The end of the Galactic spectrum
C. De Donato (1), G. A. Medina-Tanco (2) ((1) Dipartimento di Fisica, dell'Universit\`a degli Studi di Milano, INFN, Milano, Italy (2) Dep., Altas Energias, Inst. de Ciencias Nucleares, Universidad Nacional Autonoma de, Mexico, Mexico DF)
TL;DR
This paper investigates the transition from Galactic to extragalactic cosmic rays using diffusion models and compares the combined spectrum with experimental data to understand the cosmic ray spectrum's end.
Contribution
It introduces a detailed analysis of the Galactic-extragalactic transition using two extragalactic models within a diffusion framework.
Findings
The combined spectrum matches experimental data at high energies.
Different extragalactic models influence the transition shape.
The study provides insights into the cosmic ray spectrum's end.
Abstract
We use a diffusion galactic model to analyze the end of the Galactic cosmic ray spectrum and its mixing with the extragalactic cosmic ray flux. We analyze the transition between Galactic and extragalactic components using two different extragalactic models. We compare the sum of the diffusive galactic spectrum and extragalactic spectrum with the available experimental data.
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