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تسجيل مستخدم جديدBounds on the density of sources of ultra-high energy cosmic rays from the Pierre Auger Observatory
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We derive lower bounds on the density of sources of ultra-high energy cosmic rays from the lack of significant clustering in the arrival directions of the highest energy events detected at the Pierre Auger Observatory. The density of uniformly distributed sources of equal intrinsic intensity was found to be larger than $sim (0.06 - 5) times 10^{-4}$ Mpc$^{-3}$ at 95% CL, depending on the magnitude of the magnetic deflections. Similar bounds, in the range $(0.2 - 7) times 10^{-4}$ Mpc$^{-3}$, were obtained for sources following the local matter distribution.
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With the Surface Detector array (SD) of the Pierre Auger Observatory we can detect neutrinos with energy between $10^{17},$eV and $10^{20},$eV from point-like sources across the sky, from close to the Southern Celestial Pole up to $60^circ$ in declin
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Studies of the correlations of ultra-high energy cosmic ray directions with extra-Galactic objects, of general anisotropy, of photons and neutrinos, and of other astrophysical effects, with the Pierre Auger Observatory. Contributions to the 31st ICRC, Lodz, Poland, July 2009.
Neutrinos with energies above $10^{17}$ eV are detectable with the Surface Detector Array of the Pierre Auger Observatory. The identification is efficiently performed for neutrinos of all flavors interacting in the atmosphere at large zenith angles,
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