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Physics: Faculty Publications and Other Works

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2020

Astrophysical magnetism

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Evidence For A Supergalactic Structure Of Magnetic Deflection Multiplets Of Ultra-High-Energy Cosmic Rays, Rasha U. Abbasi Aug 2020

Evidence For A Supergalactic Structure Of Magnetic Deflection Multiplets Of Ultra-High-Energy Cosmic Rays, Rasha U. Abbasi

Physics: Faculty Publications and Other Works

Evidence for a large-scale supergalactic cosmic-ray multiplet (arrival directions correlated with energy) structure is reported for ultra-high-energy cosmic-ray (UHECR) energies above 1019 eV using 7 years of data from the Telescope Array (TA) surface detector and updated to 10 years. Previous energy–position correlation studies have made assumptions regarding magnetic field shapes and strength, and UHECR composition. Here the assumption tested is that, because the supergalactic plane is a fit to the average matter density of the local large-scale structure, UHECR sources and intervening extragalactic magnetic fields are correlated with this plane. This supergalactic deflection hypothesis is tested by the entire …