Mathematics – Probability
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...262..739b&link_type=abstract
Astrophysical Journal, Part 1, vol. 262, Nov. 15, 1982, p. 739-741.
Mathematics
Probability
8
Cosmology, Lutetium Isotopes, Nuclear Fusion, Radioactive Age Determination, Stellar Temperature, Abundance, Isomers, Nuclear Chemistry, Solar System
Scientific paper
The s-process nucleosynthesis of the isobar pair Lu-176/Hf-176, a long-lived cosmic clock, is examined in conjunction with the s-only isotopes Sm-148,150, Gd-154, Dy-160, Yb-170, Os-186, and Pt-192. Expressions are derived which make it possible to calculate the s-process age from measured quantities alone. A formula is specified which does not contain the population probability P of the 3.68 hr isomeric state in Lu-176. This makes it possible to decide if Lu-176 is, in addition to a cosmic clock, also a stellar thermometer.
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