Ultra High Energy Particles Propagation and the Transition from Galactic to Extra-Galactic Cosmic Rays

TL;DR

This paper examines how ultra-high-energy cosmic rays propagate through space, compares computational methods for flux predictions, and analyzes the transition from galactic to extragalactic cosmic rays using theoretical models.

Contribution

It introduces and compares two computational schemes for modeling cosmic ray fluxes and discusses the galactic to extragalactic transition based on theoretical flux predictions.

Findings

Comparison of two propagation computation schemes

Insights into the galactic-extragalactic transition

Theoretical flux models for cosmic ray origins

Abstract

We discuss the basic features of the propagation of Ultra High Energy Cosmic Rays in astrophysical backgrounds, comparing two alternative computation schemes to compute the expected fluxes. We also discuss the issue of the transition among galactic and extra-galactic cosmic rays using theoretical results on fluxes to compare different models.