The measured abundance ratio of the
actinides (uranium, et al.) to the lead-platinum group of elements
has decreased as techniques have improved. The most reliable recent
results from HEAO 3 indicate that the actinide abundances are
consistent with the solar system abundances. [W. Binns et al.
Astrophys. J. 261, L17 (1982).]
SP-466 The Star Splitters
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