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Title:Updated Results on the UHECR Hotspot Observed by the Telescope Array Experiment
Authors:Kawata, K. (Author)
Lundquist, J. P. (Author)
et al.
Files:.pdf ICRC2019_310.pdf (934,91 KB)
Work type:Not categorized (r6)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:UNG - University of Nova Gorica
Abstract:The Telescope Array Experiment has observed an indication of intermediate-scale anisotropy in the UHECR arrival directions, called the Hotspot, with E>57 EeV around the Ursa Major using the first 5-year data during a period between May 2008 and May 2013 collected by the TA surface detector array. The chance probability of this hotspot in an isotropic cosmic-ray sky was calculated to be 3.4σ (post trial). In this paper, we will report on an update of this result using the 11-year data collected by the TA surface detectors with more than doubled exposure since the first publication.
Keywords:UHECR, cosmic rays, anisotropy
Year of publishing:2019
Number of pages:5
Numbering:358, ICRC2019
COBISS_ID:12880643 Link is opened in a new window
License:CC BY-NC-ND 4.0
This work is available under this license: Creative Commons Attribution Non-Commercial No Derivatives 4.0 International
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Title:Proceedings of Science ICRC 2019
Year of publishing:2019