Abstract
Attempts are being made to establish the origin of cosmic rays using the γ-ray method, that is, by dividing γ-ray intensity by gas-column density to chart the cosmic-ray intensity. Here we present evidence from satellite data on γ rays and from new results on the distribution of gas in the interstellar medium (ISM) for an enhancement of electron and proton intensity in the Loop I supernova remnant (SNR). There follows from this a straightforward explanation for the origin of the bulk of the low-energy cosmic radiation.
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Bhat, C., Issa, M., Mayer, C. et al. Acceleration of cosmic rays in the Loop I ‘supernova remnant’?. Nature 314, 515–517 (1985). https://doi.org/10.1038/314515a0
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DOI: https://doi.org/10.1038/314515a0
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