Alternative methods to finding patterns in HiRes stereo data.

摘要

The arrival direction study of Ultra High Energy Cosmic Rays potentially gives us an insight into their origin. The High Resolution Fly's Eye (HiRes) is a stereo air fluorescence experiment that detects cosmic rays with energies greater than ∼1018 eV. Here we present alternative methods to finding patterns in HiRes stereo data. In addition, we present the correlation of the observed cosmic rays patterns in the HiRes stereo data with some astronomical sources, in particular with BL Lac sources, which are a subclass of active galaxies.