Updates on the Hotspot and the Perseus-Pisces supercluster Excess Observed by the Telescope Array Experiment

被引:1
|
作者
Kim, Jihyun [1 ,2 ]
Ivanov, Dmitri [1 ,2 ]
Kawata, Kazumasa [3 ]
Sagawa, Hiroyuki [3 ]
Thomson, Gordon [1 ,2 ]
机构
[1] Univ Utah, High Energy Astrophys Inst, Salt Lake City, UT 84112 USA
[2] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA
[3] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan
来源
ULTRA HIGH ENERGY COSMIC RAYS, UHECR 2022 | 2023年 / 283卷
关键词
SURFACE DETECTOR; COSMIC-RAYS; COSMOGRAPHY; ANISOTROPY;
D O I
10.1051/epjconf/202328303005
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Telescope Array (TA) experiment, the largest observatory studying ultra-high energy cosmic rays in the northern hemisphere, has reported evidence for two medium-scale anisotropies. The first, known as the TA hotspot, is an excess in the arrival direction distribution for events with energies greater than 5.7 x 10(19) eV. More recently, an additional excess of events with energies greater than 10(19.4) eV appearing in the direction of the Perseus-Pisces supercluster has been named the PPSC excess. In this presentation, we will update the status of the TA hotspot and the PPSC excess results using the most recent data measured by the TA surface detector array.
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页数:5
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