A depression before a bump in the highest energy cosmic ray spectrum

1997/08/31 by Luis A. Anchordoqui, L. A. Anchordoqui, M. T. Dova +4 · 3 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #astro-ph

paper · pdf · doi:10.1103/physrevd.57.7103

published as Phys.Rev. D57 (1998) 7103-7107 · revisited version, 5 pages RevTex, 5 figures

arxiv created 1997/12/19 · openalex publication_date 1998/06/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We reexamine the interaction of ultrahigh energy nuclei with the microwave background radiation. We find that the giant dipole resonance leaves a new signature in the differential energy spectrum of iron sources located around 3 Mpc: A depression before a bump which is followed by the expected cutoff.

Cited by

• Origin of the ankle in the ultrahigh energy cosmic ray spectrum, and of the extragalactic protons below it
• The intergalactic propagation of ultra-high energy cosmic ray nuclei
• Ensemble fluctuations of the flux and nuclear composition of ultrahigh energy cosmic ray nuclei