Detectability of the Sgr Dwarf Leading Tidal Stream with Auger, EUSO or OWL
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We point out that if heavy metastable particles composing the dark matter of our galaxy are responsible for the ultra-high energy cosmic rays (UHECR) then the leading tidal stream of the Sagittarius dwarf galaxy could be detected through UHECR. The signal would be an anisotropy in the UHECR flux smaller than the telltale anisotropy towards the galactic center that would first establish unstable dark matter as the origin of the UHECR.
14 pages, 5 figures, replaced with accepted version
14 pages, 5 figures, replaced with accepted version