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The Cherenkov Telescope Array (CTA) is the next generation observatory for the study of very high-energy gamma rays from about 20 GeV up to 300 TeV. Thanks to the large effective area and field of view, the CTA observatory will be…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Andrea Zoli , Andrea Bulgarelli , Adriano De Rosa , Alessio Aboudan , Valentina Fioretti , Giovanni De Cesare , Ramin Marx

In gamma ray astronomy, the energy range from sub-100GeV to TeV is crucial due to where there is a gap between space experiments and ground-based ones. In addition, observations in this energy range are expected to provide more details…

Instrumentation and Methods for Astrophysics · Physics 2015-09-08 T. L. Chen , Z. Wang , Q. Gao , C. Liu , Y. Zhang , H. B. Hu , H. Cai , X. Y. Zhang , H. Y. Yang , Y. Shi , Danzengluobu , M. Y. Liu , Z. Y. Feng , Y. L. Feng , Y. Q. Guo , Q. B. Gou , Z. Tian , Y. X. Xiao

The Cherenkov Telescope Array (CTA) will be the world's first open observatory for very high energy gamma-rays. Around a hundred telescopes of different sizes will be used to detect the Cherenkov light that results from gamma-ray induced…

Instrumentation and Methods for Astrophysics · Physics 2019-08-17 A. Zech , J. -P. Amans , S. Blake , C. Boisson , C. Costille , F. De-Frondat , J. -L. Dournaux , D. Dumas , G. Fasola , T. Greenshaw , O. Hervet , J. -M. Huet , P. Laporte , C. Rulten , D. Savoie , F. Sayede , J. Schmoll , H. Sol

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 is a world-wide project for a new generation of ground-based Cherenkov telescopes of the Imaging class with the aim of exploring the highest energy region of the electromagnetic spectrum. With two planned…

Imaging Atmospheric Cherenkov Telescopes (IACTs) are ground-based instruments devoted to the study of very high energy gamma-rays coming from space. The detection technique consists of observing images created by the Cherenkov light emitted…

The Cherenkov Telescope Array (CTA) is the next generation ground-based observatory for $\gamma$-ray astronomy at energies above 30 GeV. Thanks to its unique capabilities, CTA observations will address a plethora of open questions in…

High Energy Astrophysical Phenomena · Physics 2019-07-19 H. Martínez-Huerta , J. Biteau , J. Lefaucheur , M. Meyer , S. Pita , I. Vovk

Galactic diffuse TeV gamma-ray emission is produced by the interaction of high-energy cosmic-ray particles with matter and radiation in our Galaxy. The measurement of Galactic diffuse TeV gamma-ray emission would provide strong constraints…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Hao Zhou , Chang Dong Rho , Giacomo Vianello

The TeV extragalactic sky is dominated by blazars, radio-loud active galactic nuclei with a relativistic jet pointing towards the Earth. Blazars show variability that can be quite exceptional both in terms of flux (orders of magnitude of…

High Energy Astrophysical Phenomena · Physics 2023-09-19 M. Cerruti , J. Finke , G. Grolleron , J. P. Lenain , T. Hovatta , M. Joshi , E. Lindfors , P. Morris , M. Petropoulou , P. Romano , S. Vercellone , M. Zacharias

The Cherenkov Telescope Array (CTA), currently in its Preparatory Phase, will be the first open observatory for very high energy gamma-rays from galactic and extragalactic sources. The international consortium behind CTA is preparing the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 A. Zech

The sensitivity of imaging atmospheric Cherenkov telescopes (IACTs) in TeV gamma-ray observations reachs its maximum at small zenith angles (< 30 degree) which provide the minimum attainable energy threshold of an instrument. However, for a…

Astrophysics · Physics 2008-11-26 A. Konopelko , F. Aharonian , M. Hemberger , W. Hofmann , J. Kettler , G. Puehlhofer , H. J. Voelk

Astrophysical sources of TeV gamma rays are usually established by Cherenkov telescope observations. These counting type instruments have a field of view of few degrees in diameter and record large numbers of particle air showers via their…

Instrumentation and Methods for Astrophysics · Physics 2012-08-08 Stefan Klepser

The Cherenkov Telescope Array (CTA) is a planned observatory for very-high energy gamma-ray astronomy. It will consist of several tens of telescopes of different sizes, with a total mirror area of up to 10,000 square meters. Most mirrors of…

Very high energy (VHE, i.e. $\gtrsim 10$ GeV) photons from Gamma-Ray Bursts (GRBs), as high as 90 GeV in rest frame energy, have been detected by the $Fermi$ Large Area Telescope (LAT). This provides hope for a high statistics GRB detection…

High Energy Astrophysical Phenomena · Physics 2011-09-27 Aurelien Bouvier , Rudy Gilmore , Valerie Connaughton , Nepomuk Otte , Joel R. Primack , David A. Williams

The High Altitude Water Cherenkov (HAWC) Observatory is a ground-based TeV gamma-ray observatory in the state of Puebla, Mexico at an altitude of 4100 m. Its 22,000 m$^2$ instrumented area, wide field of view ($\sim$2 sr), and >95% uptime…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Joshua Wood

Ground-based gamma-ray astronomy experienced a major boost with the advent of the present generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) in the past decade. Photons of energies >~ 0.1 TeV are a very useful tool in the study…

High Energy Astrophysical Phenomena · Physics 2013-06-07 Abelardo Moralejo Olaizola

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

Recently, ground-based very high-energy (VHE) gamma-ray astronomy achieved a remarkable advancement in the development of the observational technique for the registration and study of gamma-ray emission above 100 GeV. Construction of…

Astrophysics · Physics 2007-08-30 A. Konopelko , J. P. Finley , G. Urbanski

In the framework of the next generation of Cherenkov telescopes, the Cherenkov Telescope Array (CTA), NectarCAM is a camera designed for the medium size telescopes covering the central energy range of 100 GeV to 30 TeV. NectarCAM will be…