Everything about Nucleocosmochronology totally explained
Nucleocosmochronology, also known as
cosmochronology, is a relatively new technique used to determine timescales for astrophysical objects and events. This technique employs the abundances of radioactive nuclides in a way that's very similar to the use of
C14 in dating archeological samples, save that the elements measured are typically
uranium and
thorium.
Nucleocosmochronology has already been successfully employed to determine the age of the
Sun (4.57±0.02
Ga, for example, 4.57×10
9 years) and of the Galactic thin disk (8.3±1.8 Ga), among others. It has also been used to estimate the age of the
Milky Way itself, as exemplified by recent study of the
halo star CS31082-001. Limiting factors in its precision are the quality of observations of faint stars, and perhaps more importantly, the uncertainty of the primordial abundances of
r-process elements.
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