Extragalactic radiation and the ultra-high-energy cosmic-ray spectrum

Details Extragalactic radiation and the ultra-high-energy cosmic-ray spectrum Extragalactic radiation and the ultra-high-energy cosmic-ray spectrum

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.342..401s&link_type=abstract

Nature (ISSN 0028-0836), vol. 342, Nov. 23, 1989, p. 401-403.

Physics

19

Black Body Radiation, Cosmic Rays, Extraterrestrial Radiation, High Energy Interactions, Radiation Spectra, Background Radiation, Formalism, Spectrum Analysis, Submillimeter Waves

Scientific paper

The effect of extragalactic microwave and submillimeter-radiation fields on the ultrahigh-energy cosmic-ray spectrum is reexamined. It is found that the general characteristics of the spectrum can be derived from fairly simple analytical arguments. It is shown that the various spectral features obtained by numerical calculations can be explored by simpler and more general means. This approach is illustrated using a newly derived lifetime-energy relation based on the new submillimeter observations.

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