The signature of local cosmic structures on the ultra-high energy cosmic ray anisotropies

Details The signature of local cosmic structures on the ultra-high energy cosmic ray anisotropies The signature of local cosmic structures on the ultra-high energy cosmic ray anisotropies

2006-09-20

arxiv.org/abs/astro-ph/0609577v1

Nucl.Phys.Proc.Suppl.165:264-271,2007

Astronomy and Astrophysics

Astrophysics

8 pages, 6 figures, contribution to the CRIS06 proceedings (Catania, Italy, May 29 - June 2, 2006)

Scientific paper

10.1016/j.nuclphysbps.2006.11.03

Current experiments collecting high statistics in ultra-high energy cosmic rays (UHECRs) are opening a new window on the universe facing the possibility to perform UHECR astronomy. Here we discuss a large scale structure (LSS) model for the UHECR origin for which we evaluate the expected large scale anisotropy in the UHECR arrival distribution. Employing the IRAS PSCz catalogue as tracer of the LSS, we derive the minimum statistics needed to reject or assess the correlation of the UHECRs with the baryonic distribution in the universe, in particular providing a forecast for the Auger experiment.

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