295 articles – 2208 Notices  [english version]
 HAL : in2p3-00585107, version 1
 arXiv : 1008.5119
 Physical Review D 82 (2010) 092003
 Searches for Cosmic-Ray Electron Anisotropies with the Fermi Large Area Telescope
 Fermi-LAT Collaboration(s)
 (18/11/2010)
 The Large Area Telescope on board the \textit{Fermi} satellite (\textit{Fermi}-LAT) detected more than 1.6 million cosmic-ray electrons/positrons with energies above 60 GeV during its first year of operation. The arrival directions of these events were searched for anisotropies of angular scale extending from $\sim$ 10 $^\circ$ up to 90$^\circ$, and of minimum energy extending from 60 GeV up to 480 GeV. Two independent techniques were used to search for anisotropies, both resulting in null results. Upper limits on the degree of the anisotropy were set that depended on the analyzed energy range and on the anisotropy's angular scale. The upper limits for a dipole anisotropy ranged from $\sim0.5%$ to $\sim10%$.
 Thème(s) : Physique/Astrophysique/Phénomènes cosmiques de haute energiePlanète et Univers/Astrophysique/Phénomènes cosmiques de haute energie
 Lien vers le texte intégral : http://fr.arXiv.org/abs/1008.5119
 in2p3-00585107, version 1 http://hal.in2p3.fr/in2p3-00585107 oai:hal.in2p3.fr:in2p3-00585107 Contributeur : Virginie Mas <> Déposé pour le compte de : David Smith <> Soumis le : Lundi 11 Avril 2011, 17:08:54 Dernière modification le : Mardi 12 Avril 2011, 11:14:16