Abstract
MEASUREMENTS of the chemical composition of cosmic rays1 have shown that for most elements the abundances roughly correspond to their universal abundances. I wish to point out here that some systematic differences occur in the low energy range, which are correlated with the first ionization potentials of the corresponding elements.
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References
Meyer, P., Ann. Rev. Astron. and Astrophys., 7, 1 (1969).
Unsöld, A. O. J., Science, 163, 1015 (1969).
Comstock, G. M., Astrophys. J., 155, 619 (1969).
Pottasch, S. R., in Abundance Determinations in Stellar Spectra (Intern. Astron. Symp. Union, No. 26) (edit. by Hubenet, H.), 200 (Academic Press, 1966).
Garz, T., Holweger, A., Kock, M., and Richter, J., Astron. and Astrophys., 2, 446 (1968).
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HAVNES, O. Abundances and Acceleration Mechanisms of Cosmic Rays. Nature 229, 548–549 (1971). https://doi.org/10.1038/229548a0
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DOI: https://doi.org/10.1038/229548a0
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