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The arrival directions of the most energetic cosmic rays

Todor Stanev·Peter Biermann·Jeremy Lloyd-Evans·Joerg Rachen·Alan Watson
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Abstract

In this Letter we examine the arrival directions of the most energetic cosmic rays (E > 2 * 10^19 eV) detected by several air shower experiments. We find that data taken by different air shower arrays show positive correlations, indicating a non--uniform arrival direction distribution. We also find that the events with energy $ > 4 * 10^19 eV exhibit a correlation with the general direction of the supergalactic plane, where a large number of potential sources is located. If confirmed by data from other experiments our results would support models for the extragalactic origin of the highest energy cosmic rays.

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Todor Stanev, Peter Biermann, Jeremy Lloyd-Evans, Joerg Rachen, Alan Watson. 1995-09-11. The arrival directions of the most energetic cosmic rays. https://doi.org/10.1103/physrevlett.75.3056

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