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A review of very high energy gamma-ray astronomy is presented. Particular attention is paid to the atmospheric Cherenkov imaging technique whose employment has resulted in detections of both galactic and extra-galactic objects at energies…

天体物理学 · 物理学 2007-05-23 Stephen Fegan

CANGAROO-III is an Imaging Atmospheric Cherenkov Telescope (IACT) array of four 10 m telescopes for very high energy (sub-TeV) gamma-ray astronomy. A design study of the CANGAROO-III telescope system was carried out using the Monte Carlo…

天体物理学 · 物理学 2014-10-13 R. Enomoto , S. Hara , CANGAROO collaboration

The possibility to use Cherenkov light measurements with Cherenkov telescope to study atmospheric processes is shown. Cherenkov light from extensive air showers is obtained using Monte Carlo simulations with CORSIKA code. Different…

大气与海洋物理 · 物理学 2009-10-12 A. Mishev

Measurement of diffuse gamma-ray emission from the Milky Way with Imaging Atmospheric Cherenkov Telescopes (IACT) is difficult because of high level of charged cosmic ray background and small field-of-view. We show that such a measurement…

高能天体物理现象 · 物理学 2020-05-13 A. Neronov , D. Semikoz

Current optimization of ground-based Cherenkov telescopes arrays, also called Imaging Air Cherenkov Telescope (IACT) arrays, relies on brute-force human-driven approaches based on large simulations requiring both high amount of storage and…

天体物理仪器与方法 · 物理学 2026-01-13 Cyril Alispach , Matthieu Heller , Teresa Montaruli

The Tunka Advanced Instrument for Gamma- and cosmic-ray Astronomy (TAIGA) is a multicomponent experiment for the measurement of TeV to PeV gamma- and cosmic rays. Our goal is to establish a novel hybrid direct air shower technique,…

天体物理仪器与方法 · 物理学 2023-01-27 M. Blank , M. Tluczykont , A. Porelli , R. Mirzoyan , R. Wischnewski , A. K. Awad , M. Brueckner

The Cherenkov Telescope Array (CTA) is the future ground-based observatory for gamma-ray astronomy at very high energies. The atmosphere is an integral part of every Cherenkov telescope. Different atmospheric conditions, such as clouds, can…

Context. The presence of clouds during observations with Imaging Atmospheric Cherenkov Telescopes can strongly affect the performance of the instrument due to additional absorption of light and scattering of light beyond the field of view…

Large Array of imaging atmospheric Cherenkov Telescope (LACT) is an array of 32 Cherenkov telescopes with 6-meter diameter mirrors to be constructed at the LHAASO site, aiming to enhance our understanding of ultra-high energy gamma ray…

高能天体物理现象 · 物理学 2025-09-26 Zhipeng Zhang , Ruizhi Yang , Shoushan Zhang

The HEGRA--collaboration is operating a system of imaging atmospheric Cherenkov telescopes to search for sources of TeV-gamma-rays. Air showers are observed in stereoscopic mode with several telescopes simultaneously. To trigger the…

A conceptual design of an advanced Imaging Air Cherenkov Telescope with a 23 m diameter mirror and of 50 tons weight will be presented. A system photon detection efficiency of 15-17%, averaged over 300-600 nm, is aimed at to lower the…

天体物理仪器与方法 · 物理学 2015-05-13 Eckart Lorenz , Daniel Ferenc , M. Victoria Fonseca , Robert Wagner

Imaging atmospheric Cherenkov telescope (IACT) arrays such as VERITAS are used for ground-based very high-energy gamma-ray astronomy. This is accomplished by the detection and analysis of the Cherenkov light produced by gamma-ray-initiated…

天体物理仪器与方法 · 物理学 2019-08-13 Jonathan Tyler

Gamma ray observations from a few hundred MeV up to tens of TeV are a valuable tool for studying particle acceleration and diffusion within our galaxy. Constructing a coherent physical picture of particle accelerators such as supernova…

天体物理仪器与方法 · 物理学 2019-08-16 Alisha Chromey

IceAct is an array of compact Imaging Air Cherenkov Telescopes at the ice surface as part of the IceCube Neutrino Observatory. The telescopes, featuring a camera of 61 silicon photomultipliers and fresnel-lens-based optics, are optimized to…

高能天体物理现象 · 物理学 2025-09-17 Lars Heuermann

Imaging atmospheric Cherenkov telescopes (IACTs) are the main technique for detecting gamma rays with energies between tens of GeV and hundreds of TeV. Amongst them, the High Energy Stereoscopic System (H.E.S.S.) has pioneered the use of…

高能天体物理现象 · 物理学 2026-04-01 Rodrigo Guedes Lang , Tim Unbehaun , Lars Mohrmann , Simon Steinmassl , Jim Hinton , Stefan Funk

The window of TeV Gamma-Ray Astrophysics was opened less than two decades ago, when the Crab Nebula was detected for the first time. After several years of development, the technique used by imaging atmospheric Cherenkov telescopes like…

天体物理学 · 物理学 2008-01-21 M. Ribo

The landscape of ground-based gamma-ray astronomy is drastically changing with the perspective of the Cherenkov Telescope Array (CTA) composed of more than 100 Cherenkov telescopes. For the first time in this energy domain, CTA will be…

天体物理仪器与方法 · 物理学 2017-11-22 Mathieu Servillat , Catherine Boisson , Julien Lefaucheur , Johan Brégeon , Michèle Sanguillon , Jose-Luis Contreras

Cherenkov telescope experiments, such as H.E.S.S., have been very successful in astronomical observations in the very-high-energy (VHE; E $>$ 100 GeV) regime. As an integral part of the detector, such experiments use Earth's atmosphere as a…

天体物理仪器与方法 · 物理学 2015-02-05 J. Hahn , R. de los Reyes , K. Bernlöhr , P. Krüger , Y. T. E. Lo , P. M. Chadwick , M. K. Daniel , C. Deil , H. Gast , K. Kosack , V. Marandon

Iron cosmic rays represent the most abundant heavy nuclei at energies above 1 TeV, with their production thought to be primarily originated by astrophysical sources. Therefore, measuring the iron spectrum provides crucial insights into the…

高能天体物理现象 · 物理学 2025-10-21 M. Molero , S. Mangano , C. Delgado