Other
Scientific paper
Nov 1965
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1965natur.208..886t&link_type=abstract
Nature, Volume 208, Issue 5013, pp. 886-887 (1965).
Other
3
Scientific paper
THE anomaly between the abundances of iron in the solar system derived from solar spectra and of that from meteorites is well known1. Relative to silicon, the abundance of iron in the chondritic meteorites appears to be several times larger than that observed in the Sun. Normalization to any other common element introduces a variation by a factor of two at most. The data are given in Tables 1 and 2. The solar and chondritic abundances of cobalt and nickel show a much smaller and perhaps not significant variation. Pottasch2 determined the abundances of several elements in the solar corona, finding an increased abundance of iron relative to silicon, compared with the abundances derived from the photosphere by Aller et al.3,4. These workers, who have provided the most recent estimates of solar abundances, conclude, after careful examination of the problem, that ``there seems no escape from the conclusion that the solar Fe/silicon or Fe/Fe group ratio is smaller than in the meteorites''4. Results by Fowler et al.5,11 on the relative abundances of the iron-group elements predicted from theories of nucleosynthesis, which correctly reproduce isotope ratios, are in substantial agreement with the solar-derived iron abundance. The chondritic iron/silicon and iron/cobalt/nickel ratios are securely based on extensive chemical analyses and are unlikely to be seriously in error.
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