Observation of Pulsed γ-Rays Above 25 GeV from the Crab Pulsar with MAGIC

  title={Observation of Pulsed $\gamma$-Rays Above 25 GeV from the Crab Pulsar with MAGIC},
  author={Ester Aliu and H. Anderhub and Lucio Angelo Antonelli and P. Antoranz and Michael Backes and C. Baixeras and J. A. Barrio and Hendrik Bartko and Denis Bastieri and J. K. Becker and W. Bednarek and Karsten Berger and Elisa Bernardini and Ciro Bigongiari and Adrian Biland and R. K. Bock and G. Bonnoli and P. Bordas and Valenti Bosch-Ramon and Thomas Bretz and Ilia Britvitch and M. Camara and Emiliano Carmona and Ashot A. Chilingarian and Sebastian Commichau and J. L. Contreras and J. Cortina and M. T. Costado and Stefano Covino and Valentin Curtef and Francesco Dazzi and Alessandro De Angelis and Elsa de Cea del Pozo and Raquel De Los Reyes and B. De Lotto and Marcello De Maria and F. de Sabata and C. Delgado Mendez and Alberto Dom{\'i}nguez and Daniela Dorner and Michele Doro and D Els{\"a}sser and Manel Errando and Michela Fagiolini and Daniel Ferenc and Enrique Fern{\'a}ndez and Roger Firpo and M. Victoria Fonseca and Ll. Font and Nicola Galante and R. J. Garc{\'i}a L{\'o}pez and Markus Garczarczyk and Markus Gaug and Florian Goebel and D. Hadasch and Morihiro Hayashida and Ana Herrero and Daniel H{\"o}hne and Juergen Hose and C. C. Hsu and S. Huber and T. Jogler and Daniel Kranich and Aurelio La Barbera and A. Laille and Elvira Leonardo and Eila Lindfors and S. Lombardi and Francesco Longo and M. Rutz Lopez and Eckart Lorenz and Pratik Majumdar and Galina Maneva and Nijil Mankuzhiyil and Karl Mannheim and Laura Maraschi and Mose Mariotti and M. Mart{\'i}nez and D. Mazin and M. Meucci and Manuel Meyer and J. M. Miranda and Razmik Mirzoyan and Mariano Mol{\'e}s and A. Moralejo and D. Nieto and Kari Nilsson and Jelena Ninkovi{\'c} and N. Otte and I. Oya and Riccardo Paoletti and Josep Maria Paredes and Mikko Pasanen and Donatella Pascoli and Felicitas Pauss and R. G. Pegna and Miguel A. P{\'e}rez-Torres and Massimo Persic and Luigi Peruzzo and Alessio Piccioli and Francisco Prada and E. Prandini and Neus Puchades and A. Raymers and Wolfgang Rhode and Marc Rib{\'o} and Javier Rico and Michael Rissi and Anne Robert and Stefan R{\"u}gamer and Antonio Saggion and T. Saito and Marco Salvati and M. S{\'a}nchez-Conde and P. Sartori and Konstancja Satalecka and Villi Scalzotto and Valeria Scapin and Thomas Schweizer and Maxim Shayduk and Kenji Shinozaki and Steven N. Shore and N{\'u}ria Sidro and Agnieszka Sierpowska-Bartosik and Aimo Sillanp{\"a}{\"a} and D. Sobczynska and Felix Spanier and A. Stamerra and Luisa Sabrina Stark and Leo O. Takalo and Fabrizio Tavecchio and P. Temnikov and Diego Tescaro and Masahiro Teshima and Martin Tluczykont and Diego F. Torres and Nicola Turini and H. P. Vankov and Alessio Venturini and Vincenzo Vitale and R. Mark Wagner and Wolfgang Wittek and V'ictor Zabalza and Fabio Zandanel and Roberta Zanin and J. Zapatero and O. C. de Jager and Emma de O{\~n}a Wilhelmi},
  pages={1221 - 1224}
One fundamental question about pulsars concerns the mechanism of their pulsed electromagnetic emission. Measuring the high-end region of a pulsar's spectrum would shed light on this question. By developing a new electronic trigger, we lowered the threshold of the Major Atmospheric γ-ray Imaging Cherenkov (MAGIC) telescope to 25 giga–electron volts. In this configuration, we detected pulsed γ-rays from the Crab pulsar that were greater than 25 giga–electron volts, revealing a relatively high… 

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My thesis deals with a fundamental question of high energy gamma-ray astronomy. Namely, I studied the cut-off shape of the Crab pulsar spectrum to distinguish between the leading scenarios for the

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The Crab Nebula is the most studied object in the gamma-ray sky. Yet there are many important unanswered questions on the interrelation between the gamma-ray emission from the Pulsar and the Nebula.


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MAGIC and the very high energy gamma-ray sky

  • B. Fraga
  • Physics
    Proceedings of International Conference on Black Holes as Cosmic Batteries: UHECRs and Multimessenger Astronomy — PoS(BHCB2018)
  • 2019
MAGIC is a system of two 17m Cherenkov telescopes for very high energy gamma-ray and cosmic-ray astrophysics and currently one of the best performing in the field. Through the discovery of more than


The observations of gamma-ray emission from pulsars with the Fermi-LAT detector and the detection of the Crab pulsar with the VERITAS array of Cherenkov telescopes at energies above 100 GeV make it

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Context. More than one hundred GeV pulsars have been detected up to now by the LAT telescope on the Fermi gamma-ray observatory, showing peak energies around a few GeV. Current m proposes that the



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We present the time-averaged characteristics of the Crab pulsar in the 0.75{30 MeV energy window using data from the imaging Compton Telescope COMPTEL aboard the Compton Gamma-Ray Observatory (CGRO)

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We have converted the former solar electrical plant THEMIS (French Pyrenees) into an atmospheric Cerenkov detector called CELESTE, which records gamma rays above 30 GeV (7 × 1024 Hz). Here we present

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The Crab supernova remnant has been observed regularly with the stereoscopic system of five imaging air Cerenkov telescopes that was part of the High Energy Gamma Ray Astronomy (HEGRA) experiment. In

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The development of pair photon cascades initiated by high energy electrons above a pulsar polar cap is simulated numerically. The calculation uses the energy of the primary electron, the magnetic