English
Related papers

Related papers: Statistical Tools for Imaging Atmospheric Cherenko…

200 papers

Imaging atmospheric Cherenkov telescopes (IACTs) used for ground-based gamma-ray astronomy at TeV energies use reflectors with areas on the order of 100m$^2$ as their primary optic. These tessellated reflectors comprise hundreds of mirror…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 A. McCann , D. Hanna , J. Kildea , M. McCutcheon

Context. The increase in sensitivity of Imaging Atmospheric Cherenkov Telescopes (IACTs) has lead to numerous detections of extended $\gamma$-ray sources at TeV energies, sometimes of sizes comparable to the instrument's field of view…

Instrumentation and Methods for Astrophysics · Physics 2018-11-07 Ie. Vovk , M. Strzys , C. Fruck

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

Ground-based atmospheric Cherenkov telescopes are proven to be effective instruments for observations of very high energy (VHE) gamma-radiation from celestial objects. For effective use of such technique one needs detailed Monte Carlo…

Astrophysics · Physics 2009-10-31 A. Konopelko , A. Plyasheshnikov

The HEGRA system of 4 Imaging Atmospheric Cherenkov Telescopes (IACTs) has been used since March 1997 for a comprehensive study of the gamma-ray emission from the BL Lac object Mkn 501 in the energy range above 500 GeV. Taking advantage of…

Astrophysics · Physics 2019-08-15 H. Krawczynski

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)…

Instrumentation and Methods for Astrophysics · Physics 2023-05-03 Songshaptak De , Writasree Maitra , Vikram Rentala , Arun M. Thalapillil

Atmospheric Cherenkov telescopes rely on the Earth's atmosphere as part of the detector. The presence of clouds affects observations and can introduce biases if not corrected for. Correction methods typically require an atmospheric profile,…

Instrumentation and Methods for Astrophysics · Physics 2024-04-03 Julian Sitarek , Mario Pecimotika , Natalia Żywucka , Dorota Sobczyńska , Abelardo Moralejo , Dario Hrupec

The Cherenkov Telescope Array (CTA) is the next generation facility of Imaging Atmospheric Cherenkov Telescopes. It will reach unprecedented sensitivity and energy resolution in very-high-energy gamma-ray astronomy. CTA will detect…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 M. Doro , M. Daniel , R. de los Reyes , M. Gaug , M. C. Maccarone

Geiger-mode Avalanche Photodiodes (G-APD) bear the potential to significantly improve the sensitivity of Imaging Air Cherenkov Telescopes (IACT). We are currently building the First G-APD Cherenkov Telescope (FACT) by refurbishing an old…

Very high energy (VHE; E > 100 GeV) gamma-rays provide a unique probe into the non-thermal processes in the universe. The ground-based Imaging Air Cherenkov telescopes (IACTs) for detecting VHE gamma-rays have been perfected, so a…

High Energy Astrophysical Phenomena · Physics 2019-08-15 Massimo Persic

In this paper we have introduced a novel method for gamma hadron separation in Imaging Atmospheric Cherenkov Telescopes (IACT) using Quantum Machine Learning. IACTs captures images of Extensive Air Showers (EAS) produced from very high…

Instrumentation and Methods for Astrophysics · Physics 2022-11-01 Jashwanth S , Sudeep Ghosh , Neha Shah , Kavitha Yogaraj , Ankhi Roy

The IceCube Neutrino Observatory has revealed the existence of sources of high-energy astrophysical neutrinos. However, identification of the sources is challenging because astrophysical neutrinos are difficult to separate from the…

Instrumentation and Methods for Astrophysics · Physics 2020-01-09 D. Rysewyk , D. Lennarz , T. DeYoung , J. Auffenberg , M. Schaufel , T. Bretz , C. Wiebusch , M. U. Nisa

This paper investigates the potential to detect tau neutrinos in the energy range of 1-1000 PeV searching for very inclined showers with imaging Cherenkov telescopes. A neutrino induced tau lepton escaping from the Earth may decay and…

Instrumentation and Methods for Astrophysics · Physics 2016-06-23 Dariusz Gora , Elisa Bernardini

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…

Instrumentation and Methods for Astrophysics · Physics 2018-11-07 Idan Shilon , Manuel Kraus , Matthias Büchele , Kathrin Egberts , Tobias Fischer , Tim Lukas Holch , Thomas Lohse , Ullrich Schwanke , Constantin Steppa , Stefan Funk

The Cherenkov Telescope Array Observatory (CTAO), a next-generation ground-based gamma-ray observatory, will be composed of two arrays of multiple imaging atmospheric Cherenkov telescopes (IACTs) located in both the Northern and Southern…

High Energy Astrophysical Phenomena · Physics 2025-09-19 T. Miener , I. Viale , B. Lacave , A. Cerviño

This paper is concerned with the performance optimisation of an stereoscopic array of imaging atmospheric Cherenkov telescopes (IACTs) as a function of their positioning on the ground. In this first work we are concerned primarily with the…

Instrumentation and Methods for Astrophysics · Physics 2019-07-30 Bruno Fontes Souto , Ulisses Barres de Almeida

The high energy end of gamma-ray source spectra might provide important clues regarding the nature of the processes involved in gamma-ray emission. Several galactic sources with hard emission spectra extending up to more than 30TeV have…

Astrophysics · Physics 2008-11-26 Pierre Colin , Stephan LeBohec , Jamie Holder

A new background rejection strategy for gamma-ray astrophysics with stereoscopic Imaging Atmospheric Cherenkov Telescopes (IACT), based on Monte Carlo (MC) simulations and real background data from the H.E.S.S. [High Energy Stereoscopic…

High Energy Astrophysical Phenomena · Physics 2011-04-29 Yvonne Becherini , Arache Djannati-Ataï , Vincent Marandon , Michael Punch , Santiago Pita

Recent developments in machine learning (ML) techniques present a promising new analysis method for high-speed imaging in astroparticle physics experiments, for example with imaging atmospheric Cherenkov telescopes (IACTs). In particular,…

Instrumentation and Methods for Astrophysics · Physics 2019-07-23 Samuel Spencer , Thomas Armstrong , Jason Watson , Garret Cotter

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