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The H.E.S.S. Imaging Atmospheric Cherenkov Telescope Array is currently the most sensitive instrument for Very High Energy (VHE) gamma-ray observations in the energy range of about 0.1-10 TeV. During more than two years of operation with…

Astrophysics · Physics 2007-05-23 Christopher van Eldik

The High Energy Stereoscopic System (H.E.S.S.) is a southern hemisphere array of four Imaging Atmospheric Cherenkov Telescopes observing the sky in the very high energy gamma-ray range (E $>$ 100 GeV). VHE observations are an invaluable…

High Energy Astrophysical Phenomena · Physics 2010-06-25 U. Barres de Almeida

The Earth's atmosphere is an integral part of the detector in ground-based imaging atmospheric Cherenkov telescope (IACT) experiments and has to be taken into account in the calibration. Atmospheric and hardware-related deviations from…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 J. Hahn , R. de los Reyes , K. Bernlöhr , P. Krüger , Y. T. E. Lo , P. M. Chadwick , M. K. Daniel , C. Deil , H. Gast , K. Kosack , V. Marandon

H.E.S.S. is an array of five Imaging Atmospheric Cherenkov Telescopes (IACTs) located 1800 m above sea level in the Khomas Highland of Namibia and is sensitive to very-high-energy (VHE) gamma rays between tens of GeV to tens of TeV. The…

High Energy Astrophysical Phenomena · Physics 2019-08-14 D. Lennarz , P. M. Chadwick , W. Domainko , R. D. Parsons , G. Rowell , P. H. T. Tam

More than fifty extragalactic very high energy (VHE; E>100 GeV) sources have been found using ground-based imaging atmospheric Cherenkov telescopes, about twenty of which have been discovered using the H.E.S.S. (High Energy Stereoscopic…

High Energy Astrophysical Phenomena · Physics 2019-08-14 J. -P. Lenain

The High Energy Stereoscopic System (H.E.S.S.) is an array of five imaging atmospheric Cherenkov telescopes in Namibia observing gamma-rays in the energy range from a few tens of GeV to a few tens of TeV. The Cherenkov signal detected by…

Instrumentation and Methods for Astrophysics · Physics 2019-08-15 Justus Zorn , H. E. S. S. Collaboration

H.E.S.S. is a system of Imaging Atmospheric Cherenkov Telescopes (IACTs) measuring cosmic gamma-rays with very high energies in Namibia. Extending the array with a fifth telescope with a mirror area of 600 m$^2$ leads to a lower energy…

High Energy Astrophysical Phenomena · Physics 2019-08-14 M. Holler , A. Balzer , Y. Becherini , S. Klepser , T. Murach , M. de Naurois , R. Parsons

The H.E.S.S. Cherenkov telescope array, located on the southern hemisphere in Namibia, studies very high energy (VHE; E>100 GeV) gamma-ray emission from astrophysical objects. During its successful operations since 2002 more than 80…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Martin Raue

The High Energy Stereoscopic System (H.E.S.S.), located in the Khomas Highlands of Namibia, is an array of four imaging atmospheric-Cherenkov telescopes designed to detect gamma-rays in the very-high-energy (VHE; E > 100 GeV) domain. It is…

High Energy Astrophysical Phenomena · Physics 2019-08-14 R. C. G. Chaves

The H.E.S.S. instrument consists of four 13 m (H.E.S.S. I) and one 28 m diameter (H.E.S.S. II) Atmospheric Cherenkov Telescopes (ACTs) located in the Khomas Highland in Namibia, 1800 m above sea level. The H.E.S.S. I array began operations…

High Energy Astrophysical Phenomena · Physics 2013-03-13 Berrie Giebels , H. E. S. S. Collaboration

Cherenkov telescope experiments, such as H.E.S.S., have been very successful in astronomical observations in the very-high-energy (VHE; E $>$ 100 GeV) regime. As an integral part of the detector, such experiments use Earth's atmosphere as a…

Instrumentation and Methods for Astrophysics · Physics 2015-02-05 J. Hahn , R. de los Reyes , K. Bernlöhr , P. Krüger , Y. T. E. Lo , P. M. Chadwick , M. K. Daniel , C. Deil , H. Gast , K. Kosack , V. Marandon

The scientific discoveries made by H.E.S.S. during its first year of operation encourage a reexamination of the open problems in high energy astrophysics and of the capabilities of the atmospheric Cherenkov technique, which could be…

Astrophysics · Physics 2007-05-23 V. Vassiliev , S. Fegan

Currently the detection of Very High Energy gamma-rays for astrophysics rely on the measurement of the Extensive Air Showers (EAS) either using Cherenkov detectors or EAS arrays with larger field of views but also larger energy thresholds.…

Instrumentation and Methods for Astrophysics · Physics 2018-05-01 P. Assis , U. Barres de Almeida , A. Blanco , R. Conceição , B. D'Ettoree Piazzoli , A. de Angelis , M. Doro , P. Fonte , L. Lopes , G. Matthiae , M. Pimenta , R. Shellard , B. Tomé

The shell-type supernova remnant RX J0852.0-4622 was detected in 2004 and re-observed between December 2004 and May 2005 with the High Energy Stereoscopic System (H.E.S.S.), an array of four Imaging Cherenkov Telescopes located in Namibia…

Stereoscopic arrays of Imaging Atmospheric Cherenkov Telescopes allow to reconstruct gamma-ray-induced showers in 3 dimensions, which offers several advantages: direct access to the shower parameters in space and straightforward…

Instrumentation and Methods for Astrophysics · Physics 2011-06-08 M. Naumann-Godó , M. Lemoine-Goumard , B. Degrange

A recently proposed novel technique for the detection of cosmic rays with arrays of Imaging Atmospheric Cherenkov Telescopes is applied to data from the High Energy Stereoscopic System (H.E.S.S.). The method relies on the ground based…

Astrophysics · Physics 2008-11-26 HESS Collaboration , F. A. Aharonian

The High Energy Stereoscopic System (H.E.S.S.) is an array of five imaging atmospheric Cherenkov telescopes. Since 2003 it has been operating in the configuration of four 12 m telescopes complemented in 2012 by a much bigger 28 m telescope…

High Energy Astrophysical Phenomena · Physics 2019-08-14 I. Sushch

The High Energy Stereoscopic System (H.E.S.S.) is an array of five imaging atmospheric Cherenkov telescopes (IACTs) to study gamma-ray emission from astrophysical objects in the Southern hemisphere. It is the only hybrid array of IACTs,…

Instrumentation and Methods for Astrophysics · Physics 2023-07-19 S. Ohm , S. Wagner

Astronomy plays a major role in the scientific landscape of Namibia. Because of its excellent sky conditions, Namibia is home to ground-based observatories like the High Energy Spectroscopic System (H.E.S.S.), in operation since 2002.…

The High Energy Stereoscopic System (H.E.S.S.) is an array of imaging atmospheric Cherenkov telescopes (IACTs) located in the Khomas Highland in Namibia. It consists of four 12-m telescopes (CT1-4), which started operations in 2003, and a…