.14. The mean flux above 300 GeV, between 2009 October and 2010 February, (3.1 ± 0.5)×10-12 cm-2 s -1, corresponds to (2.5 ± 0.4)% of Crab Nebula units. Only an upper limit, of 1.9% ofCrab Nebula units above 300 GeV,was obtained with the 2008 data. This, together with strong hints (>3σ) of flares in themiddle of 2009 October and November, implies that the emission is variable. TheMAGIC results favor a scenario with the VHE emission originating from the inner jet close to the central engine. More complicated models than a simple one-zone synchrotron self-Compton (SSC) scenario, e.g., multi-zone SSC, external Compton, or hadronic, may be required to explain the very flat spectrum and its extension overmore than three orders ofmagnitude in energy. © 2010. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Aleksíc, Jelena
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Antonelli, Lucio Angelo
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Antoranz, Pedro
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Backes, Michael
Germany, Dortmund
Technische Universität Dortmund
Barrio, Juan Abel
Spain, Madrid
Universidad Complutense de Madrid
Bastieri, D.
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
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
Berdyugin, Andrei V.
Finland, Turku
Turun Yliopisto
Berger, Karsten
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Bernardini, Elisa
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Biland, Adrian
Switzerland, Zurich
Eth Zürich
Blanch, Oscar
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Bock, Rudolf K.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Bonnoli, Giacomo
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Bordas, Pol
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Bosch-Ramón, Valentí
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Bose, Debanjan
Spain, Madrid
Universidad Complutense de Madrid
Braun, Isabel
Switzerland, Zurich
Eth Zürich
Bretz, Thomas
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Carosi, Alessandro
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Colin, Pierre
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Colombo, E.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Contreras, José Luis
Spain, Madrid
Universidad Complutense de Madrid
Cortina, J.
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Covino, Stefano
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Dazzi, Francesco
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
De Angelis, Alessandro D.
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
De Lotto, Barbara
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Doert, Marlene
Germany, Dortmund
Technische Universität Dortmund
Domínguez, A. D.
Spain, Madrid
Consejo Superior de Investigaciones Científicas
Dominis-Prester, Dijana
Croatia, Split
University of Split
Dorner, Daniela
Switzerland, Zurich
Eth Zürich
Doro, Michele
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Elsässer, Dominik
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Errando, Manel
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Ferenc, Daniela
Croatia, Split
University of Split
Fonseca, M. V.
Spain, Madrid
Universidad Complutense de Madrid
Font, Ll L.
Spain, Cerdanyola Del Valles
Universitat Autònoma de Barcelona
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
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Giavitto, Gianluca
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Godinović, Nikola
Croatia, Split
University of Split
Hadasch, Daniela
Spain, Barcelona
Csic - Instituto de Ciencias Del Espacio Ice
Herrero Davó, Artemio Alonso
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Hildebrand, Dorothée
Switzerland, Zurich
Eth Zürich
Hose, Juergen
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Hrupec, Dario
Croatia, Split
University of Split
Jogler, Tobias
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Klepser, Stefan
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Kranich, Daniel
Switzerland, Zurich
Eth Zürich
La Barbera, Antonino
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Lindfors, Elina J.
Finland, Turku
Turun Yliopisto
Lombardi, Saverio
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Longo, Francesco
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
López-Moya, Marcos
Spain, Madrid
Universidad Complutense de Madrid
Lorenz, Eckhart
Switzerland, Zurich
Eth Zürich
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Majumdar, Pratik
Germany, Hamburg
Deutsches Elektronen-synchrotron Desy
Makariev, M. V.
Bulgaria, Sofia
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
Maneva, Galina M.
Bulgaria, Sofia
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
Mankuzhiyil, Nijil
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Mannheim, Karl
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Maraschi, Laura
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Mariotti, M.
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Martínez, Manel
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Mazin, Daniel
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Meucci, Mario
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Mirzoyan, Razmik G.
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Miyamoto, Hiroko
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Moldón, Javier
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Moralejo, Abelardo
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Nieto, Daniel
Spain, Madrid
Universidad Complutense de Madrid
Nilsson, Kari
Finland, Turku
Turun Yliopisto
Oya, Igor
Spain, Madrid
Universidad Complutense de Madrid
Paoletti, Riccardo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Paredes, Josep Maria
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Pasanen, Mikko
Finland, Turku
Turun Yliopisto
Pauss, Felicitas
Switzerland, Zurich
Eth Zürich
Pegna, Raffaello G.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Pérez-Torres, M. A.
Spain, Madrid
Consejo Superior de Investigaciones Científicas
Persic, Massimo
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Osservatorio Astronomico Di Trieste
Peruzzo, Luigi
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Prada, Francisco
Spain, Madrid
Consejo Superior de Investigaciones Científicas
Prada Moroni, Pier Giorgio
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Prandini, Elisa
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Puljak, Ivica
Croatia, Split
University of Split
Reinthal, Riho
Finland, Turku
Turun Yliopisto
Rhode, Wolfgang
Germany, Dortmund
Technische Universität Dortmund
Ribó, Marc
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Rico, Javier R.
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Spain, Barcelona
Institució Catalana de Recerca I Estudis Avançats
Saggion, Antonio
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Sánchez-Conde, Miguel A. A.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Scalzotto, Villi
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Schweizer, Thomas
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Shayduk, Maxim
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Shore, Steven N.
Italy, Pisa
Università Di Pisa
Sillanp̈äa, Aimo K.
Finland, Turku
Turun Yliopisto
Sitarek, Julian
Poland, Lodz
University of Lodz
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Sobczyńska, Dorota
Poland, Lodz
University of Lodz
Spanier, Felix
Germany, Wurzburg
Julius-maximilians-universität Würzburg
Spiro, Susanna
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Stamerra, Antonio
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Takalo, Leo O.
Finland, Turku
Turun Yliopisto
Tavecchio, Fabrizio
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Terzić, Tomislav
Croatia, Split
University of Split
Teshima, Masahiro
Germany, Munich
Max Planck Institute for Physics Werner Heisenberg Institute
Torres, Diego F.
Spain, Barcelona
Csic - Instituto de Ciencias Del Espacio Ice
Spain, Barcelona
Institució Catalana de Recerca I Estudis Avançats
Zabalza, Víctor
Spain, Barcelona
Instituto de Estudios Espaciales de Cataluña
Zanin, Roberta
Spain, Cerdanyola Del Valles
Institut de Física D'altes Energies, Bellaterra
Neronov, Andrii Yu
Switzerland, Geneva
Faculty of Science
Pfrommer, Christoph
Germany, Heidelberg
Heidelberg Institute for Theoretical Studies Hits Gmbh
Canada, Toronto
University of Toronto
Statistics
Citations: 96
Authors: 111
Affiliations: 30
Identifiers
Doi:
10.1088/2041-8205/723/2/L207
ISSN:
20418205
Research Areas
Environmental