Galactic origin of ultrahigh energy cosmic rays

TL;DR

This paper analyzes the arrival directions of ultrahigh energy cosmic rays from multiple observatories, constructing celestial maps and detecting large-scale anisotropy, to investigate their galactic origin.

Contribution

It introduces the first celestial maps of equal exposure for AGASA and P. Auger data and identifies large-scale anisotropy in cosmic ray distribution at energies above 4×10^19 eV.

Findings

Detection of large-scale anisotropy in cosmic ray arrival directions.

Construction of equal-exposure celestial maps for multiple observatories.

Discussion on the galactic origin of ultrahigh energy cosmic rays.

Abstract

The arrival directions of ultrahigh energy extensive air showers (EAS) by Yakutsk, AGASA, P. Auger array data are analyzed. For the first time, the maps of equal exposition of celestial sphere for the distribution of particles by AGASA and P. Auger arrays data have been constructed. The large-scale anisotropy of cosmic particles at E>4.1019 eV by Yakutsk, AGASA and P. Auger array data has been detected. The problem of cosmic particle origin is discussed.