First multi-wavelength campaign on the gamma-ray- loud active galaxy IC 310 (CROSBI ID 240691)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Ahnen, M.L. ; Ansoldi, S. ; Antonelli, L.A. ; Arcaro, C. ; Babić, Ana ; Banerjee, B. ; Bangale, P. ; Barres de Almeida, U. ; Barrio, J.A. ; Becerra González, 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, J. L. ; Cortina, J. ; Covino, S. ; Cumani, P. ; Da Vela, P. ; Dazzi, F. ; De Angelis, A. ; De Lotto, B. ; de Oña Wilhelmi, E. ; Di Pierro, F. ; Doert, M. ; Domínguez, A. ; Dominis Prester, Dijana ; Dorner, D. ; Doro, M. ; Einecke, S. ; Eisenacher Glawion, D. ; Elsaesser, D. ; Engelkemeier, M. ; Fallah Ramazani, V. ; Fernández-Barral, A. ; Fidalgo, D. ; Fonseca, M. V. ; Font, L. ; Fruck, C. ; Galindo, D. ; García López, R. J. ; Garczarczyk, M. ; Gaug, M. ; Giammaria, P. ; Godinović, Nikola ; Gora, D. ; Guberman, D. ; Hadasch, D. ; Hahn, A. ; Hassan, T. ; Hayashida, M. ; Herrera, J. ; Hose, J. ; Hrupec, Dario ; Hughes, G. ; Idec, W. ; Ishio, K. ; Kodani, K. ; Konno, Y. ; Kubo, H. ; Kushida, J. ; Lelas, Damir ; Lindfors, E. ; Lombardi, S. ; Longo, F. ; López, M. ; Majumdar, P. ; Makariev, M. ; Mallot, K. ; Maneva, G. ; Manganaro, M. ; Mannheim, K. ; Maraschi, L. ; Mariotti, M. ; Martínez, M. ; Mazin, D. ; Menzel, U. ; Mirzoyan, R. ; Moralejo, A. ; Moretti, E. ; Nakajima, D. ; Neustroev, V. ; Niedzwiecki, A. ; Nievas Rosillo, M. ; Nilsson, K. ; Nishijima, K. ; Noda, K. ; Nogués, L. ; Nöthe, M. ; Paiano, S. ; Palacio, J. ; Palatiello, M. ; Paneque, D. ; Paoletti, R. ; Paredes, J. M. ; Paredes- Fortuny, X. ; Pedaletti, G. ; Peresano, M. ; Perri, L. ; Peršić, M. ; Poutanen, J. ; Prada Moroni, P.G. ; Prandini, E. ; Puljak, Ivica ; Garcia, J.R. ; Reichardt, I. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Saito, T. ; Satalecka, K. ; Schroeder, S. ; Schweizer, T. ; Shore, S. N. ; Sillanpää, A. ; Sitarek, J. ; Šnidarić, Iva ; Sobczynska, D. ; Stamerra, A. ; Strzys, M. ; Surić, Tihomir ; Takalo, L. ; Tavecchio, F. ; Temnikov, P. ; Terzić, Tomislav ; Tescaro, D. ; Teshima, M. ; Torres, D.F. ; Torres-Albà, N. ; Toyama, T. ; Treves, A. ; Vanzo, G. ; Vazquez Acosta, M. ; Vovk, I. ; Ward, J.E. ; Will, M. ; Wu, M.H. ; Krauß, F. ; Schulz, R. ; Kadler, M. ; Wilms, J. ; Ros, E. ; Bach, U. ; Beuchert, T. ; Langejahn, M. ; Wendel, C. ; Gehrels, N. ; Baumgartner, W.H. ; Markwardt, C. B. ; Müller, C. ; Grinberg, V. ; Hovatta, T. ; Magill, J.
MAGIC Collaboration
engleski
First multi-wavelength campaign on the gamma-ray- loud active galaxy IC 310
The extragalactic VHE gamma-ray sky is rich in blazars. These are jetted active galactic nuclei viewed at a small angle to the line-of- sight. Only a handful of objects viewed at a larger angle are known so far 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. We 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 deg - 20 deg. The multi-instrument campaign was conducted between 2012 Nov. and 2013 Jan., 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 broad-band spectral energy distribution. 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, 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 behaviour. No strong correlated flux variability was found in other frequency regimes. The broad-band spectral energy distribution obtained from these observations supports the hypothesis of a double-hump structure. The harder-when-brighter trend in the X-ray and VHE emission is consistent with the behaviour expected from a synchrotron self-Compton scenario. The contemporaneous broad-band 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.
gamma rays: galaxies ; galaxies: active ; individual (IC 310)
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Podaci o izdanju
603
2017.
A25-1-A25-15
objavljeno
0004-6361
1432-0746
10.1051/0004-6361/201630347
