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29th International Cosmic Ray Conference, ICRC 2005, Pune : Inde
Requirements and simulation study of the performance of EUSO as external payload on board the International Space Station
O. Catalano, G. D'Ali Staiti, M.C. Maccarone, S. Bottai, D. Naumov, M. Pallavicini, A. Petrolini, R. Pesce, A. Thea, C. Berat1, S. Moreggia1, A. Stutz1, J. Dolbeau2, E. Plagnol2
EUSO Collaboration(s)

The "Extreme Universe Space Observatory - EUSO" has been conceived as the first Space mission devoted to the investigation of Ultra High Energy Cosmic Ray, using the Earth's atmosphere as a giant detector. The scientific objectives of the experiment are to observe the UHECR spectrum above the GZK energy, with an improvement of one order of magnitude in the statistics of collected events with respect to the existing experiments, in such a way to study the source distribution in a full sky survey, as well as to open the channel (set a confidence limit) on the neutrino astronomy in this energy range. Supposed to be accommodated as external payload on board the International Space Station, EUSO phase A study has been positively completed in July 2004. Nowadays, due to funding problems of the Space Agencies involved in the project, EUSO is currently on hold. Nevertheless, as result of an end-to-end simulation approach, we summarize here the expected scientific performance coming out from the phase A, as well as the expected improvements in the technical performance of the EUSO Instrument to be achieved during Phase B, in order to fulfil the scientific objectives posed as goal of the experiment.
1 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 :  APC - UMR 7164 - AstroParticule et Cosmologie
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique
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