Bibcode
Aleksić, J.; Alvarez, E. A.; Antonelli, L. A.; Antoranz, P.; Asensio, M.; 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.; Borla Tridon, D.; Braun, I.; Bretz, T.; 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 Caneva, G.; De Cea del Pozo, E.; De Lotto, B.; Delgado-Mendez, C.; Diago-Ortega, A.; Doert, M.; Domínguez, A.; Dominis Prester, D.; Dorner, D.; Doro, M.; Elsaesser, D.; Ferenc, D.; Fonseca, M. V.; Font, L.; Fruck, C.; García-López, R. J.; Garczarczyk, M.; Garrido, D.; Gaug, M.; Giavitto, G.; Godinović, N.; Hadasch, D.; Häfner, D.; Herrero, A.; Hildebrand, D.; Höhne-Mönch, D.; Hose, J.; Hrupec, D.; Huber, B.; Jogler, T.; Kellermann, H.; Klepser, S.; Krähenbühl, T.; Krause, J.; La Barbera, A.; Lelas, D.; Leonardo, E.; Lindfors, E.; Lombardi, S.; López, M.; López-Oramas, A.; Lorenz, E.; 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.; Munar-Adrover, P.; Nieto, D.; Nilsson, K.; Orito, R.; Oya, I.; Paneque, D.; Paoletti, R.; Pardo, S.; Paredes, J. M.; Partini, S.; Pasanen, M.; Pauss, F. et al.
Referencia bibliográfica
Astronomy and Astrophysics, Volume 544, id.A96
Fecha de publicación:
8
2012
Revista
Número de citas
28
Número de citas referidas
21
Descripción
Context. We present the results of a long M 87 monitoring campaign in
very high energy γ-rays with the MAGIC-I Cherenkov telescope. Aims: We aim to model the persistent non-thermal jet emission by
monitoring and characterizing the very high energy γ-ray emission
of M 87 during a low state. Methods: A total of 150 h of data
were taken between 2005 and 2007 with the single MAGIC-I telescope, out
of which 128.6 h survived the data quality selection. We also collected
data in the X-ray and Fermi-LAT bands from the literature (partially
contemporaneous). Results: No flaring activity was found during
the campaign. The source was found to be in a persistent low-emission
state, which was at a confidence level of 7σ. We present the
spectrum between 100 GeV and 2 TeV, which is consistent with a simple
power law with a photon index Γ = 2.21 ± 0.21 and a flux
normalization at 300 GeV of (7.7 ± 1.3) × 10-8
TeV-1 s-1 m-2. The extrapolation of the
MAGIC spectrum into the GeV energy range matches the previously
published Fermi-LAT spectrum well, covering a combined energy range of
four orders of magnitude with the same spectral index. We model the
broad band energy spectrum with a spine layer model, which can
satisfactorily describe our data.
Proyectos relacionados
![Telescopio MAGIC Project Image](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/project/Imagen%20RGL.png?h=a38a7f06&itok=UgLTRZyC)
Astrofísica de Partículas
El Grupo de Astrofísica de Partículas del IAC participa activamente en tres grandes colaboraciones internacionales de astrofísica de muy altas energías: AMS (Alpha Magnetic Spectrometer), los telescopios de radiación Cherenkov MAGIC I y II, y el Cherenkov Telescope Array (CTA). AMS es un detector de partículas diseñado para operar en el espacio, a
Ramón
García López