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Title:Supergalactic Structure of Multiplets with the Telescope Array Surface Detector
Authors:ID Lundquist, Jon Paul, UNG (Author)
ID Sokolsky, P. (Author)
Files:.pdf epjconf_uhecr18_01006.pdf (1,38 MB)
MD5: 29A1AD79BDB11068FC731FE6D1AF8A22
 
Language:English
Work type:Not categorized
Typology:1.08 - Published Scientific Conference Contribution
Organization:UNG - University of Nova Gorica
Abstract:Evidence of supergalactic structure of multiplets has been found for ultra-high energy cosmic rays (UHECR) with energies above 10^19 eV using 7 years of data from the Telescope Array (TA) surface detector. The tested hypothesis is that UHECR sources, and intervening magnetic fields, may be correlated with the supergalactic plane, as it is a fit to the average matter density within the GZK horizon. This structure is measured by the average behavior of the strength of intermediate-scale correlations between event energy and position (multiplets). These multiplets are measured in wedge-like shapes on the spherical surface of the fieldof-view to account for uniform and random magnetic fields. The evident structure found is consistent with toy-model simulations of a supergalactic magnetic sheet and the previously published Hot/Coldspot results of TA. The post-trial probability of this feature appearing by chance, on an isotropic sky, is found by Monte Carlo simulation to be ~4.5σ.
Keywords:UHECR, cosmic rays, energy spectrum, anisotropy, large-scale structure, magnetic deflection
Publication status:Published
Year of publishing:2019
Number of pages:6
PID:20.500.12556/RUNG-5162-7324d35e-0562-2024-3262-7fe001a858aa New window
COBISS.SI-ID:12864515 New window
DOI:10.1051/epjconf/201921001006 New window
NUK URN:URN:SI:UNG:REP:L0MMB7RX
Publication date in RUNG:28.04.2020
Views:2737
Downloads:149
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Record is a part of a monograph

Title:EPJ Web of Conferences
Place of publishing:EPJ Web of Conferences
Year of publishing:2019

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