Add to ORKGThe High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging air-Cherenkov telescopes located in the Khomas Highlands of Namibia (23° 16' 18" S, 16° 30' 1" E, 1800m above sea level). The stereoscopic technique gives H.E.S.S. good angular resolution (99%). These properties coupled with the low energy threshold (~100 GeV)of the detector allows the detection of a 1% Crab flux source in ~25 hours of observation. H.E.S.S. can therefore perform searches for VHE gamma-ray emission from astrophysical objects, such as AGN, with unprecedented sensitivity. The detections by H.E.S.S. of VHE gamma rays from the blazars PKS 2155-304, Mkn 421 and PKS 2005-489 are reported here
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy...
The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging atmospheric-Cherenkov tel...
The High Energy Stereoscopic System (H.E.S.S.), located in the Khomas Highlands of Namibia, is an ar...
The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging air-Cherenkov telescopes ...
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy...
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy...
The H.E.S.S. (High Energy Stereoscopic System) phase I is comprised of four Imaging Atmospheric Cher...
The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging atmospheric Cherenkov tel...
H.E.S.S. (High Energy Stereoscopic System) Phase-I is comprised of four Imaging Atmospheric Cherenko...
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy...
The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging atmospheric-Cherenkov tel...
The High Energy Stereoscopic System (H.E.S.S.), located in the Khomas Highlands of Namibia, is an ar...
The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging air-Cherenkov telescopes ...
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy...
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy...
The H.E.S.S. (High Energy Stereoscopic System) phase I is comprised of four Imaging Atmospheric Cher...
The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging atmospheric Cherenkov tel...
H.E.S.S. (High Energy Stereoscopic System) Phase-I is comprised of four Imaging Atmospheric Cherenko...
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy...
The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging atmospheric-Cherenkov tel...
The High Energy Stereoscopic System (H.E.S.S.), located in the Khomas Highlands of Namibia, is an ar...