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In recent years, Imaging Atmospheric Cherenkov Telescopes (IACTs) have discovered a rich diversity of very high energy (VHE, > 100 GeV) gamma-ray emitters in the sky. These instruments image Cherenkov light emitted by gamma-ray induced…

Instrumentation and Methods for Astrophysics · Physics 2009-05-27 Stefan Ohm , Christopher van Eldik , Kathrin Egberts

In this paper we proposed a joint reconstruction of \gray events using both extensive air array (EAS) and Imaging air Cherenkov Telescope array (IACT). We considered eight Cherenkov telescopes to be built on the LHAASO (Large High Altitude…

High Energy Astrophysical Phenomena · Physics 2024-09-23 Zhipeng Zhang , Ruizhi Yang , Shoushan Zhang , Liqiao Yin , Jiali Liu , Yudong Wang , Lingling Ma , Zhen Cao

The Imaging Air Cherenkov Telescopes (IACTs), like, HESS, MAGIC and VERITAS well demonstrated their performances by showing many exciting results at very high energy gamma ray domain, mainly between 100 GeV and 10 TeV. It is important to…

Instrumentation and Methods for Astrophysics · Physics 2009-06-26 M. Teshima , E. Carmona , P. Colin , P. Majumdar , T. Schweizer

Telescopes based on the imaging atmospheric Cherenkov technique (IACTs) detect images of the atmospheric showers generated by gamma rays and cosmic rays as they are absorbed by the atmosphere. The much more frequent cosmic-ray events form…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 D. Nieto , A. Brill , B. Kim , T. B. Humensky

The Very Energetic Radiation Imaging Telescope Array System (VERITAS) represents an important step forward in the study of extreme astrophysical processes in the universe. It combines the power of the atmospheric Cherenkov imaging technique…

Astrophysics · Physics 2008-11-26 T. C. Weekes

High resolution N-body simulations have revealed the survival of considerable substructure within galactic halos. Assuming that the predicted dark matter clumps are composed of annihilating neutralinos, we examine their detectability via…

Astrophysics · Physics 2011-05-12 A. Tasitsiomi , A. V. Olinto

Imaging Atmospheric Cherenkov Telescopes (IACTs) use large-aperture (~ 10 - 30 m) optical telescopes with arcminute angular resolution to detect TeV gamma-rays in the atmosphere. I show that IACTs are well-suited for optical observations of…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 Brian C. Lacki

Imaging Atmospheric Cherenkov Telescopes (IACTs) have resulted in a breakthrough in very-high energy (VHE) gamma-ray astrophysics. While early IACT installations faced the problem of detecting any sources at all, current instruments are…

Astrophysics · Physics 2009-11-19 Konrad Bernlohr

VERITAS is an array of Imaging Atmospheric Cherenkov Telescopes designed for very high energy gamma ray (E>100,GeV) observations of astrophysical sources. The experiment began its scientific observation program in the 2006/2007 observing…

Astrophysics · Physics 2019-08-13 M. K. Daniel

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) are used to observe very high-energy photons from the ground. Gamma rays are indirectly detected through the Cherenkov light emitted by the air showers they induce. The new generation of…

High Energy Astrophysical Phenomena · Physics 2024-11-27 CTA-LST Project , : , K. Abe , S. Abe , A. Abhishek , F. Acero , A. Aguasca-Cabot , I. Agudo , C. Alispach , N. Alvarez Crespo , D. Ambrosino , L. A. Antonelli , C. Aramo , A. Arbet-Engels , C. Arcaro , K. Asano , P. Aubert , A. Baktash , M. Balbo , A. Bamba , A. Baquero Larriva , U. Barres de Almeida , J. A. Barrio , L. Barrios Jiménez , I. Batkovic , J. Baxter , J. Becerra González , E. Bernardini , J. Bernete Medrano , A. Berti , I. Bezshyiko , P. Bhattacharjee , C. Bigongiari , E. Bissaldi , O. Blanch , G. Bonnoli , P. Bordas , G. Borkowski , G. Brunelli , A. Bulgarelli , I. Burelli , L. Burmistrov , M. Buscemi , M. Cardillo , S. Caroff , A. Carosi , M. S. Carrasco , F. Cassol , N. Castrejón , D. Cauz , D. Cerasole , G. Ceribella , Y. Chai , K. Cheng , A. Chiavassa , M. Chikawa , G. Chon , L. Chytka , G. M. Cicciari , A. Cifuentes , J. L. Contreras , J. Cortina , H. Costantini , P. Da Vela , M. Dalchenko , F. Dazzi , A. De Angelis , M. de Bony de Lavergne , B. De Lotto , R. de Menezes , R. Del Burgo , L. Del Peral , C. Delgado , J. Delgado Mengual , D. della Volpe , M. Dellaiera , A. Di Piano , F. Di Pierro , R. Di Tria , L. Di Venere , C. Díaz , R. M. Dominik , D. Dominis Prester , A. Donini , D. Dorner , M. Doro , L. Eisenberger , D. Elsässer , G. Emery , J. Escudero , V. Fallah Ramazani , F. Ferrarotto , A. Fiasson , L. Foffano , L. Freixas Coromina , S. Fröse , Y. Fukazawa , R. Garcia López , C. Gasbarra , D. Gasparrini , D. Geyer , J. Giesbrecht Paiva , N. Giglietto , F. Giordano , P. Gliwny , N. Godinovic , R. Grau , D. Green , J. Green , S. Gunji , P. Günther , J. Hackfeld , D. Hadasch , A. Hahn , T. Hassan , K. Hayashi , L. Heckmann , M. Heller , J. Herrera Llorente , K. Hirotani , D. Hoffmann , D. Horns , J. Houles , M. Hrabovsky , D. Hrupec , D. Hui , M. Iarlori , R. Imazawa , T. Inada , Y. Inome , S. Inoue , K. Ioka , M. Iori , A. Iuliano , I. Jimenez Martinez , J. Jimenez Quiles , J. Jurysek , M. Kagaya , O. Kalashev , V. Karas , H. Katagiri , J. Kataoka , D. Kerszberg , Y. Kobayashi , K. Kohri , A. Kong , H. Kubo , J. Kushida , M. Lainez , G. Lamanna , A. Lamastra , L. Lemoigne , M. Linhoff , F. Longo , R. López-Coto , A. López-Oramas , S. Loporchio , A. Lorini , J. Lozano Bahilo , H. Luciani , P. L. Luque-Escamilla , P. Majumdar , M. Makariev , M. Mallamaci , D. Mandat , M. Manganaro , G. Manicò , K. Mannheim , S. Marchesi , M. Mariotti , P. Marquez , G. Marsella , J. Martí , O. Martinez , G. Martínez , M. Martínez , A. Mas-Aguilar , G. Maurin , D. Mazin , J. Méndez-Gallego , E. Mestre Guillen , S. Micanovic , D. Miceli , T. Miener , J. M. Miranda , R. Mirzoyan , T. Mizuno , M. Molero Gonzalez , E. Molina , T. Montaruli , A. Moralejo , D. Morcuende , A. Morselli , V. Moya , H. Muraishi , S. Nagataki , T. Nakamori , A. Neronov , L. Nickel , M. Nievas Rosillo , L. Nikolic , K. Nishijima , K. Noda , D. Nosek , V. Novotny , S. Nozaki , M. Ohishi , Y. Ohtani , T. Oka , A. Okumura , R. Orito , J. Otero-Santos , P. Ottanelli , E. Owen , M. Palatiello , D. Paneque , F. R. Pantaleo , R. Paoletti , J. M. Paredes , M. Pech , M. Pecimotika , M. Peresano , F. Pfeifle , E. Pietropaolo , M. Pihet , G. Pirola , C. Plard , F. Podobnik , E. Pons , E. Prandini , C. Priyadarshi , M. Prouza , S. Rainò , R. Rando , W. Rhode , M. Ribó , C. Righi , V. Rizi , G. Rodriguez Fernandez , M. D. Rodríguez Frías , A. Ruina , E. Ruiz-Velasco , T. Saito , S. Sakurai , D. A. Sanchez , H. Sano , T. Šarić , Y. Sato , F. G. Saturni , V. Savchenko , F. Schiavone , B. Schleicher , F. Schmuckermaier , J. L. Schubert , F. Schussler , T. Schweizer , M. Seglar Arroyo , T. Siegert , J. Sitarek , V. Sliusar , J. Strišković , M. Strzys , Y. Suda , H. Tajima , H. Takahashi , M. Takahashi , J. Takata , R. Takeishi , P. H. T. Tam , S. J. Tanaka , D. Tateishi , T. Tavernier , P. Temnikov , Y. Terada , K. Terauchi , T. Terzic , M. Teshima , M. Tluczykont , F. Tokanai , D. F. Torres , P. Travnicek , A. Tutone , M. Vacula , P. Vallania , J. van Scherpenberg , M. Vázquez Acosta , S. Ventura , G. Verna , I. Viale , A. Vigliano , C. F. Vigorito , E. Visentin , V. Vitale , V. Voitsekhovskyi , G. Voutsinas , I. Vovk , T. Vuillaume , R. Walter , L. Wan , M. Will , J. Wójtowicz , T. Yamamoto , R. Yamazaki , P. K. H. Yeung , T. Yoshida , T. Yoshikoshi , W. Zhang , N. Zywucka

Ground-based composition measurements of high-energy cosmic rays can be significantly improved by using the direct Cherenkov method. This technique targets the Cherenkov light produced by the primary particle prior to its production of an…

Astrophysics · Physics 2019-08-13 S. A. Wissel

Based on the Monte Carlo simulations we have studied the performance of the HEGRA system of imaging air Cherenkov telescopes (IACTs) in its present configuration of 4 IACTs as well as in its future final configuration of 5 IACTs. Here we…

Astrophysics · Physics 2009-10-31 A. Konopelko , M. Hemberger , F. Aharonian

The presence of moonlight is usually a limiting factor for imaging atmospheric Cherenkov telescopes due to the high sensitivity of the camera photomultiplier tubes (PMTs). In their standard configuration, the extra noise limits the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 Sean Griffin

A new concept for the direct measurement of muons in air showers is presented. The concept is based on resistive plate chambers (RPCs), which can directly measure muons with very good space and time resolution. The muon detector is shielded…

New deep learning techniques present promising new analysis methods for Imaging Atmospheric Cherenkov Telescopes (IACTs) such as the upcoming Cherenkov Telescope Array (CTA). In particular, the use of Convolutional Neural Networks (CNNs)…

Instrumentation and Methods for Astrophysics · Physics 2021-03-31 Samuel Spencer , Thomas Armstrong , Jason Watson , Salvatore Mangano , Yves Renier , Garret Cotter

Gamma-ray observations ranging from hundreds of MeV to tens of TeV are a valuable tool for studying particle acceleration and diffusion within our galaxy. Supernova remnants, pulsar wind nebulae, and star-forming regions are the main…

High Energy Astrophysical Phenomena · Physics 2021-08-19 Alisha Chromey

The Cherenkov Telescope Array (CTA) will be the next generation observatory employing different types of Cherenkov telescopes for the detection of particle showers initiated by very-high-energy gamma rays. A good knowledge of the Earth's…

Instrumentation and Methods for Astrophysics · Physics 2018-01-22 Stanislav Stefanik , Raquel de los Reyes , Dalibor Nosek

Understanding the sources, acceleration mechanisms, and propagation of cosmic rays is an active area of research in astro-particle physics. Measuring the spectrum and elemental composition of cosmic rays on earth can help solve this…

Instrumentation and Methods for Astrophysics · Physics 2015-08-20 Henrike Fleischhack

Atmospheric monitoring is an integral part of the design of the Cherenkov Telescope Array (CTA), as atmospheric conditions affect the observations by Imaging Atmospheric Cherenkov Telescopes (IACT) in multiple ways. The variable optical…

Instrumentation and Methods for Astrophysics · Physics 2018-01-22 Jan Ebr , Tomasz Bulik , Lluis Font , Markus Gaug , Petr Janecek , Jakub Jurysek , Dusan Mandat , Stanislav Stefanik , Laura Valore , George Vasileiadis