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 enryk Wilczyński Network session at ApPEC SC meeting, Warsaw 3 July 2006

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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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Page 1: Auger North

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 constructionNorthern observatory (in Colorado, USA) is in planning stage

Henryk Wilczyński Network session at ApPEC SC meeting, Warsaw 3 July 2006

Page 2: Auger North

Motivation

For 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

Page 3: Auger North
Page 4: Auger North

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

Cronin, astro-ph/0402487

Page 5: Auger North

UHE photon identification

Different geomagnetic field conditions at Auger North and South sites - very favorable for identification of photons from point sources

Page 6: Auger North

Northern Auger Observatory

Site 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