Sensitivity of orbiting JEM-EUSO to large-scale cosmic-ray anisotropies

Authors

Peter B. Denton, Vanderbilt University
Luis A. Anchordoqui, CUNY Lehman CollegeFollow
Andreas A. Berlind, Vanderbilt University
Matthew Richardson, Vanderbilt University
Thomas J. Weiler, Vanderbilt University

Document Type

Article

Publication Date

2014

Abstract

The two main advantages of space-based observation of extreme-energy (& 1019 eV) cosmic-rays (EECRs) over ground-based observatories are the increased field of view, and the all- sky coverage with nearly uniform systematics of an orbiting observatory. The former guarantees increased statistics, whereas the latter enables a partitioning of the sky into spherical harmonics. We have begun an investigation, using the spherical harmonic technique, of the reach of JEM- EUSO into potential anisotropies in the extreme-energy cosmic-ray sky-map. The technique is explained here, and simulations are presented. The discovery of anisotropies would help to identify the long-sought origin of EECRs.

Comments

This work was originally published in the Journal of Physics: Conference Series, available at DOI:10.1088/1742-6596/531/1/012004.

This work was distributed under the terms of the Creative Commons Attribution 3.0 License.