Bibcode
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-Méndez, 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.; Krähenbühl, 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. et al.
Referencia bibliográfica
The Astrophysical Journal, Volume 726, Issue 2, article id. 58 (2011).
Fecha de publicación:
1
2011
Revista
Número de citas
33
Número de citas referidas
25
Descripción
We report new observations of the intermediate-frequency peaked BL
Lacertae object 3C 66A with the MAGIC telescopes. The data sample we use
were taken in 2009 December and 2010 January, and comprises 2.3 hr of
good quality data in stereoscopic mode. In this period, we find a
significant signal from the direction of the blazar 3C 66A. The new
MAGIC stereoscopic system is shown to play an essential role for the
separation between 3C 66A and the nearby radio galaxy 3C 66B, which is
at a distance of only 6'. The derived integral flux above 100 GeV is
8.3% of the Crab Nebula flux and the energy spectrum is reproduced by a
power law of photon index 3.64 ± 0.39stat ±
0.25sys. Within errors, this is compatible with the one
derived by VERITAS in 2009. From the spectra corrected for absorption by
the extragalactic background light, we only find small differences
between the four models that we applied, and constrain the redshift of
the blazar to z < 0.68.