Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes

J. Aleksić; L. A. Antonelli; P. Antoranz; M. Backes; J. A. Barrio; D. Bastieri; J. Becerra González; W. Bednarek; A. Berdyugin; K. Berger; E. Bernardini; A. Biland; O. Blanch; R. K. Bock; A. Boller; G. Bonnoli; P. Bordas; D. Borla Tridon; V. Bosch-Ramon; D. Bose; I. Braun; T. Bretz; M. Camara; A. Cañellas; E. Carmona; A. Carosi; P. Colin; E. Colombo; J. L. Contreras; J. Cortina; L. Cossio; S. Covino; F. Dazzi; A. De Angelis; E. De Cea Del Pozo; B. De Lotto; M. De Maria; F. De Sabata; C. Delgado Mendez; A. Diago Ortega; M. Doert; A. Domínguez; D. Dominis Prester; D. Dorner; M. Doro; D. Elsaesser; M. Errando; D. Ferenc; M. V. Fonseca; L. Font; R. J. García López; M. Garczarczyk; G. Giavitto; N. Godinović; D. Hadasch; A. Herrero; D. Hildebrand; D. Höhne-Mönch; J. Hose; D. Hrupec; T. Jogler; S. Klepser; T. Krähenb Ühl; D. Kranich; J. Krause; A. La Barbera; E. Leonardo; E. Lindfors; S. Lombardi; F. Longo; M. López; E. Lorenz; P. Majumdar; M. Makariev; G. Maneva; N. Mankuzhiyil; K. Mannheim; L. Maraschi; M. Mariotti; M. Martínez; D. Mazin; M. Meucci; J. M. Miranda; R. Mirzoyan; H. Miyamoto; J. Moldón; A. Moralejo; D. Nieto; K. Nilsson; R. Orito; I. Oya; R. Paoletti; J. M. Paredes; S. Partini; M. Pasanen; F. Pauss; R. G. Pegna; M. A. Perez-Torres; M. Persic; L. Peruzzo

doi:10.1088/2041-8205/723/2/L207

Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes

J. Aleksić, L. A. Antonelli, P. Antoranz, M. Backes, J. A. Barrio, D. Bastieri, J. Becerra González, W. Bednarek, A. Berdyugin, K. Berger, E. Bernardini, A. Biland, O. Blanch, R. K. Bock, A. Boller, G. Bonnoli, P. Bordas, D. Borla Tridon, V. Bosch-Ramon, D. BoseI. Braun, T. Bretz, M. Camara, A. Cañellas, E. Carmona, A. Carosi, P. Colin, E. Colombo, J. L. Contreras, J. Cortina, L. Cossio, S. Covino, F. Dazzi, A. De Angelis, E. De Cea Del Pozo, B. De Lotto, M. De Maria, F. De Sabata, C. Delgado Mendez, A. Diago Ortega, M. Doert, A. Domínguez, D. Dominis Prester, D. Dorner, M. Doro, D. Elsaesser, M. Errando, D. Ferenc, M. V. Fonseca, L. Font, R. J. García López, M. Garczarczyk, G. Giavitto, N. Godinović, D. Hadasch, A. Herrero, D. Hildebrand, D. Höhne-Mönch, J. Hose, D. Hrupec, T. Jogler, S. Klepser, T. Krähenb Ühl, D. Kranich, J. Krause, A. La Barbera, E. Leonardo, E. Lindfors, S. Lombardi, F. Longo, M. López, E. Lorenz, P. Majumdar, M. Makariev, G. Maneva, N. Mankuzhiyil, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, D. Mazin, M. Meucci, J. M. Miranda, R. Mirzoyan, H. Miyamoto, J. Moldón, A. Moralejo, D. Nieto, K. Nilsson, R. Orito, I. Oya, R. Paoletti, J. M. Paredes, S. Partini, M. Pasanen, F. Pauss, R. G. Pegna, M. A. Perez-Torres, M. Persic, L. Peruzzo

Research output: Contribution to journal › Article › Research › peer-review

87 Citations (Scopus)

Abstract

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.

Original language	English
Journal	Astrophysical Journal Letters
Volume	723
Issue number	2 PART 2
DOIs	https://doi.org/10.1088/2041-8205/723/2/L207
Publication status	Published - 10 Nov 2010

Keywords

Galaxies: active
Galaxies: individual (IC 310)
Gamma rays: galaxies

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Aleksić, J., Antonelli, L. A., Antoranz, P., Backes, M., Barrio, J. A., Bastieri, D., Becerra González, J., Bednarek, W., Berdyugin, A., Berger, K., Bernardini, E., Biland, A., Blanch, O., Bock, R. K., Boller, A., Bonnoli, G., Bordas, P., Borla Tridon, D., Bosch-Ramon, V., ... Peruzzo, L. (2010). Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes. Astrophysical Journal Letters, 723(2 PART 2). https://doi.org/10.1088/2041-8205/723/2/L207

Aleksić, J. ; Antonelli, L. A. ; Antoranz, P. ; Backes, M. ; Barrio, J. A. ; Bastieri, D. ; Becerra González, J. ; Bednarek, W. ; Berdyugin, A. ; Berger, K. ; Bernardini, E. ; Biland, A. ; Blanch, O. ; Bock, R. K. ; Boller, A. ; Bonnoli, G. ; Bordas, P. ; Borla Tridon, D. ; Bosch-Ramon, V. ; Bose, D. ; Braun, I. ; Bretz, T. ; Camara, M. ; Cañellas, 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, E. ; De Lotto, B. ; De Maria, M. ; De Sabata, F. ; Delgado Mendez, C. ; Diago Ortega, A. ; Doert, M. ; Domínguez, A. ; Dominis Prester, D. ; Dorner, D. ; Doro, M. ; Elsaesser, D. ; Errando, M. ; Ferenc, D. ; Fonseca, M. V. ; Font, L. ; García López, R. J. ; Garczarczyk, M. ; Giavitto, G. ; Godinović, N. ; Hadasch, D. ; Herrero, A. ; Hildebrand, D. ; Höhne-Mönch, D. ; Hose, J. ; Hrupec, D. ; Jogler, T. ; Klepser, S. ; Krähenb Ühl, T. ; Kranich, D. ; Krause, J. ; La Barbera, A. ; Leonardo, E. ; Lindfors, E. ; Lombardi, S. ; Longo, F. ; López, M. ; Lorenz, E. ; Majumdar, P. ; Makariev, M. ; Maneva, G. ; Mankuzhiyil, N. ; Mannheim, K. ; Maraschi, L. ; Mariotti, M. ; Martínez, M. ; Mazin, D. ; Meucci, M. ; Miranda, J. M. ; Mirzoyan, R. ; Miyamoto, H. ; Moldón, 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. A. ; Persic, M. ; Peruzzo, L. / Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes. In: Astrophysical Journal Letters. 2010 ; Vol. 723, No. 2 PART 2.

@article{a0f2f5c4b75c43e6be1177270da09cbb,

title = "Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes",

abstract = "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. {\textcopyright} 2010. The American Astronomical Society. All rights reserved.",

keywords = "Galaxies: active, Galaxies: individual (IC 310), Gamma rays: galaxies",

author = "J. Aleksi{\'c} and Antonelli, {L. A.} and P. Antoranz and M. Backes and Barrio, {J. A.} and D. Bastieri and {Becerra Gonz{\'a}lez}, J. and W. Bednarek and A. Berdyugin and K. Berger and E. Bernardini and A. Biland and O. Blanch and Bock, {R. K.} and A. Boller and G. Bonnoli and P. Bordas and {Borla Tridon}, D. and V. Bosch-Ramon and D. Bose and I. Braun and T. Bretz and M. Camara and A. Ca{\~n}ellas and E. Carmona and A. Carosi and P. Colin and E. Colombo and Contreras, {J. L.} and J. Cortina and L. Cossio and S. Covino and F. Dazzi and {De Angelis}, A. and {De Cea Del Pozo}, E. and {De Lotto}, B. and {De Maria}, M. and {De Sabata}, F. and {Delgado Mendez}, C. and {Diago Ortega}, A. and M. Doert and A. Dom{\'i}nguez and {Dominis Prester}, D. and D. Dorner and M. Doro and D. Elsaesser and M. Errando and D. Ferenc and Fonseca, {M. V.} and L. Font and {Garc{\'i}a L{\'o}pez}, {R. J.} and M. Garczarczyk and G. Giavitto and N. Godinovi{\'c} and D. Hadasch and A. Herrero and D. Hildebrand and D. H{\"o}hne-M{\"o}nch and J. Hose and D. Hrupec and T. Jogler and S. Klepser and {Kr{\"a}henb {\"U}hl}, T. and D. Kranich and J. Krause and {La Barbera}, A. and E. Leonardo and E. Lindfors and S. Lombardi and F. Longo and M. L{\'o}pez and E. Lorenz and P. Majumdar and M. Makariev and G. Maneva and N. Mankuzhiyil and K. Mannheim and L. Maraschi and M. Mariotti and M. Mart{\'i}nez and D. Mazin and M. Meucci and Miranda, {J. M.} and R. Mirzoyan and H. Miyamoto and J. Mold{\'o}n and A. Moralejo and D. Nieto and K. Nilsson and R. Orito and I. Oya and R. Paoletti and Paredes, {J. M.} and S. Partini and M. Pasanen and F. Pauss and Pegna, {R. G.} and Perez-Torres, {M. A.} and M. Persic and L. Peruzzo",

year = "2010",

month = nov,

day = "10",

doi = "10.1088/2041-8205/723/2/L207",

language = "English",

volume = "723",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

number = "2 PART 2",

}

Aleksić, J, Antonelli, LA, Antoranz, P, Backes, M, Barrio, JA, Bastieri, D, Becerra González, J, Bednarek, W, Berdyugin, A, Berger, K, Bernardini, E, Biland, A, Blanch, O, Bock, RK, Boller, A, Bonnoli, G, Bordas, P, Borla Tridon, D, Bosch-Ramon, V, Bose, D, Braun, I, Bretz, T, Camara, M, Cañellas, A, Carmona, E, Carosi, A, Colin, P, Colombo, E, Contreras, JL, Cortina, J, Cossio, L, Covino, S, Dazzi, F, De Angelis, A, De Cea Del Pozo, E, De Lotto, B, De Maria, M, De Sabata, F, Delgado Mendez, C, Diago Ortega, A, Doert, M, Domínguez, A, Dominis Prester, D, Dorner, D, Doro, M, Elsaesser, D, Errando, M, Ferenc, D, Fonseca, MV, Font, L, García López, RJ, Garczarczyk, M, Giavitto, G, Godinović, N, Hadasch, D, Herrero, A, Hildebrand, D, Höhne-Mönch, D, Hose, J, Hrupec, D, Jogler, T, Klepser, S, Krähenb Ühl, T, Kranich, D, Krause, J, La Barbera, A, Leonardo, E, Lindfors, E, Lombardi, S, Longo, F, López, M, Lorenz, E, Majumdar, P, Makariev, M, Maneva, G, Mankuzhiyil, N, Mannheim, K, Maraschi, L, Mariotti, M, Martínez, M, Mazin, D, Meucci, M, Miranda, JM, Mirzoyan, R, Miyamoto, H, Moldón, J, Moralejo, A, Nieto, D, Nilsson, K, Orito, R, Oya, I, Paoletti, R, Paredes, JM, Partini, S, Pasanen, M, Pauss, F, Pegna, RG, Perez-Torres, MA, Persic, M & Peruzzo, L 2010, 'Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes', Astrophysical Journal Letters, vol. 723, no. 2 PART 2. https://doi.org/10.1088/2041-8205/723/2/L207

Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes. / Aleksić, J.; Antonelli, L. A.; Antoranz, P.; Backes, M.; Barrio, J. A.; Bastieri, D.; Becerra González, J.; Bednarek, W.; Berdyugin, A.; Berger, K.; Bernardini, E.; Biland, A.; Blanch, O.; Bock, R. K.; Boller, A.; Bonnoli, G.; Bordas, P.; Borla Tridon, D.; Bosch-Ramon, V.; Bose, D.; Braun, I.; Bretz, T.; Camara, M.; Cañellas, 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, E.; De Lotto, B.; De Maria, M.; De Sabata, F.; Delgado Mendez, C.; Diago Ortega, A.; Doert, M.; Domínguez, A.; Dominis Prester, D.; Dorner, D.; Doro, M.; Elsaesser, D.; Errando, M.; Ferenc, D.; Fonseca, M. V.; Font, L.; García López, R. J.; Garczarczyk, M.; Giavitto, G.; Godinović, N.; Hadasch, D.; Herrero, A.; Hildebrand, D.; Höhne-Mönch, D.; Hose, J.; Hrupec, D.; Jogler, T.; Klepser, S.; Krähenb Ühl, T.; Kranich, D.; Krause, J.; La Barbera, A.; Leonardo, E.; Lindfors, E.; Lombardi, S.; Longo, F.; López, M.; Lorenz, E.; Majumdar, P.; Makariev, M.; Maneva, G.; Mankuzhiyil, N.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martínez, M.; Mazin, D.; Meucci, M.; Miranda, J. M.; Mirzoyan, R.; Miyamoto, H.; Moldón, 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. A.; Persic, M.; Peruzzo, L.

In: Astrophysical Journal Letters, Vol. 723, No. 2 PART 2, 10.11.2010.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Detection of very high energy γ -ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes

AU - Aleksić, J.

AU - Antonelli, L. A.

AU - Antoranz, P.

AU - Backes, M.

AU - Barrio, J. A.

AU - Bastieri, D.

AU - Becerra González, J.

AU - Bednarek, W.

AU - Berdyugin, A.

AU - Berger, K.

AU - Bernardini, E.

AU - Biland, A.

AU - Blanch, O.

AU - Bock, R. K.

AU - Boller, A.

AU - Bonnoli, G.

AU - Bordas, P.

AU - Borla Tridon, D.

AU - Bosch-Ramon, V.

AU - Bose, D.

AU - Braun, I.

AU - Bretz, T.

AU - Camara, M.

AU - Cañellas, A.

AU - Carmona, E.

AU - Carosi, A.

AU - Colin, P.

AU - Colombo, E.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Cossio, L.

AU - Covino, S.

AU - Dazzi, F.

AU - De Angelis, A.

AU - De Cea Del Pozo, E.

AU - De Lotto, B.

AU - De Maria, M.

AU - De Sabata, F.

AU - Delgado Mendez, C.

AU - Diago Ortega, A.

AU - Doert, M.

AU - Domínguez, A.

AU - Dominis Prester, D.

AU - Dorner, D.

AU - Doro, M.

AU - Elsaesser, D.

AU - Errando, M.

AU - Ferenc, D.

AU - Fonseca, M. V.

AU - Font, L.

AU - García López, R. J.

AU - Garczarczyk, M.

AU - Giavitto, G.

AU - Godinović, N.

AU - Hadasch, D.

AU - Herrero, A.

AU - Hildebrand, D.

AU - Höhne-Mönch, D.

AU - Hose, J.

AU - Hrupec, D.

AU - Jogler, T.

AU - Klepser, S.

AU - Krähenb Ühl, T.

AU - Kranich, D.

AU - Krause, J.

AU - La Barbera, A.

AU - Leonardo, E.

AU - Lindfors, E.

AU - Lombardi, S.

AU - Longo, F.

AU - López, M.

AU - Lorenz, E.

AU - Majumdar, P.

AU - Makariev, M.

AU - Maneva, G.

AU - Mankuzhiyil, N.

AU - Mannheim, K.

AU - Maraschi, L.

AU - Mariotti, M.

AU - Martínez, M.

AU - Mazin, D.

AU - Meucci, M.

AU - Miranda, J. M.

AU - Mirzoyan, R.

AU - Miyamoto, H.

AU - Moldón, J.

AU - Moralejo, A.

AU - Nieto, D.

AU - Nilsson, K.

AU - Orito, R.

AU - Oya, I.

AU - Paoletti, R.

AU - Paredes, J. M.

AU - Partini, S.

AU - Pasanen, M.

AU - Pauss, F.

AU - Pegna, R. G.

AU - Perez-Torres, M. A.

AU - Persic, M.

AU - Peruzzo, L.

PY - 2010/11/10

Y1 - 2010/11/10

N2 - 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.

AB - 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.

KW - Galaxies: active

KW - Galaxies: individual (IC 310)

KW - Gamma rays: galaxies

U2 - 10.1088/2041-8205/723/2/L207

DO - 10.1088/2041-8205/723/2/L207

M3 - Article

VL - 723

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

SN - 2041-8205

IS - 2 PART 2

ER -