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Department of Physics

Staff profile

Publication details for Prof Sir Arnold Wolfendale

Erlykin, AD & Wolfendale, AW (2001). Structure in the cosmic ray spectrum: an update. Journal Of Physics G-nuclear And Particle Physics 27(5): 1005-1030.
  • Publication type: Journal Article
  • ISSN/ISBN: 0954-3899
  • Keywords: EAS SIZE SPECTRUM; ENERGY-SPECTRUM; CHEMICAL-COMPOSITION;SINGLE-SOURCE; AIR SHOWERS; SPECTROSCOPY; KNEE; REGION

Author(s) from Durham

Abstract

An update is given of the evidence from extensive air showers relating
to our claim that there is 'structure' in the energy spectrum of
high-energy cosmic rays. The structure: is explained, in our model, in
terms of there having been a recent nearby supernova, the remnant of
which has accelerated cosmic ray nuclei, with rather sharp energy
cut-offs at similar to 3 x 10(6) GeV for oxygen nuclei and similar to 1
x 10(7) GeV for iron nuclei. The addition of the later data on the
shower size spectra which amounts to a 250% increase and includes that
of Cherenkov radiation, hadrons and muons, is considered by us to
enhance the probability of our model being correct, although the case
is still not 'watertight'.