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Imaging Atmospheric Cherenkov Telescopes (IACTs) need imaging optics with large apertures and high image intensities to map the faint Cherenkov light emitted from cosmic ray air showers onto their image sensors. Segmented reflectors fulfill…

Aims: $\gamma$ rays can be used as a tracer in the search of sources of Galactic cosmic rays (CRs). We present deep observations of the Galactic Centre (GC) region with the MAGIC telescopes, which we use for inferring the underlying CR…

High Energy Astrophysical Phenomena · Physics 2020-10-21 MAGIC Collaboration , V. A. Acciari , S. Ansoldi , L. A. Antonelli , A. Arbet Engels , D. Baack , A. Babić , B. Banerjee , U. Barres de Almeida , J. A. Barrio , J. Becerra González , W. Bednarek , L. Bellizzi , E. Bernardini , A. Berti , J. Besenrieder , W. Bhattacharyya , C. Bigongiari , A. Biland , O. Blanch , G. Bonnoli , Ž. Bošnjak , G. Busetto , R. Carosi , G. Ceribella , Y. Chai , A. Chilingaryan , S. Cikota , S. M. Colak , U. Colin , E. Colombo , J. L. Contreras , J. Cortina , S. Covino , V. D'Elia , P. Da Vela , F. Dazzi , A. De Angelis , B. De Lotto , M. Delfino , J. Delgado , D. Depaoli , F. Di Pierro , L. Di Venere , E. Do Souto Espiñeira , D. Dominis Prester , A. Donini , D. Dorner , M. Doro , D. Elsaesser , V. Fallah Ramazani , A. Fattorini , A. Fernández-Barral , G. Ferrara , D. Fidalgo , L. Foffano , M. V. Fonseca , L. Font , C. Fruck , S. Fukami , R. J. García López , M. Garczarczyk , S. Gasparyan , M. Gaug , N. Giglietto , F. Giordano , N. Godinović , D. Green , D. Guberman , D. Hadasch , A. Hahn , J. Herrera , J. Hoang , D. Hrupec , M. Hütten , T. Inada , S. Inoue , K. Ishio , Y. Iwamura , L. Jouvin , D. Kerszberg , H. Kubo , J. Kushida , A. Lamastra , D. Lelas , F. Leone , E. Lindfors , S. Lombardi , F. Longo , M. López , R. López-Coto , A. López-Oramas , S. Loporchio , B. Machado de Oliveira Fraga , C. Maggio , P. Majumdar , M. Makariev , M. Mallamaci , G. Maneva , M. Manganaro , K. Mannheim , L. Maraschi , M. Mariotti , M. Martínez , S. Masuda , D. Mazin , S. Mićanović , D. Miceli , M. Minev , J. M. Miranda , R. Mirzoyan , E. Molina , A. Moralejo , D. Morcuende , V. Moreno , E. Moretti , P. Munar-Adrover , V. Neustroev , C. Nigro , K. Nilsson , D. Ninci , K. Nishijima , K. Noda , L. Nogués , M. Nöthe , S. Nozaki , S. Paiano , J. Palacio , M. Palatiello , D. Paneque , R. Paoletti , J. M. Paredes , P. Peñil , M. Peresano , M. Persic , P. G. Prada Moroni , E. Prandini , I. Puljak , W. Rhode , M. Ribó , J. Rico , C. Righi , A. Rugliancich , L. Saha , N. Sahakyan , T. Saito , S. Sakurai , K. Satalecka , K. Schmidt , T. Schweizer , J. Sitarek , I. Šnidarić , D. Sobczynska , A. Somero , A. Stamerra , D. Strom , M. Strzys , Y. Suda , T. Surić , M. Takahashi , F. Tavecchio , P. Temnikov , T. Terzić , M. Teshima , N. Torres-Albà , L. Tosti , S. Tsujimoto , V. Vagelli , J. van Scherpenberg , G. Vanzo , M. Vazquez Acosta , C. F. Vigorito , V. Vitale , I. Vovk , M. Will , D. Zarić

The 17m Imaging Air shower Cherenkov Telescope MAGIC (Roque de los Muchachos Observatory, La Palma, Canary Islands) has recently entered its commissioning phase. One of the main goals of the MAGIC telescope project is to provide an…

Astrophysics · Physics 2008-11-26 Dominik Elsaesser , Karl Mannheim

The study of cosmic rays in the energy range from 1 to 1000 PeV is crucial for understanding their origins and propagation paths. As part of this research, a new SPHERE-3 installation is being developed, featuring enhanced light sensitivity…

Instrumentation and Methods for Astrophysics · Physics 2024-10-22 V. A. Ivanov , V. I. Galkin , E. A. Bonvech , T. M. Roganova , D. V. Chernov , D. A. Podgrudkov , M. D. Ziva , V. S. Latypova , C. G. Azra , E. L. Entina

MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes located on the Canary Island of La Palma and dedicated to the study of very high energy gamma rays above 30 GeV. MAGIC has recently demonstrated its capability as a neutrino…

High Energy Astrophysical Phenomena · Physics 2019-09-04 Manuela Mallamaci , Dariusz Gora , Elisa Bernardini

We present a new paradigm for the simulation of arrays of Imaging Atmospheric Cherenkov Telescopes (IACTs) which overcomes limitations of current approaches. Up to now, all major IACT experiments rely on the same Monte-Carlo simulation…

High Energy Astrophysical Phenomena · Physics 2017-11-06 M. Holler , J. Chevalier , J. -P. Lenain , M. de Naurois , D. Sanchez

The photon density on the ground is a fundamental quantity in all experiments based on Cherenkov light measurements, e.g. in the Imaging Air Cherenkov Telescopes (IACT). IACT's are commonly and successfully used in order to search and study…

Instrumentation and Methods for Astrophysics · Physics 2014-11-18 Dorota Sobczynska

The MAGIC 17m diameter Cherenkov telescope will be upgraded with a second telescope with advanced photon detectors and ultra fast readout within the year 2007. The sensitivity of MAGIC-II, the two telescope system, will be improved by a…

Astrophysics · Physics 2019-08-13 Florian Goebel

The Cherenkov Telescope Array (CTA) will be the next-generation gamma-ray observatory, investigating gamma-ray and cosmic ray astrophysics at energies from 20 GeV to more than 300 TeV. The observatory, consisting of large arrays of imaging…

High Energy Astrophysical Phenomena · Physics 2018-01-22 The CTA Consortium

The ground-based imaging atmospheric Cherenkov technique is currently the most powerful observation method for very high energy gamma rays. With its specially designed camera and readout system, the MAGIC Telescope is capable of observing…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 Daniel Britzger , Emiliano Carmona , Pratik Majumdar , Oscar Blanch , Javier Rico , Julian Sitarek , Robert Wagner

The Cherenkov Telescope Array is a next generation ground-based gamma-ray observatory de- signed to detect photons in the 20 GeV to 300 TeV energy range. With a sensitivity improvement of up to one order of magnitude on the entire energy…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Roberta Zanin , Jamie Holder

In recent years, imaging atmospheric Cherenkov telescopes (IACTs) have emerged as promising platforms for optical interferometry through the use of intensity interferometry. IACTs combine large segmented mirrors, photodetectors with…

Instrumentation and Methods for Astrophysics · Physics 2025-11-21 Juan Cortina , Alejo Cifuentes-Santos , Tarek Hassan , Fernando Frias

MAGIC is a stereoscopic system of two Imaging Air Cherenkov Telescopes (IACTs) located at La Palma (Canary Islands, Spain) and working in the field of very high energy gamma-ray astronomy. It makes use of a traditional digital trigger with…

Instrumentation and Methods for Astrophysics · Physics 2015-08-24 F. Dazzi , D. Herranz Lazaro , M. Lopez , D. Nakajima , J. Rodriguez Garcia , T. Schweizer

Observations with the Cherenkov telescopes are in principle limited to the clear sky conditions due to significant absorption of Cherenkov light by clouds. If the cloud level is high enough or the atmospheric transmission of the cloud is…

Instrumentation and Methods for Astrophysics · Physics 2015-06-23 Dorota Sobczynska , Wlodek Bednarek

Ground-based observations of Very High Energy (VHE) gamma rays from extreme astrophysical sources are significantly influenced by atmospheric conditions. This is due to the atmosphere being an integral part of the detector when utilizing…

Imaging atmospheric Cherenkov telescopes (IACTs) used for ground-based gamma-ray astronomy at TeV energies use reflectors with areas on the order of 100m$^2$ as their primary optic. These tessellated reflectors comprise hundreds of mirror…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 A. McCann , D. Hanna , J. Kildea , M. McCutcheon

MAGIC, a stereoscopic cherenkov telescope array, sensitive to gamma-rays between 50 GeV and several tens of TeV, is ideally suited to observe promising Fermi LAT sources with a hard \gamma-ray spectrum. Here we discuss the discovery of very…

High Energy Astrophysical Phenomena · Physics 2019-08-16 K. Berger , G. Giavitto , E. Lindfors , L. Takalo , D. Paneque , A. Stamerra

Imaging atmospheric Cherenkov telescope (IACT) arrays record images from air showers initiated by gamma rays entering the atmosphere, allowing astrophysical sources to be observed at very high energies. To maximize IACT sensitivity,…

Instrumentation and Methods for Astrophysics · Physics 2020-01-13 Aryeh Brill , Qi Feng , T. Brian Humensky , Bryan Kim , Daniel Nieto , Tjark Miener

The physics of the non-thermal Universe provides information on the acceleration mechanisms in extreme environments, such as black holes and relativistic jets, neutron stars, supernovae or clusters of galaxies. In the presence of magnetic…

Instrumentation and Methods for Astrophysics · Physics 2021-06-11 C. Boisson , A. M. Brown , A. Burtovoi , M. Cerruti , M. Chernyakova , T. Hassan , J. -P. Lenain , M. Manganaro , P. Romano , H. Sol , F. Tavecchio , S. Vercellone , L. Zampieri , R. Zanin , A. Zech , I. Agudo , R. Alves Batista , E. O. Anguner , L. A. Antonelli , M. Backes , C. Balazs , J. Becerra González , C. Bigongiari , E. Bissaldi , J. Bolmont , P. Bordas , Ž. Bošnjak , M. Böttcher , M. Burton , F. Cangemi , P. Caraveo , M. Cardillo , S. Caroff , A. Carosi , S. Casanova , S. Chaty , J. L. Contreras , J. G. Coelho , G. Cotter , A. D'Aì , F. D'Ammando , E. M. de Gouveia Dal Pino , D. de Martino , C. Delgado , D. della Volpe , A. Djannati-Ataï , R. C. Dos Anjos , E. de Oña Wilhelmi , V. Dwarkadas , G. Emery , E. Fedorova , S. Fegan , M. D. Filipovic , G. Galanti , D. Gasparrini , G. Ghirlanda , P. Goldoni , J. Granot , J. G. Green , M. Heller , B. Hnatyk , R. Hnatyk , D. Horan , T. Hovatta , S. Inoue , M. Jamrozy , B. Khélifi , N. Komin , K. Kohri , A. Lamastra , N. La Palombara , E. Lindfors , I. Liodakis , S. Lombardi , F. Longo , F. Lucarelli , P. L. Luque-Escamilla , J. Marti , M. Martinez , D. Mazin , J. D. Mbarubucyeye , S. Menchiari , L. Mohrmann , T. Montaruli , A. Moralejo Olaizola , D. Morcuende , G. Morlino , A. Morselli , C. G. Mundell , T. Murach , A. Nagai , A. Nayerhoda , J. Niemiec , M. Nikolajuk , B. Olmi , M. Orienti , J. M. Paredes , G. Pareschi , A. Pe'er , G. Pühlhofer , M. Punch , O. Reimer , M. Ribó , F. Rieger , G. Rodriguez , J. Rodriguez , G. Romeo , M. Roncadelli , G. Rowell , B. Rudak , I. Sadeh , F. Salesa Greus , U. Sawangwit , F. Schüssler , O. Sergijenko , R. C. Shellard , F. G. Saturni , A. Stamerra , Th. Stolarczyk , G. Tagliaferri , V. Testa , L. Tibaldo , S. Ventura , A. Viana , J. Vink , V. Vitale , S. Vorobiov , A. Wierzcholska , M. Zacharias , D. Zavrtanik

Gamma ray astronomy is now at the leading edge for studies related both to fundamental physics and astrophysics. The sensitivity of gamma detectors is limited by the huge amount of background, constituted by hadronic cosmic rays (typically…