タイトル | The cosmic ray abundances of the platinum-lead elements as measured on HEAO-3 |
著者(英) | Klarmann, J.; Stone, E. C.; Fixsen, D. J.; Newport, B. J.; Garrard, T. L.; Waddington, C. J.; Binns, W. R.; Israel, M. H. |
著者所属(英) | Washington Univ.|California Inst. of Tech.|Minnesota Univ. |
発行日 | 1983-01-01 |
言語 | eng |
内容記述 | The relative abundances of elements in the charge ranges of Z = 75-79 (platinum) and Z = 80-83 (lead) should be a sensitive indication of the contributions of the r- and s-processes in nucleosynthesis. Data from the HEAO 3 Heavy Nuclei Experiment are used to establish abundances, relative to iron, of these elements in the cosmic radiation, as well as the ratio of 'secondary' elements, in the Z = 62-74 range, to the primary lead-platinum elements. These results appear to suggest that either the source abundances are deficient in s-process elements or that they are not organized solely by first ionization potential. In addition, present propagation models can adequately represent the relative abundances of primary and secondary elements. |
NASA分類 | SPACE RADIATION |
レポートNO | 85A22983 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/393063 |
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