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Imaging atmospheric Cherenkov telescopes (IACTs) detect gamma rays by measuring the Cherenkov light emitted by secondary particles in the air shower when the gamma rays hit the atmosphere. At low energies, the limited amount of Cherenkov…

The Cherenkov Telescope Array (CTA) is the next-generation gamma-ray observatory currently under construction. It will improve over the current generation of imaging atmospheric Cherenkov telescopes (IACTs) by a factor of five to ten in…

天体物理仪器与方法 · 物理学 2023-02-24 Maximilian Nöthe , Karl Kosack , Lukas Nickel , Michele Peresano

The Cherenkov Telescope Array is the future of ground-based gamma-ray astronomy. Its first prototype telescope built on-site, the Large Size Telescope 1, is currently under commissioning and taking its first scientific data. In this paper,…

天体物理仪器与方法 · 物理学 2022-03-10 Mikaël Jacquemont , Thomas Vuillaume , Alexandre Benoit , Gilles Maurin , Patrick Lambert , Giovanni Lamanna

High energy cosmic-rays generate air showers when they enter Earth's atmosphere. Ground-based gamma-ray astronomy is possible using either direct detection of shower particles at mountain altitudes, or with arrays of imaging air-Cherenkov…

天体物理仪器与方法 · 物理学 2025-02-27 Clara Escañuela Nieves , Felix Werner , Jim Hinton

The Cherenkov Telescope Array (CTA) is the future observatory for ground-based imaging atmospheric Cherenkov telescopes. Each telescope will provide a snapshot of gamma-ray induced particle showers by capturing the induced Cherenkov…

天体物理仪器与方法 · 物理学 2023-02-24 J. Aschersleben , M. Vecchi , M. H. F. Wilkinson , R. F. Peletier

The Imaging Atmospheric Cherenkov Technique (IACT) is unusual in astronomy as the atmosphere actually forms an intrinsic part of the detector system, with telescopes indirectly detecting very high energy particles by the generation and…

天体物理仪器与方法 · 物理学 2019-08-14 M. K. Daniel

The Cherenkov Telescope Array (CTA) will be the next-generation observatory in the field of very-high-energy (20 GeV to 300 TeV) gamma-ray astroparticle physics. The traditional approach to data analysis in this field is to apply quality…

天体物理仪器与方法 · 物理学 2023-09-21 Juan Bernete , Orel Gueta , Tarek Hassan , Max Linhoff , Gernot Maier , Atreyee Sinha

The Cherenkov Telescope Array Observatory (CTAO) will be the next-generation major ground-based gamma-ray observatory. It will be made up of two large arrays of imaging atmospheric Cherenkov telescopes (IACTs), with one site in the Northern…

高能天体物理现象 · 物理学 2026-02-03 Francesco Schiavone

The High Energy Stereoscopic System (H.E.S.S.) is an array of five Imaging Atmospheric Cherenkov Telescopes (IACTs) designed to detect cosmogenic gamma-rays with very high energies. Originally consisting of just four identical IACTs (CT1-4)…

天体物理仪器与方法 · 物理学 2019-08-14 M. Holler , A. Balzer , R. Chalmé-Calvet , M. de Naurois , D. Zaborov

Very High Energy (VHE) gamma rays and charged cosmic rays (CCRs) provide an observational window into the acceleration mechanisms of extreme astrophysical environments. One of the major challenges at Imaging Air Cherenkov Telescopes (IACTs)…

天体物理仪器与方法 · 物理学 2023-05-03 Songshaptak De , Writasree Maitra , Vikram Rentala , Arun M. Thalapillil

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…

高能天体物理现象 · 物理学 2024-09-23 Zhipeng Zhang , Ruizhi Yang , Shoushan Zhang , Liqiao Yin , Jiali Liu , Yudong Wang , Lingling Ma , Zhen Cao

The planned Cherenkov Telescope Array (CTA) is a future observatory for very-high-energy (VHE) gamma-ray astronomy composed of one site per hemisphere. It aims at 10 times better sensitivity, a better angular resolution and wider energy…

天体物理仪器与方法 · 物理学 2019-08-14 Y. Becherini , B. Khélifi , S. Pita , M. Punch

The Cherenkov Telescope Array Observatory (CTAO) is the next-generation observatory for high energy \gamma-ray astronomy with unprecedented sensitivity and accuracy. Accurate estimation and mitigation of systematic uncertainties are crucial…

天体物理仪器与方法 · 物理学 2026-03-04 G. Voutsinas , M. Dalchenko , M. Gaug , O. Gueta , T. Montaruli , R. Zanin

For reliable event reconstruction of Imaging Atmospheric Cherenkov Telescopes (IACTs), calibration of the optical throughput efficiency is required. Within current facilities, this is achieved through the use of ring shaped images generated…

天体物理仪器与方法 · 物理学 2015-11-25 A. M. W. Mitchell , R. D. Parsons , W. Hofmann , K. Bernloehr

Ground based gamma-ray observations with Imaging Atmospheric Cherenkov Telescopes (IACTs) play a significant role in the discovery of very high energy (E > 100 GeV) gamma-ray emitters. The analysis of IACT data demands a highly efficient…

We present a high-performance event reconstruction algorithm: an Image Pixel-wise fit for Atmospheric Cherenkov Telescopes (ImPACT). The reconstruction algorithm is based around the likelihood fitting of camera pixel amplitudes to an…

天体物理仪器与方法 · 物理学 2014-05-20 R. D. Parsons , J. A. Hinton

The Cherenkov Telescope Array (CTA) will be the next-generation observatory in the field of very-high-energy (20 GeV to 300 TeV) gamma-ray astroparticle physics. Classically, data analysis in the field maximizes sensitivity by applying…

天体物理仪器与方法 · 物理学 2021-08-24 T. Hassan , O. Gueta , G. Maier , M. Nöthe , M. Peresano , I. Vovk

Extensive air showers created by high-energy particles interacting with the Earth atmosphere can be detected using imaging atmospheric Cherenkov telescopes (IACTs). The IACT images can be analyzed to distinguish between the events caused by…

天体物理仪器与方法 · 物理学 2022-09-21 Stanislav Polyakov , Andrey Demichev , Alexander Kryukov , Evgeny Postnikov

Deep convolutional neural networks (DCNs) are a promising machine learning technique to reconstruct events recorded by imaging atmospheric Cherenkov telescopes (IACTs), but require optimization to reach full performance. One of the most…

天体物理仪器与方法 · 物理学 2019-12-23 D. Nieto , A. Brill , Q. Feng , M. Jacquemont , B. Kim , T. Miener , T. Vuillaume

The Cherenkov Telescope Array Observatory (CTAO) is a next-generation ground-based gamma-ray observatory that will study the universe at very high energy using atmospheric Cherenkov light. CTAO will comprise over 67 telescopes of three…

天体物理仪器与方法 · 物理学 2023-10-04 Federica Bradascio