The r-process in the neutrino wind and UTh cosmochronolgy Original Research Article

The discovery of the highly r-process-enhanced, extremely metal-poor star, CS 31082-001 ([Fe/H] = −2.9) has provided a powerful new tool for age determination, by virtue of the detection and measurement of the radioactive species uranium and thorium. We determine the lower limit on the age of the universe by comparison of the nucleosynthesis results based on the “neutrino wind” scenario with the available spectroscopic elemental abundance data of CS 31082-001.