A Search for Small-Scale Anisotropy of PeV Cosmic Rays
High Energy Astrophysical Phenomena
2012-11-09 v1
Abstract
Recent results of Milagro, Tibet, ARGO-YBJ and IceCube experiments on the small-scale anisotropy of Galactic cosmic rays (CRs) with energies from units up to a few hundred TeV arise a question on a possible nature of the observed phenomenon, as well as on the anisotropy of CRs at higher energies. An analysis of a small-scale anisotropy of CRs with energies at around PeV registered with the EAS MSU array presented in the article, reveals a number of regions with an excessive flux. A typical size of the regions varies from 3 up to 12 degrees. We study correlation of these regions with positions of potential astrophysical sources of CRs and discuss a possible origin of the observed anisotropy.
Keywords
Cite
@article{arxiv.1203.2472,
title = {A Search for Small-Scale Anisotropy of PeV Cosmic Rays},
author = {M. Yu. Zotov and G. V. Kulikov},
journal= {arXiv preprint arXiv:1203.2472},
year = {2012}
}
Comments
16 pages with 4 figures