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After nearly a decade of operation, the three major arrays of atmospheric Cherenkov telescopes have revolutionized our view of the Very High Energy Universe, unveiling more than 100 sources of various types. MAGIC, consisting of two 17 m…

High Energy Astrophysical Phenomena · Physics 2015-10-05 M. de Naurois

The next-generation ground-based gamma-ray Cherenkov Telescope Array Observatory (CTAO) will consist of imaging atmospheric Cherenkov telescopes (IACTs) of three different sizes distributed in two sites. The Large-Sized Telescopes will…

High Energy Astrophysical Phenomena · Physics 2023-09-21 Daniel Morcuende , Rubén López-Coto , Abelardo Moralejo , Seiya Nozaki , Thomas Vuillaume

The VERITAS array of imaging atmospheric Cherenkov telescopes has collected nearly 6000 hours of observations of active galactic nuclei (AGNs). It has detected 39 very-high-energy (VHE, >100 GeV) AGNs at redshifts up to z = 0.9, of which 24…

High Energy Astrophysical Phenomena · Physics 2019-08-09 Orel Gueta

The Cherenkov Telescope Array (CTA) will be the next-generation gamma-ray observatory, investigating gamma-ray and cosmic ray astrophysics at energies from 20 GeV to more than 300 TeV. The observatory, consisting of large arrays of imaging…

High Energy Astrophysical Phenomena · Physics 2018-01-22 The CTA Consortium

The discovery of the high-frequency-peaked BL Lac object 1ES 0806+524 (z=0.138) as a source of very-high-energy (VHE, E>100 GeV) gamma-ray photons was announced in 2008 by the VERITAS Collaboration, at a level of 1.8% of the Crab Nebula…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Matteo Cerruti

On 2017 September 22, the IceCube Neutrino Observatory reported the detection of the high-energy neutrino event \icnu, of potential astrophysical origin. It was soon determined that the neutrino direction was consistent with the location of…

The Cherenkov Telescope Array (CTA) will be the next generation very-high-energy gamma-ray observatory. CTA is expected to provide substantial improvement in accuracy and sensitivity with respect to existing instruments thanks to a tenfold…

Instrumentation and Methods for Astrophysics · Physics 2021-08-23 Orel Gueta

In the cosmological paradigm, cold dark matter dominates the mass content of the Universe and is present at every scale. Candidates for dark mater include many extensions of the standard model, with a Weakly Interacting Massive Particle…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Matthieu Vivier

The Cherenkov Telescope Array (CTA) is the next generation very high energy gamma-ray observatory covering the 20 GeV - 300 TeV energy range with unprecedented sensitivity, angular and energy resolution. With a site in each hemisphere, CTA…

The Cherenkov Telescope Array (CTA) is the next generation high-energy gamma-ray observatory. It will improve the sensitivity of current instruments up to an order of magnitude, while providing energy coverage for photons from 20 GeV to at…

High Energy Astrophysical Phenomena · Physics 2019-07-18 Fabian Schüssler

The Cherenkov Telescope Array (CTA) represents the next generation of very high-energy gamma-ray observatory, which will provide broad coverage of gamma rays from 20 GeV to 300 TeV with unprecedented sensitivity. CTA will employ three…

Instrumentation and Methods for Astrophysics · Physics 2019-07-23 S. Sakurai , D. Depaoli , R. López-Coto

The Crab Nebula is the brightest source in the very-high-energy (VHE) gamma-ray sky and one of the best studied non-thermal objects. The dominant VHE emission mechanism is believed to be inverse Compton scattering of low energy photons on…

High Energy Astrophysical Phenomena · Physics 2026-03-31 Kevin Meagher

In recent years, ground-based very-high-energy (VHE; E>100 GeV) gamma-ray astronomy has experienced a major breakthrough with the impressive astrophysical results obtained mainly by the current generation experiments like H.E.S.S., MAGIC,…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 R. M. Wagner , E. J. Lindfors , A. Sillanpää , S. Wagner

The MINiature Exoplanet Radial Velocity Array (MINERVA) is a US-based observational facility dedicated to the discovery and characterization of exoplanets around a nearby sample of bright stars. MINERVA employs a robotic array of four 0.7 m…

M87 is a nearby radio galaxy and because of its misaligned jet, it is possible to correlate detailed spatially-resolved emission regions in the radio, optical to X-ray waveband with unresolved but contemporaneous flux measurements in the…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-13 C. M. Hui

The upcoming Cherenkov Telescope Array (CTA) ground-based gamma-ray observatory will open up our view of the very high energy Universe, offering an improvement in sensitivity of 5-10 times that of previous experiments. NectarCAM is one of…

Instrumentation and Methods for Astrophysics · Physics 2021-08-03 Thomas Armstrong , Heide Costantini , Jean-François Glicenstein , Jean-Philippe Lenain , Ullrich Schwanke , Thomas Tavernier

A clue to finding the long-sought sources of cosmic rays is the recent observation of an astrophysical flux of high-energy neutrinos by the IceCube detector, since these possibly originate in hadronic interactions at cosmic-ray…

High Energy Astrophysical Phenomena · Physics 2019-08-14 M. Santander

The Cherenkov Telescope Array (CTA) is a project for a next-generation observatory for very high energy (GeV-TeV) ground-based gamma-ray astronomy, currently in its design phase, and foreseen to be operative a few years from now. Several…