Bibcode
DOI
Albert, J.; Aliu, E.; Anderhub, H.; Antoranz, P.; Armada, A.; Asensio, M.; Baixeras, C.; Barrio, J. A.; Bartelt, M.; Bartko, H.; Bastieri, D.; Bavikadi, R.; Bednarek, W.; Berger, K.; Bigongiari, C.; Biland, A.; Bisesi, E.; Bock, R. K.; Bretz, T.; Britvitch, I.; Camara, M.; Chilingarian, A.; Ciprini, S.; Coarasa, J. A.; Commichau, S.; Contreras, J. L.; Cortina, J.; Curtef, V.; Danielyan, V.; Dazzi, F.; De Angelis, A.; de los Reyes, R.; De Lotto, B.; Domingo-Santamaría, E.; Dorner, D.; Doro, M.; Errando, M.; Fagiolini, M.; Ferenc, D.; Fernández, E.; Firpo, R.; Flix, J.; Fonseca, M. V.; Font, L.; Galante, N.; Garczarczyk, M.; Gaug, M.; Giller, M.; Goebel, F.; Hakobyan, D.; Hayashida, M.; Hengstebeck, T.; Höhne, D.; Hose, J.; Jacon, P.; Kalekin, O.; Kranich, D.; Laille, A.; Lenisa, T.; Liebing, P.; Lindfors, E.; Longo, F.; López, J.; López, M.; Lorenz, E.; Lucarelli, F.; Majumdar, P.; Maneva, G.; Mannheim, K.; Mariotti, M.; Martínez, M.; Mase, K.; Mazin, D.; Merck, M.; Meucci, M.; Meyer, M.; Miranda, J. M.; Mirzoyan, R.; Mizobuchi, S.; Moralejo, A.; Nilsson, K.; Oña-Wilhelmi, E.; Orduña, R.; Otte, N.; Oya, I.; Paneque, D.; Paoletti, R.; Pasanen, M.; Pascoli, D.; Pauss, F.; Pavel, N.; Pegna, R.; Peruzzo, L.; Piccioli, A.; Prandini, E.; Rico, J.; Rhode, W.; Riegel, B.; Rissi, M.; Robert, A. et al.
Bibliographical reference
The Astrophysical Journal, Volume 638, Issue 2, pp. L101-L104.
Advertised on:
2
2006
Journal
Citations
168
Refereed citations
122
Description
Recently, the Galactic center has been reported to be a source of very
high energy (VHE) γ-rays by the CANGAROO, VERITAS, and HESS
experiments. The energy spectra as measured by these experiments show
substantial differences. In this Letter we present MAGIC observations of
the Galactic center, resulting in the detection of a differential
γ-ray flux consistent with a steady, hard-slope power law,
described as
dNγ/(dAdtdE)=(2.9+/-0.6)×10-12(E/TeV)-2.2+/-0.2
cm-2 s-1 TeV-1. The γ-ray source
is centered at (R.A., decl.) =
(17h45m20s, -29°2'). This result
confirms the previous measurements by the HESS experiment and indicates
a steady source of TeV γ-rays. We briefly describe the
observational technique used and the procedure implemented for the data
analysis, and we discuss the results in the perspective of different
models proposed for the acceleration of the VHE γ-rays.