Structure in the cosmic ray spectrum: an update

Details Structure in the cosmic ray spectrum: an update Structure in the cosmic ray spectrum: an update

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jphg...27.1005e&link_type=abstract

Journal of Physics G: Nuclear and Particle Physics, Volume 27, Issue 5, pp. 1005-1030 (2001).

Physics

34

Scientific paper

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 ~ 3×106 GeV for oxygen nuclei and ~ 1×107 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'.

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