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.; Eisenacher, D.; Elsaesser, D.; Ferenc, D.; Fonseca, M. V.; Font, L.; Fruck, C.; García-López, R. J.; Garczarczyk, M.; Garrido, D.; Giavitto, G.; Godinović, N.; Hadasch, D.; Häfner, D.; Herrero, A.; Hildebrand, D.; Höhne-Mönch, D.; Hose, J.; Hrupec, D.; Jogler, T.; Kellermann, H.; Klepser, S.; Krähenbühl, T.; Krause, J.; Kushida, J.; La Barbera, A.; Lelas, D.; Leonardo, E.; Lewandowska, N.; 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.; Moldón, J.; Moralejo, A.; Munar-Adrover, P.; Niedzwiecki, A.; Nieto, D.; Nilsson, K.; Nowak, N.; Orito, R.; Paneque, D.; Paoletti, R.; Pardo, S.; Paredes, J. M.; Partini, S.; Perez-Torres, M. A. et al.
    Bibliographical reference
                                    Astronomy and Astrophysics, Volume 540, id.A69
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                        4
            
                        2012
            
  Journal
                                    
                            Citations
                                    107
                            Refereed citations
                                    74
                            Description
                                    We use 73 h of stereoscopic data taken with the MAGIC telescopes to
investigate the very high-energy (VHE) gamma-ray emission of the Crab
pulsar. Our data show a highly significant pulsed signal in the energy
range from 50 to 400 GeV in both the main pulse (P1) and the interpulse
(P2) phase regions. We provide the widest spectra to date of the VHE
components of both peaks, and these spectra extend to the energy range
of satellite-borne observatories. The good resolution and background
rejection of the stereoscopic MAGIC system allows us to cross-check the
correctness of each spectral point of the pulsar by comparison with the
corresponding (strong and well-known) Crab nebula flux. The spectra of
both P1 and P2 are compatible with power laws with photon indices of 4.0
± 0.8 (P1) and 3.42 ± 0.26 (P2), respectively, and the
ratio P1/P2 between the photon counts of the two pulses is 0.54 ±
0.12. The VHE emission can be understood as an additional component
produced by the inverse Compton scattering of secondary and tertiary
e± pairs on IR-UV photons.
                            Related projects
                 
Particle Astrophysics
            
    The members of the Particle Astrophysics Group of the IAC participate actively in three large international collaborations of high-energy astrophysics: AMS-02 (Alpha Magnetic Spectrometer), the Cherenkov radiation telescopes MAGIC I and II and the Cherenkov Telescope Array Observatory ( CTAO). We also participate in the ASTRI mini-array, the gamma
            
            Mónica Luisa
            
                        Vázquez Acosta