Cosmic ray anisotropies from transient extragalactic sources

TL;DR

This paper investigates how ultrahigh energy cosmic rays from transient extragalactic sources exhibit spectrum and anisotropy features influenced by turbulent magnetic fields, analyzing the transition between different propagation regimes.

Contribution

It provides a detailed analysis of the spectrum and anisotropies of cosmic rays from transient sources, including the transition between diffusive and rectilinear propagation regimes.

Findings

Identification of new features in the transition regime

Characterization of anisotropy patterns

Insights into magnetic field effects on cosmic ray propagation

Abstract

We study the spectrum and anisotropies of ultrahigh energy cosmic ray transient sources, accounting for the effects of their propagation through the turbulent extragalactic magnetic fields. We consider either bursting sources or sources emitting since a given initial time. We analyse in detail the transition between the diffusive and the quasi-rectilinear regimes, describing some new features that could be present