Spectral Features and Masses in the PeV Region
Abstract
An analysis is made of the masses and spectral features for cosmic rays in the PeV region, insofar as they have a bearing on the problem of the interaction of cosmic ray particles. In our Single Source Model we identified two 'peaks' seen in a summary of the world's data on primary spectra, and claimed that they are probably due to oxygen and iron nuclei from a local, recent supernova. In the present work we examine other possible mass assignments. We conclude that of the other possibilities only Helium and Oxygen (instead of O and Fe) has much chance of success; the original suggestion is still preferred, however. Concerning our location with respect to the SNR shell, the analysis suggests that we are close to it - probably just inside.
Cite
@article{arxiv.astro-ph/0210192,
title = {Spectral Features and Masses in the PeV Region},
author = {A. D. Erlykin and A. W. Wolfendale},
journal= {arXiv preprint arXiv:astro-ph/0210192},
year = {2009}
}
Comments
4 pages, 2 figures, talk presented at XII Inrternational Symposium on Very High Energy Cosmic Ray Interactions, CERN, Geneva, 15-19 July 2002, to be published in Nucl.Phys.B (Proc.Suppl.)