2007/01/26 by F. Aharonian, HESS Collaboration, F. A. Aharonian +98 · 2 citations
Physics and Astronomy · #Astronomy #Astrophysics and Cosmic Phenomena #Atmosphere (unit) #COSMIC cancer database #Cherenkov detector #Cherenkov radiation #Cosmic ray #Dark Matter and Cosmic Phenomena #Detector #Meteorology #Neutrino Physics Research #Optics #Physics #astro-ph
paper · pdf · doi:10.1103/physrevd.75.042004
published as Phys.Rev.D75:042004,2007 · 14 pages, 13 figures, accepted for publication in Phys. Rev. D
arxiv created 2007/01/26 · openalex publication_date 2007/02/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 detection of Cherenkov light emitted from the primary particle prior to its first interaction in the atmosphere. The charge of the primary particle (Z) can be estimated from the intensity of this light, since it is proportional to Z2. Using H.E.S.S. data, an energy spectrum for cosmic-ray iron nuclei in the energy range 13--200 TeV is derived. The reconstructed spectrum is consistent with previous direct measurements and is one of the most precise so far in this energy range.