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

Abstract

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 x 10^19 eV, 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 4 microG near the Earth, one can reconstruct the deflection power with 25% precision in 68% of cases.

20 pages, 10 figures. Corresponds to the version published in JCAP

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Cited by in corpus (10)

• Cosmic-ray propagation with DRAGON2: I. numerical solver and astrophysical ingredients
• Open Questions in Cosmic-Ray Research at Ultrahigh Energies
• Cosmic Ray Anisotropy as Signature for the Transition from Galactic to Extragalactic Cosmic Rays
• Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers
• Escape model for Galactic cosmic rays and an early extragalactic transition
• Ultrahigh Energy Nuclei in the Turbulent Galactic Magnetic Field
• Ultrahigh Energy Nuclei in the Galactic Magnetic Field
• Anisotropy expectations for ultra-high-energy cosmic rays with future high statistics experiments
• Method to Look for Imprints of Ultrahigh Energy Nuclei Sources
• Search for ultra high energy cosmic ray sources. FRI radio galaxy Centaurus A