Jul 12 – 23, 2021
Europe/Berlin timezone

Update on the large-scale cosmic-ray anisotropy search at the highest energies by the Telescope Array Experiment

Jul 15, 2021, 12:00 PM
1h 30m


Poster CRI | Cosmic Ray Indirect Discussion


Toshihiro Fujii (Hakubi Center for Advanced Research, Kyoto University)


Large-scale anisotropy at the highest energies is essential for the understanding the transition from cosmic rays of galactic origin to those of extra-galactic origin, along with the magnetic fields in the galaxy and those beyond. Motivated by a significant detection of the large-scale anisotropy above 8 EeV by the Pierre Auger Observatory (Auger), we have previously reported, using 11 years of Telescope Array (TA) surface array data, a result compatible with both that of Auger, and with a isotropic source distribution [ApJL, 898:L28, (2020)]. In this contribution, we will show latest results to search for the large-scale anisotropy at the highest energies.


Ultra-high-energy cosmic rays, extensive air shower, large scale anisotropy, dipole, magnetic field

Collaboration Telescope Array
Subcategory Experimental Results

Primary authors

Toshihiro Fujii (Hakubi Center for Advanced Research, Kyoto University) for the Telescope Array Collaboration

Presentation materials