Abstract
We present the results of a search for cosmic-ray point sources at energies in excess of 4.0 × 1019 eV in the combined data sets recorded by the Akeno Giant Air Shower Array and High Resolution Fly's Eye stereo experiments. The analysis is based on a maximum likelihood ratio test using the probability density function for each event rather than requiring an a priori choice of a fixed angular bin size. No statistically significant clustering of events consistent with a point source is found.
Original language | English (US) |
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Pages (from-to) | 164-170 |
Number of pages | 7 |
Journal | Astrophysical Journal |
Volume | 623 |
Issue number | 1 I |
DOIs | |
State | Published - Apr 10 2005 |
Keywords
- Acceleration of particles
- Cosmic rays
- Large-scale structure of universe
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science