P-Process nucleosynthesis and the abundances of the minor isotopes of tin

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Abundance, Astrophysics, Nuclear Fusion, Photodecomposition, Tin Isotopes, Red Giant Stars, Spectrometers, Supernovae

Scientific paper

Tin has 10 isotopes, and the mode of production of these isotopes span the range of nucleosynthetic processes first proposed by Burbidge et al. (1957). A number of isotopic anomalies in the solar system have to be interpreted as primordial inhomogeneities, produced by incomplete mixing of the solar nebula. The quantitative classification of the minor tin isotopes according to the nucleosynthetic processes described by Ward and Beer (1981) is considered to be an essential prerequisite for deciphering possible isotopic anomalies which may provide a unique insight into the stellar conditions responsible for their production. No anomalies were found in an analysis of whole rock samples, whereas isotopic anomalies are now known to exist in inclusions of certain carbonaceous chondrites. A table listing the accurate isotopic abundances for the minor isotopes in terrestrial sample is presented. The data provide the basis for a study of cosmochemical isotopic anomalies in meteoritic materials.

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