NASA NTRS · 19750053952
Origin of cosmic rays
Abstract
Based on recent observations of the galactic gas and gamma ray distributions, the galactic cosmic ray distribution is deduced. This distribution is identical to that of supernova remnants (within experimental error), strongly supporting the hypothesis that most observed cosmic rays are produced by supernovas in our own galaxy. The average age of the cosmic ray sources is suggested, from the character of their distribution, to be about 30 million years.
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Stecker, F. W.. 1975-07-21. Origin of cosmic rays. https://ntrs.nasa.gov/citations/19750053952
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