Physics
Scientific paper
Aug 1971
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971natur.232..551k&link_type=abstract
Nature, Volume 232, Issue 5312, pp. 551-552 (1971).
Physics
5
Scientific paper
THE possibility that transuranium elements are present in the surface layers of peculiar A stars was raised last year1,2 after Jaschek and Malaroda3 announced evidence for the presence of uranium lines in the Ap star 73 Dra. Further information about the abundances of transbismuth elements in peculiar A stars is now available4-6 and there is strong evidence7,8 for the presence of promethium lines in the peculiar A star HR 465. All these facts imply, in the framework of the Guthrie-Van den Heuvel theory of the origin of Ap stars9,10, that a search for transuranium elements in the spectra of those stars, at least in those in which uranium or promethium has been detected, should give positive results. It may even be possible to find the spectral lines of superheavy elements from the island of stability11 near Z = 114.
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