Search for point-like sources of cosmic rays with energies above 1018.5 eV in the HiRes-I monocular data set |
| |
Affiliation: | 1. Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, 723104, West Bengal, India;2. Department of Chemistry, University of Hail, Hail, Saudi Arabia;3. Shiv Nadar University, NH - 91, Tehsil Dadri, Gautam Buddha Nagar, Uttar Pradesh, 201314 India |
| |
Abstract: | We report the results of a search for point-like deviations from isotropy in the arrival directions of ultra-high energy cosmic rays in the northern hemisphere. In the monocular data set collected by the High-Resolution Fly’s Eye, consisting of 1525 events with energy exceeding 1018.5 eV, we find no evidence for point-like excesses. We place a 90% c.l. upper limit of 0.8 hadronic cosmic rays/km2 yr on the flux from such sources for the northern hemisphere and place tighter limits as a function of position in the sky. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|