Search for Point Sources of Ultra–High‐Energy Cosmic Rays above 4.0 x 1019eV Using a Maximum Likelihood Ratio Test

2004/12/23 by R. U. Abbasi, s Eye Collaboration, T. Abu‐Zayyad +61 · 5 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #astro-ph

paper · pdf · doi:10.1086/428570

published as Astrophys.J.623:164-170,2005 · 7 pages, 7 figures. Accepted for publication in The Astrophysical Journal

arxiv created 2004/12/23 · openalex publication_date 2005/04/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

We present the results of a search for cosmic-ray point sources at energies in excess of 4.0 × 10 19 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.

Citations

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

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