Auger North

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Auger North. Continuation of plans to construct the Pierre Auger Observatory: detector systems located at two sites, on both hemispheres Southern observatory (in Mendoza, Argentina) is under construction Northern observatory (in Colorado, USA) is in planning stage. - PowerPoint PPT Presentation

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  • Auger NorthContinuation of plans to construct the Pierre Auger Observatory:detector systems located at two sites, on both hemispheres

    Southern observatory (in Mendoza, Argentina) is under constructionNorthern observatory (in Colorado, USA) is in planning stageHenryk Wilczyski Network session at ApPEC SC meeting, Warsaw 3 July 2006

  • MotivationFor explanation of the origin of UHE cosmic rays:need to determine distribution of arrival directions, energy spectrum, composition

    Northern and Southern sky differ very much in distribution of matter seen:local Supercluster in the NorthGalactic center in the South

    - different distributions of potential cosmic ray sources - arrival direction anisotropy expected!- identification of point sources, photons in UHECR much better with 2 sites

    full sky coverage is essential

  • Auger South and North sky coverageMatter distribution at 7-21 MpcExclusion zones: north array south array

    Cronin, astro-ph/0402487

  • UHE photon identificationDifferent geomagnetic field conditions at Auger North and South sites - very favorable for identification of photons from point sources

  • Northern Auger ObservatorySite chosen in South-Eastern Colorado

    Basic detector systems similar to that at Southern site for seamless data integration

    Possible modifications of original design considered:include radio detection of extensive air showerscover larger area (10 000 km2 instead of 3000 km2)

    New collaborators are welcome