Anisotropy signal of UHECRs from a structured magnetized Universe

Understand

The surprising isotropy of the ultra-high-energy cosmic ray (UHECR) sky makes it difficult to identify their sources.

• Observables such as energy spectrum, mass composition and arrival directions are affected by interactions with background photon fields and by deflection in the extragalactic and galactic magnetic fields (EGMF and GMF).
• In this work, we simulate the propagation of UHECRs with energy above 8 EeV in magnetized replicas of the local Universe, obtained from constrained simulations of the Large Scale Structure.
• We obtain the real magnetic deflection in structured EGMF models with realistic three-dimensional simulations.