English

Are EeV cosmic rays isotropic at intermediate scales?

High Energy Astrophysical Phenomena 2014-09-23 v1

Abstract

We study anisotropy of cosmic rays in the energy range 0.2-1.4 EeV at intermediate angular scales using the public data set of the Pierre Auger Observatory. At certain scales, the analysis reveals a number of deviations from the isotropic distribution with the statistical significance above three standard deviations. It also demonstrates that the anisotropy evolves with energy. If confirmed with the complete Auger or Telescope Array data sets, the result can shed new light on the structure of galactic magnetic fields and the problem of transition from galactic to extragalactic cosmic rays.

Keywords

Cite

@article{arxiv.1409.6138,
  title  = {Are EeV cosmic rays isotropic at intermediate scales?},
  author = {M. Yu. Zotov},
  journal= {arXiv preprint arXiv:1409.6138},
  year   = {2014}
}

Comments

9 pages, 2 figures

R2 v1 2026-06-22T06:02:16.328Z