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

Research output: Contribution to journalArticleScientificpeer-review

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First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310. / Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A.; Arcaro, C.; Babić, A.; 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.; Oña-Wilhelmi, E.; Di Pierro, F.; Doert, M.; Domínguez, A.; Dominis Prester, D.; 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, 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.; 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.; Persic, M.; Poutanen, J.; Prada Moroni, P.G.; Prandini, E.; Puljak, I.; Rodriguez Garcia, J.; Reichardt, I.; Rhode, W.; Ribó, M.; Rico, J.; Saito, T.; Satalecka, K.; Schroeder, S.; Schweizer, T.; Shore, S. N.; Sillanpää, A.; Sitarek, J.; Snidaric, I.; Sobczynska, D.; Stamerra, A.; Strzys, M.; Surić, T.; Takalo, L.; Tavecchio, F.; Temnikov, P.; Terzić, T.; Tescaro, D.; Teshima, M.; Torres, D. F.; Torres-Albà, N.; Toyama, T.; Treves, A.; Vanzo, G.; Vazquez Acosta, M.; Vovk, I.; Ward, Eric J; Will, M.; Wu, M. H.; Krauß, Felicia; 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.

In: Astronomy and Astrophysics, Vol. 603, A25, 01.07.2017.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Ahnen, ML, Ansoldi, S, Antonelli, LA, Arcaro, C, Babić, A, Banerjee, B, Bangale, P, Barres de Almeida, U, Barrio, JA, 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, JL, Cortina, J, Covino, S, Cumani, P, Da Vela, P, Dazzi, F, De Angelis, A, De Lotto, B, Oña-Wilhelmi, E, Di Pierro, F, Doert, M, Domínguez, A, Dominis Prester, D, Dorner, D, Doro, M, Einecke, S, Eisenacher Glawion, D, Elsaesser, D, Engelkemeier, M, Fallah Ramazani, V, Fernández-Barral, A, Fidalgo, D, Fonseca, MV, Font, L, Fruck, C, Galindo, D, García López, RJ, Garczarczyk, M, Gaug, M, Giammaria, P, Godinović, 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, 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, JM, Paredes-Fortuny, X, Pedaletti, G, Peresano, M, Perri, L, Persic, M, Poutanen, J, Prada Moroni, PG, Prandini, E, Puljak, I, Rodriguez Garcia, J, Reichardt, I, Rhode, W, Ribó, M, Rico, J, Saito, T, Satalecka, K, Schroeder, S, Schweizer, T, Shore, SN, Sillanpää, A, Sitarek, J, Snidaric, I, Sobczynska, D, Stamerra, A, Strzys, M, Surić, T, Takalo, L, Tavecchio, F, Temnikov, P, Terzić, T, Tescaro, D, Teshima, M, Torres, DF, Torres-Albà, N, Toyama, T, Treves, A, Vanzo, G, Vazquez Acosta, M, Vovk, I, Ward, EJ, 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, Müller, C, Grinberg, V, Hovatta, T & Magill, J 2017, 'First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310' Astronomy and Astrophysics, vol. 603, A25. https://doi.org/10.1051/0004-6361/201630347

APA

Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Arcaro, C., Babić, A., Banerjee, B., ... Magill, J. (2017). First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310. Astronomy and Astrophysics, 603, [A25]. https://doi.org/10.1051/0004-6361/201630347

Vancouver

Ahnen ML, Ansoldi S, Antonelli LA, Arcaro C, Babić A, Banerjee B et al. First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310. Astronomy and Astrophysics. 2017 Jul 1;603. A25. https://doi.org/10.1051/0004-6361/201630347

Author

Ahnen, M. L. ; Ansoldi, S. ; Antonelli, L. A. ; Arcaro, C. ; Babić, A. ; 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. ; Oña-Wilhelmi, E. ; Di Pierro, F. ; Doert, M. ; Domínguez, A. ; Dominis Prester, D. ; 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, 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. ; 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. ; Persic, M. ; Poutanen, J. ; Prada Moroni, P.G. ; Prandini, E. ; Puljak, I. ; Rodriguez Garcia, J. ; Reichardt, I. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Saito, T. ; Satalecka, K. ; Schroeder, S. ; Schweizer, T. ; Shore, S. N. ; Sillanpää, A. ; Sitarek, J. ; Snidaric, I. ; Sobczynska, D. ; Stamerra, A. ; Strzys, M. ; Surić, T. ; Takalo, L. ; Tavecchio, F. ; Temnikov, P. ; Terzić, T. ; Tescaro, D. ; Teshima, M. ; Torres, D. F. ; Torres-Albà, N. ; Toyama, T. ; Treves, A. ; Vanzo, G. ; Vazquez Acosta, M. ; Vovk, I. ; Ward, Eric J ; Will, M. ; Wu, M. H. ; Krauß, Felicia ; 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. / First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310. In: Astronomy and Astrophysics. 2017 ; Vol. 603.

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@article{a82738c3f124402e82053fc4b1f462cf,
title = "First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310",
abstract = "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°-20°. 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.",
keywords = "Galaxies: active, Galaxies: individual: IC 310, Gamma rays: galaxies",
author = "Ahnen, {M. L.} and S. Ansoldi and Antonelli, {L. A.} and C. Arcaro and A. Babić and B. Banerjee and P. Bangale and {Barres de Almeida}, U. and Barrio, {J. A.} and {Becerra Gonz{\'a}lez}, J. and W. Bednarek and E. Bernardini and A. Berti and B. Biasuzzi and A. Biland and O. Blanch and S. Bonnefoy and G. Bonnoli and F. Borracci and T. Bretz and R. Carosi and A. Carosi and A. Chatterjee and P. Colin and E. Colombo and Contreras, {J. L.} and J. Cortina and S. Covino and P. Cumani and {Da Vela}, P. and F. Dazzi and {De Angelis}, A. and {De Lotto}, B. and E. O{\~n}a-Wilhelmi and {Di Pierro}, F. and M. Doert and A. Dom{\'i}nguez and {Dominis Prester}, D. and D. Dorner and M. Doro and S. Einecke and {Eisenacher Glawion}, D. and D. Elsaesser and M. Engelkemeier and {Fallah Ramazani}, V. and A. Fern{\'a}ndez-Barral and D. Fidalgo and Fonseca, {M. V.} and L. Font and C. Fruck and D. Galindo and {Garc{\'i}a L{\'o}pez}, R.J. and M. Garczarczyk and M. Gaug and P. Giammaria and N. Godinović and D. Gora and D. Guberman and D. Hadasch and A. Hahn and T. Hassan and M. Hayashida and J. Herrera and J. Hose and D. Hrupec and G. Hughes and W. Idec and K. Ishio and K. Kodani and Y. Konno and H. Kubo and J. Kushida and D. Lelas and E. Lindfors and S. Lombardi and F. Longo and M. L{\'o}pez and P. Majumdar and M. Makariev and K. Mallot and G. Maneva and M. Manganaro and K. Mannheim and L. Maraschi and M. Mariotti and M. Mart{\'i}nez and D. Mazin and U. Menzel and R. Mirzoyan and A. Moralejo and E. Moretti and D. Nakajima and V. Neustroev and A. Niedzwiecki and {Nievas Rosillo}, M. and K. Nilsson and K. Nishijima and K. Noda and L. Nogu{\'e}s and M. N{\"o}the and S. Paiano and J. Palacio and M. Palatiello and D. Paneque and R. Paoletti and Paredes, {J. M.} and X. Paredes-Fortuny and G. Pedaletti and M. Peresano and L. Perri and M. Persic and J. Poutanen and {Prada Moroni}, P.G. and E. Prandini and I. Puljak and {Rodriguez Garcia}, J. and I. Reichardt and W. Rhode and M. Rib{\'o} and J. Rico and T. Saito and K. Satalecka and S. Schroeder and T. Schweizer and Shore, {S. N.} and A. Sillanp{\"a}{\"a} and J. Sitarek and I. Snidaric and D. Sobczynska and A. Stamerra and M. Strzys and T. Surić and L. Takalo and F. Tavecchio and P. Temnikov and T. Terzić and D. Tescaro and M. Teshima and Torres, {D. F.} and N. Torres-Alb{\`a} and T. Toyama and A. Treves and G. Vanzo and {Vazquez Acosta}, M. and I. Vovk and Ward, {Eric J} and M. Will and Wu, {M. H.} and Felicia Krau{\ss} and R. Schulz and M. Kadler and J. Wilms and E. Ros and U. Bach and T. Beuchert and M. Langejahn and C. Wendel and N. Gehrels and Baumgartner, {W. H.} and C.B. Markwardt and C. M{\"u}ller and V. Grinberg and T. Hovatta and J. Magill",
year = "2017",
month = "7",
day = "1",
doi = "10.1051/0004-6361/201630347",
language = "English",
volume = "603",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",

}

RIS - Download

TY - JOUR

T1 - First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310

AU - Ahnen, M. L.

AU - Ansoldi, S.

AU - Antonelli, L. A.

AU - Arcaro, C.

AU - Babić, A.

AU - Banerjee, B.

AU - Bangale, P.

AU - Barres de Almeida, U.

AU - Barrio, J. A.

AU - Becerra González, J.

AU - Bednarek, W.

AU - Bernardini, E.

AU - Berti, A.

AU - Biasuzzi, B.

AU - Biland, A.

AU - Blanch, O.

AU - Bonnefoy, S.

AU - Bonnoli, G.

AU - Borracci, F.

AU - Bretz, T.

AU - Carosi, R.

AU - Carosi, A.

AU - Chatterjee, A.

AU - Colin, P.

AU - Colombo, E.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Covino, S.

AU - Cumani, P.

AU - Da Vela, P.

AU - Dazzi, F.

AU - De Angelis, A.

AU - De Lotto, B.

AU - Oña-Wilhelmi, E.

AU - Di Pierro, F.

AU - Doert, M.

AU - Domínguez, A.

AU - Dominis Prester, D.

AU - Dorner, D.

AU - Doro, M.

AU - Einecke, S.

AU - Eisenacher Glawion, D.

AU - Elsaesser, D.

AU - Engelkemeier, M.

AU - Fallah Ramazani, V.

AU - Fernández-Barral, A.

AU - Fidalgo, D.

AU - Fonseca, M. V.

AU - Font, L.

AU - Fruck, C.

AU - Galindo, D.

AU - García López, R.J.

AU - Garczarczyk, M.

AU - Gaug, M.

AU - Giammaria, P.

AU - Godinović, N.

AU - Gora, D.

AU - Guberman, D.

AU - Hadasch, D.

AU - Hahn, A.

AU - Hassan, T.

AU - Hayashida, M.

AU - Herrera, J.

AU - Hose, J.

AU - Hrupec, D.

AU - Hughes, G.

AU - Idec, W.

AU - Ishio, K.

AU - Kodani, K.

AU - Konno, Y.

AU - Kubo, H.

AU - Kushida, J.

AU - Lelas, D.

AU - Lindfors, E.

AU - Lombardi, S.

AU - Longo, F.

AU - López, M.

AU - Majumdar, P.

AU - Makariev, M.

AU - Mallot, K.

AU - Maneva, G.

AU - Manganaro, M.

AU - Mannheim, K.

AU - Maraschi, L.

AU - Mariotti, M.

AU - Martínez, M.

AU - Mazin, D.

AU - Menzel, U.

AU - Mirzoyan, R.

AU - Moralejo, A.

AU - Moretti, E.

AU - Nakajima, D.

AU - Neustroev, V.

AU - Niedzwiecki, A.

AU - Nievas Rosillo, M.

AU - Nilsson, K.

AU - Nishijima, K.

AU - Noda, K.

AU - Nogués, L.

AU - Nöthe, M.

AU - Paiano, S.

AU - Palacio, J.

AU - Palatiello, M.

AU - Paneque, D.

AU - Paoletti, R.

AU - Paredes, J. M.

AU - Paredes-Fortuny, X.

AU - Pedaletti, G.

AU - Peresano, M.

AU - Perri, L.

AU - Persic, M.

AU - Poutanen, J.

AU - Prada Moroni, P.G.

AU - Prandini, E.

AU - Puljak, I.

AU - Rodriguez Garcia, J.

AU - Reichardt, I.

AU - Rhode, W.

AU - Ribó, M.

AU - Rico, J.

AU - Saito, T.

AU - Satalecka, K.

AU - Schroeder, S.

AU - Schweizer, T.

AU - Shore, S. N.

AU - Sillanpää, A.

AU - Sitarek, J.

AU - Snidaric, I.

AU - Sobczynska, D.

AU - Stamerra, A.

AU - Strzys, M.

AU - Surić, T.

AU - Takalo, L.

AU - Tavecchio, F.

AU - Temnikov, P.

AU - Terzić, T.

AU - Tescaro, D.

AU - Teshima, M.

AU - Torres, D. F.

AU - Torres-Albà, N.

AU - Toyama, T.

AU - Treves, A.

AU - Vanzo, G.

AU - Vazquez Acosta, M.

AU - Vovk, I.

AU - Ward, Eric J

AU - Will, M.

AU - Wu, M. H.

AU - Krauß, Felicia

AU - Schulz, R.

AU - Kadler, M.

AU - Wilms, J.

AU - Ros, E.

AU - Bach, U.

AU - Beuchert, T.

AU - Langejahn, M.

AU - Wendel, C.

AU - Gehrels, N.

AU - Baumgartner, W. H.

AU - Markwardt, C.B.

AU - Müller, C.

AU - Grinberg, V.

AU - Hovatta, T.

AU - Magill, J.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - 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°-20°. 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.

AB - 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°-20°. 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.

KW - Galaxies: active

KW - Galaxies: individual: IC 310

KW - Gamma rays: galaxies

UR - http://www.scopus.com/inward/record.url?scp=85021761829&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201630347

DO - 10.1051/0004-6361/201630347

M3 - Article

VL - 603

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - A25

ER -

ID: 14523299