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Usually the Imaging Atmospheric Cherenkov Telescopes, used for the ground-based gamma-ray astronomy in the very high energy range 50 GeV - 50 TeV, perform air shower observations till the zenith angle of ~60 deg. Beyond that limit the…

The next generation instrument for ground-based gamma-ray astronomy will be the Cherenkov Telescope Array (CTA), consisting of approximately 100 telescopes in three sizes, built on two sites with one each in the Northern and Southern Hemi-…

Instrumentation and Methods for Astrophysics · Physics 2017-08-09 Louise Oakes , Markus Garczarczyk , Stephan Kaphle , Michael Mayer , Stefan Schlenstedt

Molecular clouds act as primary targets for cosmic-ray interactions and are expected to shine in gamma-rays as a by-product of these interactions. Indeed several detected gamma-ray sources both in HE and VHE gamma-rays (HE: 100 MeV < E <…

High Energy Astrophysical Phenomena · Physics 2015-06-12 G. Pedaletti , D. F. Torres , S. Gabici , E. de Oña Wilhelmi , D. Mazin , V. Stamatescu

The Cherenkov Telescope Array (CTA) is the planned next-generation instrument for ground-based gamma-ray astronomy, covering a photon energy range of ~20 GeV to above 100 TeV. CTA will consist of the order of 100 telescopes of three sizes,…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 G. Pühlhofer

The upcoming Cherenkov Telescope Array (CTA) project is expected to provide unprecedented sensitivity in the low-energy (<~100 GeV) range for Cherenkov telescopes. Most of the remaining background in this energy range results from…

Instrumentation and Methods for Astrophysics · Physics 2017-11-29 Julian Sitarek , Dorota Sobczyńska , Michał Szanecki , Katarzyna Adamczyk , Paolo Cumani , Abelardo Moralejo

The Cherenkov Telescope Array (CTA) will be the next generation instrument for the very high energy gamma-ray astrophysics domain. With its enhanced sensitivity in comparison with the current facilities, CTA is expected to shed light on a…

High Energy Astrophysical Phenomena · Physics 2020-01-08 Enrique Mestre , Emma de Oña Wilhelmi , Roberta Zanin , Diego F. Torres , Luigi Tibaldo

Surveys open up unbiased discovery space and generate legacy datasets of long-lasting value. One of the goals of imaging arrays of Cherenkov telescopes like CTA is to survey areas of the sky for faint very high energy gamma-ray (VHE)…

High Energy Astrophysical Phenomena · Physics 2019-08-14 G. Dubus , J. L. Contreras , S. Funk , Y. Gallant , T. Hassan , J. Hinton , Y. Inoue , J. Knödlseder , P. Martin , N. Mirabal , M. de Naurois , M. Renaud

The Cherenkov Telescope Array (CTA) is the next generation gamma-ray observatory. CTA will incorporate about 100 imaging atmospheric Cherenkov telescopes (IACTs) at a southern site, and about 20 in the north. Previous IACT experiments have…

Instrumentation and Methods for Astrophysics · Physics 2020-05-22 Iftach Sadeh , Igor Oya , Joseph Schwarz , Emmanuel Pietriga , Dejan Dezman

The current generation of Imaging Atmospheric Cherenkov Telescopes (IACTs), including the H.E.S.S., MAGIC, and VERITAS telescope arrays, have made substantial contributions to our knowledge about the structure and composition of the highly…

High Energy Astrophysical Phenomena · Physics 2012-05-17 Henric Krawczynski

Mechanics of the camera for the large size telescopes of CTA must protect and provide a stable environment for its instrumentation. This is achieved by a stiff support structure enclosed in an air and water tight volume. The structure is…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Carlos Delgado , Oscar Blanch , Carlos Diaz , Noemi Hamer , Ohoka Hideyuki , Razmik Mirzoyan , Masahiro Teshima , Holger Wetteskind , Tokonatsu Yamamoto

The Cherenkov Telescope Array (CTA) will be the future observatory for TeV gamma-ray astronomy. In order to increase the sensitivity and to extend the energy coverage beyond the capabilities of current facilities, its design concept…

Instrumentation and Methods for Astrophysics · Physics 2017-08-09 S. Diebold , J. Dick , G. Pühlhofer , S. Renner , A. Santangelo , T. Schanz , C. Tenzer , the CTA Consortium

Over the last three decades, the ground-based technique of imaging atmospheric Cherenkov telescopes has established itself as a powerful scientific discipline. About 250 very high gamma-ray sources of both galactic and extragalactic origin…

Instrumentation and Methods for Astrophysics · Physics 2024-11-18 Razmik Mirzoyan

A FRAM (F/(Ph)otometric Robotic Atmospheric Monitor) telescope is a system of a robotic mount, a large-format CCD camera and a fast telephoto lens that can be used for atmospheric monitoring at any site when information about the…

The Imaging Atmospheric Cherenkov technique allows to detect very high energy gamma rays from few tens of GeV to hundreds of TeV using ground-based instrumentation. At these energies a gamma ray generates a shower of secondary particles…

Instrumentation and Methods for Astrophysics · Physics 2023-06-13 Juan Cortina , Carlos Delgado

The Cherenkov Telescope Array (CTA) observatory for very high-energy gamma rays will consist of about a hundred of imaging atmospheric Cherenkov telescopes (IACTs) of different size with a total reflective area of about 10,000 m$^2$. Here…

Instrumentation and Methods for Astrophysics · Physics 2015-09-07 Jerzy Michałowski , Michal Dyrda , Jacek Niemiec , Maciej Sowiński , Marek Stodulski

In gamma-ray astronomy through Imaging Atmospheric Cherenkov Telescopes (IACT), the atmosphere is used as a calorimeter. Incident gamma-rays in the GeV-TeV energy range are observed through the electromagnetic showers they produce in the…

High Energy Astrophysical Phenomena · Physics 2020-11-02 S. Sajjad , A. Falvard

The sensitivity of an Imaging Atmospheric Cherenkov telescope is calibrated by shining, from a distant pulsed monochromatic light source, a defined photon flux onto the mirror. The light pulse is captured and reconstructed by the telescope…

Astrophysics · Physics 2009-10-30 A. Frass , C. Koehler , G. Hermann , M. Hess , W. Hofmann

The Cherenkov Telescope Array (CTA) is the next-generation gamma-ray observatory that is expected to reach one order of magnitude better sensitivity than that of current telescope arrays. The Large-Sized Telescopes (LSTs) have an essential…

Instrumentation and Methods for Astrophysics · Physics 2021-08-23 Yukiho Kobayashi , Akira Okumura , Franca Cassol , Hideaki Katagiri , Julian Sitarek , Paweł Gliwny , Seiya Nozaki , Yuto Nogami

The Cherenkov Telescope Array (CTA) will be the next generation ground-based very-high-energy gamma-ray observatory, constituted by tens of Imaging Atmospheric Cherenkov Telescopes at two sites once its construction and commissioning are…

Instrumentation and Methods for Astrophysics · Physics 2023-09-29 Rune Michael Dominik , Maximilian Linhoff , Julian Sitarek