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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 (CTA) will be the next high-energy gamma-ray observatory. Selection of the sites, one in each hemisphere, is not obvious since several factors have to be taken into account. Among them, and probably the most…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Stephane Vincent

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…

Instrumentation and Methods for Astrophysics · Physics 2023-09-21 Juan Bernete , Orel Gueta , Tarek Hassan , Max Linhoff , Gernot Maier , Atreyee Sinha

The Cherenkov Telescope Array (CTA) is planned to serve as a ground-based observatory for (very-)high-energy gamma-ray astronomy, open to a wide astrophysics community, providing a deep insight into the non-thermal high-energy universe. It…

High Energy Astrophysical Phenomena · Physics 2019-08-15 M. Renaud

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

Imaging Air Cherenkov Telescopes (IACTs) are essential to ground-based observations of gamma rays in the GeV to TeV regime. One particular challenge of ground-based gamma-ray astronomy is an effective rejection of the hadronic background.…

Instrumentation and Methods for Astrophysics · Physics 2023-11-08 Jonas Glombitza , Vikas Joshi , Benedetta Bruno , Stefan Funk

The Cherenkov Telescope Array (CTA) is an international initiative to build the next generation ground-based very-high-energy gamma-ray observatory. Full sky coverage will be assured by two arrays, one located on each of the northern and…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Maria Concetta Maccarone , Dan Parsons , Markus Gaug , Raquel de los Reyes

The Cherenkov Telescope Array (CTA) observatory will probe the non-thermal universe above 20 GeV up to several hundreds of TeV with a significant improvement in sensitivity and angular resolution compared to current experiments. Its…

High Energy Astrophysical Phenomena · Physics 2017-10-25 Julien Lefaucheur , Catherine Boisson , Zeljka Bosnjak , Matteo Cerruti , Christoph Deil , Jean-Philippe Lenain , Santiago Pita , Andreas Zech

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

Imaging atmospheric Cherenkov telescopes (IACTs) are sensitive to rare gamma-ray photons, buried in the background of charged cosmic-ray (CR) particles, the flux of which is several orders of magnitude greater. The ability to separate gamma…

Instrumentation and Methods for Astrophysics · Physics 2017-06-14 Qi Feng , Tony T. Y. Lin

Several projects planned or proposed can significantly expand our knowledge of the high-energy Universe in gamma rays. Construction of the Cherenkov telescope array CTA is started, and other detectors are planned which will use the…

Instrumentation and Methods for Astrophysics · Physics 2016-10-27 Alesandro De Angelis

With their wide field of view and high duty cycle, water-Cherenkov-based observatories are integral to studying the very high-energy gamma-ray sky. For gamma-ray observations, precise event reconstruction and highly effective background…

Instrumentation and Methods for Astrophysics · Physics 2025-03-21 Jonas Glombitza , Martin Schneider , Franziska Leitl , Stefan Funk , Christopher van Eldik

The Cherenkov Telescope Array (CTA) is the next generation ground-based observatory for gamma-ray astronomy at very-high energies. It will be capable of detecting gamma rays in the energy range from 20 GeV to more than 300 TeV with…

Instrumentation and Methods for Astrophysics · Physics 2019-07-22 Daniel Mazin

The Cherenkov Telescope Array (CTA) will be the major global observatory for VHE gamma-ray astronomy over the next decade and beyond. It will be an explorer of the extreme universe, with a broad scientific potential: from understanding the…

High Energy Astrophysical Phenomena · Physics 2019-07-22 Ulisses Barres de Almeida

The Cherenkov Telescopes Array (CTA) is planned as the future instrument for very-high-energy (VHE) gamma-ray astronomy with a wide energy range of four orders of magnitude and an improvement in sensitivity compared to current instruments…

The Cherenkov Telescope Array (CTA) will be able to perform unprecedented observations of the transient very high-energy sky. An on-line science alert generation (SAG) pipeline, with a required 30 second latency, will allow the discovery or…

Instrumentation and Methods for Astrophysics · Physics 2019-07-19 Valentina Fioretti , Deivid Ribeiro , Thomas B. Humensky , Andrea Bulgarelli , Gernot Maier , Abelardo Moralejo , Cosimo Nigro

The Cherenkov Telescope Array (CTA) is a next-generation ground-based observatory for g -rays with energies between some ten GeV and a few hundred TeV. CTA is currently in the advanced design phase and will consist of arrays with different…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 M. Shayduk , S. Vorobiov , U. Schwanke , R. Wischnewski

We compared convolutional neural networks to the classical boosted decision trees for the separation of atmospheric particle showers generated by gamma rays from the particle-induced background. We conduct the comparison of the two…

Instrumentation and Methods for Astrophysics · Physics 2020-08-26 Etienne Lyard , Roland Walter , Vitalii Sliusar , Nicolas Produit

The Cherenkov Telescope Array (CTA) will be the next generation ground based observatory in very high energy gamma ray astronomy. The facility will achieve a wide energy coverage, starting from a threshold of a few tens of GeV up to…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 M. K. Daniel , M. Gaug , P. Majumdar