Supergalactic Structure of Energy-Angle Correlationsopen access
- Authors
- Lundquist, J.P.[Lundquist, J.P.]; Sokolsky, P.[Sokolsky, P.]; the Telescope Array Collaboration[the Telescope Array Collaboration]
- Issue Date
- Jul-2021
- Publisher
- Sissa Medialab Srl
- Citation
- Proceedings of Science, v.358
- Indexed
- SCOPUS
- Journal Title
- Proceedings of Science
- Volume
- 358
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/99070
- ISSN
- 1824-8039
- Abstract
- Evidence for the supergalactic structure of multiplets (energy-angle correlations) has previously been shown using ultra-high energy cosmic ray (UHECR) data from Telescope Array (TA) with energies above 1019 eV. The supergalactic deflection hypothesis (that UHECR sources and intervening magnetic fields are correlated) is measured by the all-sky behavior of the strength of intermediate-scale correlations. The multiplets are measured in spherical surface wedge bins of the field-of-view to account for uniform and random magnetic fields. The structure found is consistent with the previously published energy spectrum anisotropy results of TA and toy-model simulations of a supergalactic magnetic sheet. The 7 year data post-trial significance of this feature appearing by chance, on an isotropic sky, was found by Monte Carlo simulation to be ∼4σ. The analysis has now been applied to 10 years of data. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)
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