Search for single sources of ultra high energy cosmic rays on the sky

G. Giacinti (1) , X. Derkx (1) , D.V. Semikoz (2)

1 APC (UMR_7164) - AstroParticule et Cosmologie
2 APC - THEORIE

In this paper, we suggest a new way to identify single bright sources of Ultra High Energy Cosmic Rays (UHECR) on the sky, on top of background. We look for doublets of events at the highest energies, E > 6 . 1019eV, and identify low energy tails, which are deflected by the Galactic Magnetic Field (GMF). For the sources which are detected, we can recover their angular positions on the sky within one degree from the real ones in 68% of cases. The reconstruction of the deflection power of the regular GMF is strongly affected by the value of the turbulent GMF. For typical values of 4μG near the Earth, one can reconstruct the deflection power with 25% precision in 68% of cases.

Domaines: Phénomènes cosmiques de haute energie [astro-ph.HE]; Phénomènes cosmiques de haute energie [astro-ph.HE]

G. Giacinti, X. Derkx, D.V. Semikoz. Search for single sources of ultra high energy cosmic rays on the sky. Journal of Cosmology and Astroparticle Physics, 2010, 03, pp.022. ⟨10.1088/1475-7516/2010/03/022⟩. ⟨hal-00713349⟩