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We show that the Cherenkov Telescope Array (CTA) can realistically challenge the Inert Doublet Model, excluding its heavy regime up to dark matter masses of 800 GeV and probing a large fraction of the remaining viable parameter space at…

High Energy Physics - Phenomenology · Physics 2016-04-13 Farinaldo S. Queiroz , Carlos E. Yaguna

The Cherenkov Telescope Array (CTA) is the next generation observatory for very high energy gamma rays. The capability of the array to detect gamma-rays above 10 TeV is going to be achieved with a large number of Small Size Telescopes…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Anna Barnacka , Leszek Bogacz , Mira Grudzińska , Adam Frankowski , Mateusz Janiak , Piotr Lubiński , Rafał Moderski

Telescopes, designed with semi-conductor based photo sensors, have the potential to detect Cherenkov or fluorescence light emitted by cosmic-rays in the atmosphere. Such telescopes promise a high duty cycle and efficiency in remote harsh…

Instrumentation and Methods for Astrophysics · Physics 2015-11-06 Jan Auffenberg , Thomas Bretz , Lukas Middendorf , Tim Niggemann , Leif Rädel , Merlin Schaufel , Sebastian Schoenen , Johannes Schumacher , Christopher Wiebusch

A scheme for generation of monochromatic Cherenkov radiation in a thin dielectric layer is proposed. The electrons travel in vacuum parallel to a dielectric, exciting a single synchronous electromagnetic waveguide mode. The proposed scheme…

Optics · Physics 2025-09-18 Andrzej Szczepkowicz , Po-Wei Kuo , Yen-Cheh Huang

The Cherenkov Telescope Array Observatory (CTAO) is a next-generation facility for ground-based very high energy gamma ray astronomy. CTAO will be operated as an open observatory. With two sites, in the northern and southern hemispheres,…

Instrumentation and Methods for Astrophysics · Physics 2023-05-23 Werner Hofmann , Roberta Zanin

Ground-based gamma-ray astronomy experienced a major boost with the advent of the present generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) in the past decade. Photons of energies >~ 0.1 TeV are a very useful tool in the study…

High Energy Astrophysical Phenomena · Physics 2013-06-07 Abelardo Moralejo Olaizola

Atmospheric fluorescence is usually neglected in the reconstruction of the signals registered by Cherenkov telescopes, both IACTs and wide-angle detector arrays. In this paper we quantify the fluorescence contribution to the total light…

Instrumentation and Methods for Astrophysics · Physics 2018-12-10 Daniel Morcuende , Jaime Rosado , José Luis Contreras , Fernando Arqueros

We present a detailed thermal and structural analysis of a 2m class solar telescope mirror which is subjected to a varying heat load at an observatory site. A 3-dimensional heat transfer model of the mirror takes into account the heating…

Instrumentation and Methods for Astrophysics · Physics 2015-05-27 Ravinder K Banyal , B. Ravindra

The current generation of Imaging Atmospheric telescopes (IACTs) has demonstrated the power of this observational technique, providing high sensitivity and an angular resolution of $\sim0.1^{\circ}$ per event above an energy threshold of…

High Energy Astrophysical Phenomena · Physics 2009-01-21 S. Funk , J. A. Hinton

The Cherenkov Telescope Array (CTA) is the major next-generation observatory for ground-based very-high-energy gamma-ray astronomy. It will improve the sensitivity of current ground-based instruments by a factor of five to twenty, depending…

Instrumentation and Methods for Astrophysics · Physics 2019-04-17 A. Acharyya , I. Agudo , E. O. Angüner , R. Alfaro , J. Alfaro , C. Alispach , R. Aloisio , R. Alves Batista , J. -P. Amans , L. Amati , E. Amato , G. Ambrosi , L. A. Antonelli , C. Aramo , T. Armstrong , F. Arqueros , L. Arrabito , K. Asano , H. Ashkar , C. Balazs , M. Balbo , B. Balmaverde , P. Barai , A. Barbano , M. Barkov , U. Barres de Almeida , J. A. Barrio , D. Bastieri , J. Becerra González , J. Becker Tjus , L. Bellizzi , W. Benbow , E. Bernardini , M. I. Bernardos , K. Bernlöhr , A. Berti , M. Berton , B. Bertucci , V. Beshley , B. Biasuzzi , C. Bigongiari , R. Bird , E. Bissaldi , J. Biteau , O. Blanch , J. Blazek , C. Boisson , G. Bonanno , A. Bonardi , C. Bonavolontà , G. Bonnoli , P. Bordas , M. Böttcher , J. Bregeon , A. Brill , A. M. Brown , K. Brügge , P. Brun , P. Bruno , A. Bulgarelli , T. Bulik , M. Burton , A. Burtovoi , G. Busetto , R. Cameron , R. Canestrari , M. Capalbi , A. Caproni , R. Capuzzo-Dolcetta , P. Caraveo , S. Caroff , R. Carosi , S. Casanova , E. Cascone , F. Cassol , F. Catalani , O. Catalano , D. Cauz , M. Cerruti , S. Chaty , A. Chen , M. Chernyakova , G. Chiaro , M. Cieślar , S. M. Colak , V. Conforti , E. Congiu , J. L. Contreras , J. Cortina , A. Costa , H. Costantini , G. Cotter , P. Cristofari , P. Cumani , G. Cusumano , A. D'Aì , F. D'Ammando , L. Dangeon , P. Da Vela , F. Dazzi , A. De Angelis , V. De Caprio , R. de Cássia dos Anjos , F. De Frondat , E. M. de Gouveia Dal Pino , B. De Lotto , D. De Martino , M. de Naurois , E. de Oña Wilhelmi , F. de Palma , V. de Souza , M. Del Santo , C. Delgado , D. della Volpe , T. Di Girolamo , F. Di Pierro , L. Di Venere , C. Díaz , S. Diebold , A. Djannati-Ataï , A. Dmytriiev , D. Dominis Prester , A. Donini , D. Dorner , M. Doro , J. -L. Dournaux , J. Ebr , T. R. N. Ekoume , D. Elsässer , G. Emery , D. Falceta-Goncalves , E. Fedorova , S. Fegan , Q. Feng , G. Ferrand , E. Fiandrini , A. Fiasson , M. Filipovic , V. Fioretti , M. Fiori , S. Flis , M. V. Fonseca , G. Fontaine , L. Freixas Coromina , S. Fukami , Y. Fukui , S. Funk , M. Füßling , D. Gaggero , G. Galanti , R. J. Garcia López , M. Garczarczyk , D. Gascon , T. Gasparetto , M. Gaug , A. Ghalumyan , F. Gianotti , G. Giavitto , N. Giglietto , F. Giordano , M. Giroletti , J. Gironnet , J. -F. Glicenstein , R. Gnatyk , P. Goldoni , J. M. González , M. M. González , K. N. Gourgouliatos , T. Grabarczyk , J. Granot , D. Green , T. Greenshaw , M. -H. Grondin , O. Gueta , D. Hadasch , T. Hassan , M. Hayashida , M. Heller , O. Hervet , J. Hinton , N. Hiroshima , B. Hnatyk , W. Hofmann , P. Horvath , M. Hrabovsky , D. Hrupec , T. B. Humensky , M. Hütten , T. Inada , F. Iocco , M. Ionica , M. Iori , Y. Iwamura , M. Jamrozy , P. Janecek , D. Jankowsky , P. Jean , L. Jouvin , J. Jurysek , P. Kaaret , L. H. S. Kadowaki , S. Karkar , D. Kerszberg , B. Khélifi , D. Kieda , S. Kimeswenger , W. Kluźniak , J. Knapp , J. Knödlseder , Y. Kobayashi , B. Koch , J. Kocot , N. Komin , A. Kong , G. Kowal , M. Krause , H. Kubo , J. Kushida , P. Kushwaha , V. La Parola , G. La Rosa , M. Lallena Arquillo , R. G. Lang , J. Lapington , O. Le Blanc , J. Lefaucheur , M. A. Leigui de Oliveira , M. Lemoine-Goumard , J. -P. Lenain , G. Leto , R. Lico , E. Lindfors , T. Lohse , S. Lombardi , F. Longo , A. Lopez , M. López , A. Lopez-Oramas , R. López-Coto , S. Loporchio , P. L. Luque-Escamilla , E. Lyard , M. C. Maccarone , E. Mach , C. Maggio , P. Majumdar , G. Malaguti , M. Mallamaci , D. Mandat , G. Maneva , M. Manganaro , S. Mangano , M. Marculewicz , M. Mariotti , J. Martí , M. Martínez , G. Martínez , H. Martínez-Huerta , S. Masuda , N. Maxted , D. Mazin , J. -L. Meunier , M. Meyer , S. Micanovic , R. Millul , I. A. Minaya , A. Mitchell , T. Mizuno , R. Moderski , L. Mohrmann , T. Montaruli , A. Moralejo , D. Morcuende , G. Morlino , A. Morselli , E. Moulin , R. Mukherjee , P. Munar , C. Mundell , T. Murach , A. Nagai , T. Nagayoshi , T. Naito , T. Nakamori , R. Nemmen , J. Niemiec , D. Nieto , M. Nievas Rosillo , M. Nikołajuk , D. Ninci , K. Nishijima , K. Noda , D. Nosek , M. Nöthe , S. Nozaki , M. Ohishi , Y. Ohtani , A. Okumura , R. A. Ong , M. Orienti , R. Orito , M. Ostrowski , N. Otte , Z. Ou , I. Oya , A. Pagliaro , M. Palatiello , M. Palatka , R. Paoletti , J. M. Paredes , G. Pareschi , N. Parmiggiani , R. D. Parsons , B. Patricelli , A. Pe'er , M. Pech , P. Peñil Del Campo , J. Pérez-Romero , M. Perri , M. Persic , P. -O. Petrucci , O. Petruk , K. Pfrang , Q. Piel , E. Pietropaolo , M. Pohl , M. Polo , J. Poutanen , E. Prandini , N. Produit , H. Prokoph , M. Prouza , H. Przybilski , G. Pühlhofer , M. Punch , F. Queiroz , A. Quirrenbach , S. Rainò , R. Rando , S. Razzaque , O. Reimer , N. Renault-Tinacci , Y. Renier , D. Ribeiro , M. Ribó , J. Rico , F. Rieger , V. Rizi , G. Rodriguez Fernandez , J. C. Rodriguez-Ramirez , J. J. Rodríguez Vázquez , P. Romano , G. Romeo , M. Roncadelli , J. Rosado , G. Rowell , B. Rudak , A. Rugliancich , C. Rulten , I. Sadeh , L. Saha , T. Saito , S. Sakurai , F. Salesa Greus , P. Sangiorgi , H. Sano , M. Santander , A. Santangelo , R. Santos-Lima , A. Sanuy , K. Satalecka , F. G. Saturni , U. Sawangwit , S. Schlenstedt , P. Schovanek , F. Schussler , U. Schwanke , E. Sciacca , S. Scuderi , K. Sedlaczek , M. Seglar-Arroyo , O. Sergijenko , K. Seweryn , A. Shalchi , R. C. Shellard , H. Siejkowski , A. Sillanpää , A. Sinha , G. Sironi , V. Sliusar , A. Slowikowska , H. Sol , A. Specovius , S. Spencer , G. Spengler , A. Stamerra , S. Stanič , Ł. Stawarz , S. Stefanik , T. Stolarczyk , U. Straumann , T. Suomijarvi , P. Świerk , T. Szepieniec , G. Tagliaferri , H. Tajima , T. Tam , F. Tavecchio , L. Taylor , L. A. Tejedor , P. Temnikov , T. Terzic , V. Testa , L. Tibaldo , C. J. Todero Peixoto , F. Tokanai , L. Tomankova , D. Tonev , D. F. Torres , G. Tosti , L. Tosti , N. Tothill , F. Toussenel , G. Tovmassian , P. Travnicek , C. Trichard , G. Umana , V. Vagelli , M. Valentino , B. Vallage , P. Vallania , L. Valore , J. Vandenbroucke , G. S. Varner , G. Vasileiadis , V. Vassiliev , M. Vázquez Acosta , M. Vecchi , S. Vercellone , S. Vergani , G. P. Vettolani , A. Viana , C. F. Vigorito , J. Vink , V. Vitale , H. Voelk , A. Vollhardt , S. Vorobiov , S. J. Wagner , R. Walter , F. Werner , R. White , A. Wierzcholska , M. Will , D. A. Williams , R. Wischnewski , L. Yang , T. Yoshida , T. Yoshikoshi , M. Zacharias , L. Zampieri , M. Zavrtanik , D. Zavrtanik , A. A. Zdziarski , A. Zech , H. Zechlin , A. Zenin , V. I. Zhdanov , S. Zimmer , J. Zorn

A new project is developed with the implementation of a relatively new method of studying the primary cosmic ray -- the registration of extensive air showers' optical Vavilov-Cherenkov radiation (Cherenkov light) reflected from the snow…

Instrumentation and Methods for Astrophysics · Physics 2020-12-30 D. Chernov , E. Bonvech , M. Finger , M. Finger , V. Galkin , V. Ivanov , D. Podgrudkov , T. Roganova , I. Vaiman

The CTA is the next generation of ground based very high energy gamma ray Imaging Atmospheric Cherenkov Telescopes. Since observations with this technique are affected by atmospheric conditions, an accurate knowledge of the atmospheric…

The Cherenkov Telescope Array (CTA) will be the world's first open observatory for very high energy gamma-rays. Around a hundred telescopes of different sizes will be used to detect the Cherenkov light that results from gamma-ray induced…

Instrumentation and Methods for Astrophysics · Physics 2019-08-17 A. Zech , J. -P. Amans , S. Blake , C. Boisson , C. Costille , F. De-Frondat , J. -L. Dournaux , D. Dumas , G. Fasola , T. Greenshaw , O. Hervet , J. -M. Huet , P. Laporte , C. Rulten , D. Savoie , F. Sayede , J. Schmoll , H. Sol

The HEGRA system of Imaging Atmospheric Cherenkov Telescopes (IACTs) detects Cherenkov light produced by air showers. The concept of stereoscopic observation with the five HEGRA telescopes allows the reconstruction of various shower…

Astrophysics · Physics 2007-05-23 M. Doering , K. Bernloehr , G. Hermann , W. Hofmann , H. Lampeitl

The Cherenkov Telescope Array (CTA) represents the next generation of ground-based instruments for very-high-energy (VHE) gamma-ray astronomy, aimed at improving on the sensitivity of current-generation experiments by an order of magnitude…

Mirrors are a subset of optical components essential for the success of current and future space missions. Most of the telescopes for space programs ranging from Earth Observation to Astrophysics and covering all the electromagnetic…

Instrumentation and Methods for Astrophysics · Physics 2020-10-02 D. Garoli , L. V. Rodriguez De Marcos , J. I. Larruquert , A. J. Corso , R. Proietti Zaccaria , M. G. Pelizzo

The Cherenkov Telescope Array (CTA), conceived as an array of tens of imaging atmospheric Cherenkov telescopes (IACTs), is an international project for a next-generation ground-based gamma-ray observatory, aiming to improve on the…

Instrumentation and Methods for Astrophysics · Physics 2021-09-14 Tjark Miener , Daniel Nieto , Aryeh Brill , Samuel Spencer , Jose Luis Contreras

Reflective light concentrators with hexagonal entrance and exit apertures are frequently used at the focal plane of gamma-ray telescopes in order to reduce the size of the dead area caused by the geometries of the photodetectors, as well as…

Instrumentation and Methods for Astrophysics · Physics 2015-09-01 Akira Okumura , Sakiya Ono , Syunya Tanaka , Masaaki Hayashidad , Hideaki Katagiri , Tatsuo Yoshida

The Cherenkov Telescope Array is an observatory dedicated to very high energy gamma rays with unprecedented sensitivity between 20 GeV and 300 TeV to be installed on two sites: Canary Island La Palma and Paranal Chile. Three telescope sizes…

Instrumentation and Methods for Astrophysics · Physics 2019-07-22 J-F. Glicenstein

Cherenkov Telescope Array (CTA) is an upcoming instrument that will start a new generation of atmospheric Cherenkov telescopes. CTA is expected not only to provide an unprecedented sensitivity in the tens of GeV to hundreds of TeV range,…

Instrumentation and Methods for Astrophysics · Physics 2019-07-11 Julian Sitarek , Dorota Sobczyńska , Katarzyna Adamczyk , Michał Szanecki