K. Kawata (Author), A. Di Matteo (Author), Takashi Fujii (Author), D. Ikeda (Author), D. Ivanov (Author), C. C. H. Jui (Author), Erika Kido (Author), J. P. Lundquist (Author), J. N. Matthews (Author), S. Nagataki (Author)

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

high energy;cosmic rays;anisotropy;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: UNG - University of Nova Gorica
UDC: 52
COBISS: 12880643 Link will open in a new window
ISSN: 1824-8039
Views: 1846
Downloads: 75
Average score: 0 (0 votes)
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Other data

URN: URN:SI:UNG
Type (COBISS): Not categorized
Pages: str. 1-5
Chronology: 2019
ID: 11596560