We study the anisotropy of Ultra-High Energy Cosmic Ray (UHECR) events collected by the
Telescope Array (TA) detector in the first 40 months of operation. Following earlier studies …

We use a new method to estimate the injected mass composition of ultrahigh cosmic rays
(UHECRs) at energies higher than 10 EeV. The method is based on comparison of the …

Modern observatories of ultra-high energy cosmic rays (UHECR) have collected over 104
events with energies above 10 EeV, whose arrival directions appear to be nearly …

We search for correlations between the positions of extragalactic objects and the arrival
directions of ultra-high energy cosmic rays (UHECRs) with primary energy E⩾ 40 EeV as …

Anisotropy in the arrival direction distribution of ultrahigh-energy cosmic rays (UHECRs)
produced by powerful sources is numerically evaluated. We show that nondetection of …

A dipole anisotropy in ultra–high-energy cosmic ray (UHECR) arrival directions, of
extragalactic origin, is now firmly established at energies E> 8 EeV. Furthermore, the …

We report an estimation of the injected mass composition of ultrahigh energy cosmic rays
(UHECRs) at energies higher than 10 EeV. The composition is inferred from an energy …

Context. Ultra-high-energy cosmic rays (UHECRs) have attracted a lot of attention in
astroparticle physics and high-energy astrophysics, due to their challengingly high energies …

The arrival directions of ultra-high-energy cosmic rays appear to be approximately
isotropically distributed over the whole sky, but the last-generation UHECR detector arrays …

Abstract Recently, the High Resolution Fly's Eye (HiRes) experiment has indicated that there
is no small-scale anisotropy in the arrival distribution of ultra-high-energy cosmic rays …