Bibcode
DOI
Albert, J.; Aliu, E.; Anderhub, H.; Antoranz, P.; Armada, A.; Baixeras, C.; Barrio, J. A.; Bartko, H.; Bastieri, D.; Becker, J. K.; Bednarek, W.; Berger, K.; Bigongiari, C.; Biland, A.; Bock, R. K.; Bordas, P.; Bosch-Ramon, V.; Bretz, T.; Britvitch, I.; Camara, M.; Carmona, E.; Chilingarian, A.; Coarasa, J. A.; Commichau, S.; Contreras, J. L.; Cortina, J.; Costado, M. T.; Curtef, V.; Danielyan, V.; Dazzi, F.; De Angelis, A.; Delgado, C.; 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.; Fuchs, M.; Galante, N.; García-López, R.; Garczarczyk, M.; Gaug, M.; Giller, M.; Goebel, F.; Hakobyan, D.; Hayashida, M.; Hengstebeck, T.; Herrero, A.; Höhne, D.; Hose, J.; Hsu, C. C.; Jacon, P.; Jogler, T.; Kosyra, R.; Kranich, D.; Kritzer, R.; Laille, A.; Lindfors, E.; Lombardi, S.; Longo, F.; López, J.; López, M.; Lorenz, E.; Majumdar, P.; Maneva, G.; Mannheim, K.; Mansutti, O.; Mariotti, M.; Martínez, M.; Mazin, D.; Merck, C.; Meucci, M.; Meyer, M.; Miranda, J. M.; Mirzoyan, R.; Mizobuchi, S.; Moralejo, A.; Nieto, D.; Nilsson, K.; Ninkovic, J.; Oña-Wilhelmi, E.; Otte, N.; Oya, I.; Paneque, D.; Panniello, M.; Paoletti, R.; Paredes, J. M.; Pasanen, M.; Pascoli, D.; Pauss, F.; Pegna, R.; Persic, M. et al.
Bibliographical reference
The Astrophysical Journal, Volume 674, Issue 2, pp. 1037-1055.
Advertised on:
2
2008
Journal
Citations
306
Refereed citations
209
Description
We report about very high energy (VHE) γ-ray observations of the
Crab Nebula with the MAGIC telescope. The γ-ray flux from the
nebula was measured between 60 GeV and 9 TeV. The energy spectrum can be
described by a curved power law dF/dE=f0(E/300
GeV)[a+blog10(E/300GeV)] with a flux normalization
f0 of (6.0+/-0.2stat)×10-10
cm-2 s-1 TeV-1,
a=-2.31+/-0.06stat, and b=-0.26+/-0.07stat. The
peak in the spectral energy distribution is estimated at 77+/-35 GeV.
Within the observation time and the experimental resolution of the
telescope, the γ-ray emission is steady and pointlike. The
emission's center of gravity coincides with the position of the pulsar.
Pulsed γ-ray emission from the pulsar could not be detected. We
constrain the cutoff energy of the pulsed spectrum to be less than 27
GeV, assuming that the differential energy spectrum has an exponential
cutoff. For a superexponential shape, the cutoff energy can be as high
as 60 GeV.
Related projects
Particle Astrophysics
The MAGIC Collaboration is integrated by 20 research institutes and university departments from Armenia, Bulgaria, Finland, Germany, Italy, Poland, Spain, Switzerland and USA. The collaboration comprises two 17m diameter telescopes, located at the Roque de los Muchachos Observatory, designed to measure the Cherenkov radiation associated with
Ramón
García López