First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autorinnen und Autoren: Ahnen ML, Ansoldi S, Antonelli LA, Arcaro C, Babic A, Banerjee B, Bangale P, De Almeida UB, Barrio JA, Becerra Gonzalez J, Bednarek W, Bernardini E, Berti A, Biasuzzi B, Biland A, Blanch O, Bonnefoy S, Bonnoli G, Borracci F, Bretz T, Carosi R, Carosi A, Chatterjee A, Colin P, Colombo E, Contreras JL, Cortina J, Covino S, Cumani P, Da Vela P, Dazzi F, De Angelis A, De Lotto B, De Ona Wilhelmi E, Di Pierro F, Doert M, Dominguez A, Prester DD, Dorner D, Doro M, Einecke S, Glawion DE, Elsaesser D, Engelkemeier M, Ramazani VF, Fernandez-Barral A, Fidalgo D, Fonseca MV, Font L, Fruck C, Galindo D, Lopez RJG, Garczarczyk M, Gaug M, Giammaria P, Godinovic N, Gora D, Guberman D, Hadasch D, Hahn A, Hassan T, Hayashida M, Herrera J, Hose J, Hrupec D, Hughes G, Idec W, Ishio K, Kodani K, Konno Y, Kubo H, Kushida J, Lelas D, Lindfors E, Lombardi S, Longo F, Lopez M, Majumdar P, Makariev M, Mallot K, Maneva G, Manganaro M, Mannheim K, Maraschi L, Mariotti M, Martinez M, Mazin D, Menzel U, Mirzoyan R, Moralejo A, Moretti E, Nakajima D, Neustroev V, Niedzwiecki A, Rosillo MN, Nilsson K, Nishijima K, Noda K, Nogues L, Nothe M, Paiano S, Palacio J, Palatiello M, Paneque D, Paoletti R, Paredes JM, Paredes-Fortuny X, Pedaletti G, Peresano M, Perri L, Persic M, Poutanen J, Moroni PGP, Prandini E, Puljak I, Garcia JR, Reichardt I, Rhode W, Ribo M, Rico J, Saito T, Satalecka K, Schroeder S, Schweizer T, Shore SN, Sillanpaa A, Sitarek J, Snidaric I, Sobczynska D, Stamerra A, Strzys M, Suric T, Takalo L, Tavecchio F, Temnikov P, Terzic T, Tescaro D, Teshima M, Torres DF, Torres-Alba N, Toyama T, Treves A, Vanzo G, Vazquez Acosta M, Vovk I, Ward JE, Will M, Wu MH, Krauss F, Schulz R, Kadler M, Wilms J, Ros E, Bach U, Beuchert T, Langejahn M, Wendel C, Gehrels N, Baumgartner WH, Markwardt CB, Muller C, Grinberg V, Hovatta T, Magill J
Zeitschrift: Astronomy & Astrophysics
Jahr der Veröffentlichung: 2017
Band: 603
ISSN: 1432-0746


Context. The extragalactic very-high-energy gamma-ray sky is rich in blazars. These are jetted active galactic nuclei that are viewed at a small angle to the line-of-sight. Only a handful of objects viewed at a larger angle are so far known to emit above 100 GeV. Multi-wavelength studies of such objects up to the highest energies provide new insights into the particle and radiation processes of active galactic nuclei.Aims. We aim to report the results from the first multi-wavelength campaign observing the TeV detected nucleus of the active galaxy IC 310, whose jet is observed at a moderate viewing angle of 10 degrees-20 degrees.Methods. The multi-instrument campaign was conducted between 2012 November and 2013 January, and involved observations with MAGIC, Fermi, INTEGRAL, Swift, OVRO, MOJAVE and EVN. These observations were complemented with archival data from the AllWISE and 2MASS catalogs. A one-zone synchrotron self-Compton model was applied to describe the broadband spectral energy distribution.Results. IC 310 showed an extraordinary TeV flare at the beginning of the campaign, followed by a low, but still detectable TeV flux. Compared to previous measurements in this energy range, the spectral shape was found to be steeper during the low emission state. Simultaneous observations in the soft X-ray band showed an enhanced energy flux state and a harder-when-brighter spectral shape behavior. No strong correlated flux variability was found in other frequency regimes. The broadband spectral energy distribution obtained from these observations supports the hypothesis of a double-hump structure.Conclusions. The harder-when-brighter trend in the X-ray and VHE emission, observed for the first time during this campaign, is consistent with the behavior expected from a synchrotron self-Compton scenario. The contemporaneous broadband spectral energy distribution is well described with a one-zone synchrotron self-Compton model using parameters that are comparable to those found for other gamma-ray-emitting misaligned blazars.

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Wilms, Jörn Prof. Dr.
Professur für Astronomie und Astrophysik

Einrichtungen weiterer Autorinnen und Autoren

Aalto University
Autonomous University of Barcelona (UAB) / Universitat Autònoma de Barcelona
Deutsches Elektronen-Synchrotron DESY
École Polytechnique Fédérale de Lausanne (EPFL)
European Space Research and Technology Centre (ESTEC, ESA)
Institució Catalana de Recerca i Estudis Avançats (ICREA) / Catalan Institution for Research and Advanced Studies
Institute for Nuclear Researches and Nuclear Energy (INRNE) / Институт за ядрени изследвания и ядрена енергетика (ИЯИЯЕ)
Instituto de Astrofísica de Canarias (IAC)
Josip-Juraj-Strossmayer-Universität Osijek
Julius-Maximilians-Universität Würzburg
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut, MPP) / Max Planck Institute for Physics
Max-Planck-Institut für Radioastronomie / Max Planck Institute for Radio Astronomy
National Aeronautics and Space Administration (NASA)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Radboud University Nijmegen
Saha Institute of Nuclear Physics
Spanish National Research Council / Consejo Superior de Investigaciones Científicas (CSIC)
Technische Universität Dortmund
Universidad Complutense de Madrid (UCM)
Università degli Studi di Siena (UNISI) / University of Siena
Universitat de Barcelona (UB) / University of Barcelona
University of Amsterdam
University of Lodz / Uniwersytet Łódzki
University of Maryland
University of Padua / Universita degli Studi di Padova
University of Pisa / Università di Pisa (UniPi)
University of Tokyo
University of Turku / Turun yliopisto
University of Udine / Università degli Studi di Udine


Ahnen, M.L., Ansoldi, S., Antonelli, L.A., Arcaro, C., Babic, A., Banerjee, B.,... Magill, J. (2017). First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310. Astronomy & Astrophysics, 603.

Ahnen, M. L., et al. "First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310." Astronomy & Astrophysics 603 (2017).


Zuletzt aktualisiert 2019-12-06 um 22:08