Physics – Nuclear Physics
Scientific paper
Dec 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982stin...8334868s&link_type=abstract
Presented at the 18th General Assembly of the Intern. Astron. Union, Patras, Greece, 17-26 Aug. 1982
Physics
Nuclear Physics
Big Bang Cosmology, Radioactive Age Determination, Universe, Abundance, Consistency, Heavy Elements
Scientific paper
A review is made of how one can use nuclear physics to put rather stringent limits on the age of the universe and thus the cosmic distance scale. The age can be estimated to a fair degree of accuracy. No single measurement of the time since the Big Bang gives a specific, unambiguous age. There are several methods that together fix the age with surprising precision. In particular, there are three totally independent techniques for estimating an age and a fourth technique which involves finding consistency of the other three in the framework of the standard Big Bang cosmological model. The three independent methods are: cosmological dynamics, the age of the oldest stars, and radioactive dating. This paper concentrates on the third of the three methods, and the consistency technique.
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