The Cherenkov Telescope Array or CTA is a multinational, world-wide project to build a new generation ground-based gamma-ray instrument in the energy range extending from some tens of GeV to above 100 TeV. It is proposed as an open observatory and will consist of two arrays of Imaging Atmospheric Cherenkov telescopes (IACTs), a first array at the Northern Hemisphere with emphasis on the study of extragalactic objects at the lowest possible energies, and a second array at the Southern Hemisphere, which is to cover the full energy range and concentrate on galactic sources. The physics program of CTA goes beyond high energy astrophysics into cosmology and fundamental physics.
CTA intends to improve the flux sensitivity of the current generation of IACTs such as MAGIC, HESS, and VERITAS by an order of magnitude. It will foreseeably consist of tens of IACTs of different mirror sizes. Production of the first telescope prototypes started in 2013. CTA is designed and will be built by an international collaboration of scientists, with a strong involvement of European institutions. The project is on the road-map of the European Strategy Forum on Research Infrastructures (ESFRI), the European Astroparticle Physics network ASPERA and the European Astrophysics network ASTRONET.
An astronomical interferometer is an array of telescopes or mirror segments acting together to probe structures with higher resolution by means of interferometry. The benefit of the interferometer is that the angular resolution of the instrument is nearly that of a telescope with the same aperture as a single large instrument encompassing all of the individual photon-collecting sub-components. The main drawback is that it does not collect as many photons as a large instrument of that size. Thus it is mainly useful for fine resolution of the more luminous astronomical objects, such as close binary stars. Another drawback is that the maximum angular size of a detectable emission source is limited by the minimum gap between detectors in the array.
Astronomical interferometers are widely used for optical astronomy, infrared astronomy, submillimetre astronomy and radio astronomy. Aperture synthesis can be used to perform high-resolution imaging using astronomical interferometers. Very Long Baseline Interferometry uses a technique related to the closure phase to combine telescopes separated by thousands of kilometers to form a radio interferometer with the resolution which would be given by a single dish which was thousands of kilometers in diameter. At optical wavelengths, aperture synthesis allows the atmospheric seeing resolution limit to be overcome, allowing the angular resolution to reach the diffraction limit of the array.
This included NASA’s Fermi-LAT, HubbleSpaceTelescope, NuSTAR, and the Chandra and Swift telescopes, along with three of the world’s largest imaging atmospheric Cherenkov telescope arrays.
It consists of an array of 5,216 electromagnetic particle detectors and 1,188 muon detectors distributed over 1 km2, a water Cherenkov detector array covering 78,000 m2 and an array of 18 wide-field-of-view Cherenkov telescopes ... More information ... DOI.
... which comprises 5,216 electromagnetic particle detectors and 1,188 muon detectors; the 78,000 m2 WaterCherenkovDetectorArray (WCDA); and the 18 Wide-field-of-view Cherenkov Telescope Array (WFCTA).
The Large High-Altitude Air Shower Observatory (LHAASO) is a composite array made up of 5216 electromagnetic particle detectors, 1188 muon detectors, a 78,000-square-meter water Cherenkov detector array, and 18 wide-angle Cherenkov telescopes.
26 ... Dr ... Prof ... It is a composite array made up of a one-square-kilometer ground array of 5216 electromagnetic particle detectors and 1188 muon detectors, a 78,000-square-meter water Cherenkov detector array, and 18 wide-angle Cherenkov telescopes ... DOI.
With these results, OP 313 becomes the most distant active galactic nuclei (AGN) ever detected by a Cherenkov telescope, further showcasing the LST... Provided by Cherenkov TelescopeArray Observatory.
The group of scientists tasked with advising the U.S ...Rubin Observatory, the CherenkovTelescopeArray, and the development of next-generation ground-based telescopes to observe the cosmic microwave background (CMB) ... Provided by Universe Today ... ....
The observatory is comprised of 5,216 electromagnetic particle detectors, 1,188 muon detectors, a 78,000-square-meter Cherenkov water detector array and 18 wide-field-of-view Cherenkov telescopes.
Once the globally distributed CherenkovTelescopeArray (CTA) is complete, it will view the gamma-ray sky with ten times more sensitivity than what’s currently possible ... The first Cherenkov telescopes were developed in the 1960s.
... Southern Observatory’s (ESO’s) Very Large Telescope (VLT) ... Also at Paranal ESO will host and operate the Cherenkov Telescope ArraySouth, the world’s largest and most sensitive gamma-ray observatory.
