DETECTION OF VERY HIGH ENERGY gamma-RAY EMISSION FROM THE PERSEUS CLUSTER HEAD-TAIL GALAXY IC 310 BY THE MAGIC TELESCOPES

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MARC

Aleksic, J. (author)

DETECTION OF VERY HIGH ENERGY gamma-RAY EMISSION FROM THE PERSEUS CLUSTER HEAD-TAIL GALAXY IC 310 BY THE MAGIC TELESCOPES

Article/chapterEnglish2010

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2010
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LIBRIS-ID:oai:DiVA.org:su-51479
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-51479URI
https://doi.org/10.1088/2041-8205/723/2/L207DOI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

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authorCount :153
We report on the detection with the MAGIC telescopes of very high energy (VHE) gamma-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 7.6 sigma 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) x 10(-12) cm(-2) s(-1), corresponds to (2.5 +/- 0.4)% of Crab Nebula units. Only an upper limit, of 1.9% of Crab Nebula units above 300 GeV, was obtained with the 2008 data. This, together with strong hints (>3 sigma) of flares in the middle of 2009 October and November, implies that the emission is variable. The MAGIC 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 over more than three orders of magnitude in energy.

Subject headings and genre

galaxies: active
galaxies: individual (IC 310)
gamma rays: galaxies

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Antonelli, L. A. (author)
Antoranz, P. (author)
Backes, M. (author)
Barrio, J. A. (author)
Bastieri, D. (author)
Becerra Gonzalez, J. (author)
Bednarek, W. (author)
Berdyugin, A. (author)
Berger, K. (author)
Bernardini, E. (author)
Biland, A. (author)
Blanch, O. (author)
Bock, R. K. (author)
Boller, A. (author)
Bonnoli, G. (author)
Bordas, P. (author)
Tridon, D. Borla (author)
Bosch-Ramon, V. (author)
Bose, D. (author)
Braun, I. (author)
Bretz, T. (author)
Camara, M. (author)
Canellas, A. (author)
Carmona, E. (author)
Carosi, A. (author)
Colin, P. (author)
Colombo, E. (author)
Contreras, J. L. (author)
Cortina, J. (author)
Cossio, L. (author)
Covino, S. (author)
Dazzi, F. (author)
De Angelis, A. (author)
De Cea del Pozo, E. (author)
De Lotto, B. (author)
De Maria, M. (author)
De Sabata, F. (author)
Delgado Mendez, C. (author)
Diago Ortega, A. (author)
Doert, M. (author)
Dominguez, A. (author)
Prester, D. Dominis (author)
Dorner, D. (author)
Doro, M. (author)
Elsaesser, D. (author)
Errando, M. (author)
Ferenc, D. (author)
Fonseca, M. V. (author)
Font, L. (author)
Garcia Lopez, R. J. (author)
Garczarczyk, M. (author)
Giavitto, G. (author)
Godinovic, N. (author)
Hadasch, D. (author)
Herrero, A. (author)
Hildebrand, D. (author)
Hoehne-Moench, D. (author)
Hose, J. (author)
Hrupec, D. (author)
Jogler, T. (author)
Klepser, S. (author)
Kraehenbuehl, T. (author)
Kranich, D. (author)
Krause, J. (author)
La Barbera, A. (author)
Leonardo, E. (author)
Lindfors, E. (author)
Lombardi, S. (author)
Longo, F. (author)
Lopez, M. (author)
Lorenz, E. (author)
Majumdar, P. (author)
Makariev, M. (author)
Maneva, G. (author)
Mankuzhiyil, N. (author)
Mannheim, K. (author)
Maraschi, L. (author)
Mariotti, M. (author)
Martinez, M. (author)
Mazin, D. (author)
Meucci, M. (author)
Miranda, J. M. (author)
Mirzoyan, R. (author)
Miyamoto, H. (author)
Moldon, J. (author)
Moralejo, A. (author)
Nieto, D. (author)
Nilsson, K. (author)
Orito, R. (author)
Oya, I. (author)
Paoletti, R. (author)
Paredes, J. M. (author)
Partini, S. (author)
Pasanen, M. (author)
Pauss, F. (author)
Pegna, R. G. (author)
Perez-Torres, M. A. (author)
Persic, M. (author)
Peruzzo, L. (author)
Pochon, J. (author)
Prada, F. (author)
Moroni, P. G. Prada (author)
Prandini, E. (author)
Puchades, N. (author)
Puljak, I. (author)
Reichardt, I. (author)
Reinthal, R. (author)
Rhode, W. (author)
Ribo, M. (author)
Rico, J. (author)
Ruegamer, S. (author)
Saggion, A. (author)
Saito, K. (author)
Saito, T. Y. (author)
Salvati, M. (author)
Sanchez-Conde, M. (author)
Satalecka, K. (author)
Scalzotto, V. (author)
Scapin, V. (author)
Schultz, C. (author)
Schweizer, T. (author)
Shayduk, M. (author)
Shore, S. N. (author)
Sierpowska-Bartosik, A. (author)
Sillanpaa, A. (author)
Sitarek, J. (author)
Sobczynska, D. (author)
Spanier, F. (author)
Spiro, S. (author)
Stamerra, A. (author)
Steinke, B. (author)
Storz, J. (author)
Strah, N. (author)
Struebig, J. C. (author)
Suric, T. (author)
Takalo, L. (author)
Tavecchio, F. (author)
Temnikov, P. (author)
Terzic, T. (author)
Tescaro, D. (author)
Teshima, M. (author)
Torres, D. F. (author)
Vankov, H. (author)
Wagner, R. M. (author)
Weitzel, Q. (author)
Zabalza, V. (author)
Zandanel, F. (author)
Zanin, R. (author)
Neronov, A. (author)
Pfrommer, C. (author)
Pinzke, AndersStockholms universitet,Fysikum(Swepub:su)apinzke (author)
Semikoz, D. V. (author)
Stockholms universitetFysikum (creator_code:org_t)

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In:The Astrophysical Journal Letters723:2, s. l207-L2122041-8205

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By the author/editor: Aleksic, J.; Antonelli, L. A.; Antoranz, P.; Backes, M.; Barrio, J. A.; Bastieri, D.; show more...; Becerra Gonzalez ...; Bednarek, W.; Berdyugin, A.; Berger, K.; Bernardini, E.; Biland, A.; Blanch, O.; Bock, R. K.; Boller, A.; Bonnoli, G.; Bordas, P.; Tridon, D. Borla; Bosch-Ramon, V.; Bose, D.; Braun, I.; Bretz, T.; Camara, M.; Canellas, A.; Carmona, E.; Carosi, A.; Colin, P.; Colombo, E.; Contreras, J. L.; Cortina, J.; Cossio, L.; Covino, S.; Dazzi, F.; De Angelis, A.; De Cea del Pozo, ...; De Lotto, B.; De Maria, M.; De Sabata, F.; Delgado Mendez, ...; Diago Ortega, A.; Doert, M.; Dominguez, A.; Prester, D. Domi ...; Dorner, D.; Doro, M.; Elsaesser, D.; Errando, M.; Ferenc, D.; Fonseca, M. V.; Font, L.; Garcia Lopez, R. ...; Garczarczyk, M.; Giavitto, G.; Godinovic, N.; Hadasch, D.; Herrero, A.; Hildebrand, D.; Hoehne-Moench, D ...; Hose, J.; Hrupec, D.; Jogler, T.; Klepser, S.; Kraehenbuehl, T.; Kranich, D.; Krause, J.; La Barbera, A.; Leonardo, E.; Lindfors, E.; Lombardi, S.; Longo, F.; Lopez, M.; Lorenz, E.; Majumdar, P.; Makariev, M.; Maneva, G.; Mankuzhiyil, N.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martinez, M.; Mazin, D.; Meucci, M.; Miranda, J. M.; Mirzoyan, R.; Miyamoto, H.; Moldon, J.; Moralejo, A.; Nieto, D.; Nilsson, K.; Orito, R.; Oya, I.; Paoletti, R.; Paredes, J. M.; Partini, S.; Pasanen, M.; Pauss, F.; Pegna, R. G.; Perez-Torres, M. ...; Persic, M.; Peruzzo, L.; Pochon, J.; Prada, F.; Moroni, P. G. Pr ...; Prandini, E.; Puchades, N.; Puljak, I.; Reichardt, I.; Reinthal, R.; Rhode, W.; Ribo, M.; Rico, J.; Ruegamer, S.; Saggion, A.; Saito, K.; Saito, T. Y.; Salvati, M.; Sanchez-Conde, M ...; Satalecka, K.; Scalzotto, V.; Scapin, V.; Schultz, C.; Schweizer, T.; Shayduk, M.; Shore, S. N.; Sierpowska-Barto ...; Sillanpaa, A.; Sitarek, J.; Sobczynska, D.; Spanier, F.; Spiro, S.; Stamerra, A.; Steinke, B.; Storz, J.; Strah, N.; Struebig, J. C.; Suric, T.; Takalo, L.; Tavecchio, F.; Temnikov, P.; Terzic, T.; Tescaro, D.; Teshima, M.; Torres, D. F.; Vankov, H.; Wagner, R. M.; Weitzel, Q.; Zabalza, V.; Zandanel, F.; Zanin, R.; Neronov, A.; Pfrommer, C.; Pinzke, Anders; Semikoz, D. V.; show less...

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