Abstract
We re-examine the interaction of ultra high 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 the bump which is followed by the expected cutoff.
Keywords
ultra high energy nuclei, microwave background radiation
Subject Categories
Cosmic rays, Astrophysics, Cosmic background radiation
Disciplines
Physics
Publication Date
1998
Permanent URL
Recommended Citation
Anchordoqui, L. A.; Dova, M. T.; Epele, L. N.; and Swain, J. D., "A depression before a bump in the highest energy cosmic ray spectrum" (1998). Physics Faculty Publications. Paper 2. http://hdl.handle.net/2047/d20000355
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Notes
Originally posted at http://arxiv.org/abs/astro-ph/9708082v2. Preprint of an article published in Physical Review D, v.57 no.12, 1998.