Anisotropy Studies of Ultra-High Energy Cosmic Rays Using Monocular Data Collected by the High-Resolution Fly's Eye (HiRes)

Details Anisotropy Studies of Ultra-High Energy Cosmic Rays Using Monocular Data Collected by the High-Resolution Fly's Eye (HiRes) Anisotropy Studies of Ultra-High Energy Cosmic Rays Using Monocular Data Collected by the High-Resolution Fly's Eye (HiRes)

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....1..425b&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

While the existence of cosmic rays with energies exceeding 1018 electronvolts has been well established, attempts to correlate these particles with sources have yielded results which are ambiguous at best. Even the highest energy events, whose energies render them largely immune to bending by galactic magnetic fields, have eluded identification with particular sources. We present here the results of new searches for anisotropy within the HiRes mono cular dataset, which contains events ranging from 1018 to over 1020 eV. Using various skymap analysis techniques, we search for event excesses from a priori pointlike sources (Cygnus X-3, M87, and the AGASA "triplet"), extended sources (the galactic and supergalactic planes) and evidence for dip ole moments in the full sky survey. We place upper limits on the existence of both pointlike and extended sources within HiRes' Northern Hemisphere field of view.

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