159 articles – 2000 Notices  [english version]
 HAL : in2p3-00134805, version 1
 arXiv : astro-ph/0701766
 Physical Review D 75 (2007) 042004
 First ground based measurement of atmospheric Cherenkov light from cosmic rays
 HESS Collaboration(s)
 (2007)
 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 Z$^2$. 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.
 équipe(s) de recherche : APC - AHE
 Thème(s) : Physique/Astrophysique/Cosmologie et astrophysique extra-galactiquePlanète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactiquePlanète et Univers/Astrophysique
 Lien vers le texte intégral : http://fr.arXiv.org/abs/astro-ph/0701766
 in2p3-00134805, version 1 http://hal.in2p3.fr/in2p3-00134805 oai:hal.in2p3.fr:in2p3-00134805 Contributeur : Nicole Berger <> Soumis le : Lundi 5 Mars 2007, 15:24:44 Dernière modification le : Mercredi 4 Juillet 2012, 15:04:56