scholarly journals Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment

2020 ◽  
Vol 898 (2) ◽  
pp. L28
Author(s):  
R. U. Abbasi ◽  
M. Abe ◽  
T. Abu-Zayyad ◽  
M. Allen ◽  
R. Azuma ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Large Scale ◽  
High Energy ◽  
Ultra High Energy ◽  
Telescope Array ◽  
High Energy Cosmic Rays ◽  
Arrival Directions

ENERGY ORDERING EFFECTS IN THE ARRIVAL DIRECTIONS OF ULTRA-HIGH ENERGY COSMIC RAYS MEASURED BY THE PIERRE AUGER OBSERVATORY

2011 ◽  
Vol 20 (supp02) ◽  
pp. 50-56
Author(s):  
◽  
PETER SCHIFFER
Keyword(s):  
Cosmic Rays ◽  
Magnetic Fields ◽  
Charged Particles ◽  
High Energy ◽  
Pierre Auger Observatory ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays ◽  
Ordering Effects ◽  
Arrival Directions

The Pierre Auger Observatory is the world's largest experiment for the measurement of ultra-high energy cosmic rays (UHECRs). These UHECRs are assumed to be to be charged particles, and thus are deflected in cosmic magnetic fields. Recent results of the Pierre Auger Observatory addressing the complex of energy ordering of the UHECRs arrival directions are reviewed in this contribution. So far no significant energy ordering has been observed.

scholarly journals A STUDY ON ANISOTROPY IN THE ARRIVAL DIRECTIONS OF ULTRA-HIGH-ENERGY COSMIC RAYS OBSERVED BY PIERRE AUGER OBSERVATORY

2013 ◽  
Vol 28 (18) ◽  
pp. 1350075
Author(s):  
HANG BAE KIM
Keyword(s):  
Cosmic Rays ◽  
High Energy ◽  
Angular Distance ◽  
Pierre Auger Observatory ◽  
South Pole ◽  
Ultra High Energy ◽  
Background Contribution ◽  
High Energy Cosmic Rays ◽  
Centaurus A ◽  
Arrival Directions

We study the anisotropy in the arrival directions of Pierre Auger Observatory (PAO) ultra-high-energy cosmic rays (UHECRs), using the point source correlational angular distance distribution (CADD). The result shows that the anisotropy is characterized by one prominent excess region and one void region. The excess region is located near the Centaurus A direction, supporting that the Centaurus A is a promising UHECR source. The void region near the south pole direction may be used to limit the diffuse isotropic background contribution.

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