S-Process abundances for Tellurium-122, 123, 124

Details S-Process abundances for Tellurium-122, 123, 124 S-Process abundances for Tellurium-122, 123, 124

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...434..695d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 434, no. 2, p. 695-697

Astronomy and Astrophysics

Astrophysics

2

Abundance, Helium, Nuclear Fusion, Red Giant Stars, Stellar Temperature, Tellurium Isotopes, Antimony Isotopes, Neutron Cross Sections, Stellar Evolution, Tin Isotopes

Scientific paper

The three s-only isotopes of tellurium, Te-122, 123, 124 provide a unique opportunity to investigate s-process systematics, including the 'local approximation,' the estimation of the temperature and neutron density during helium burning in red giant stars, and p-process contributions in the mass region. Recent accurate measurements of the neutron capture cross sections of key isotopes in this mass region have enabled an improved analysis of the s-process flow. The absence of absolute isotope abundance determinations for tellurium introduces additional uncertainties into the s-process calculations and constrains the conclusions which can be made with respect to p-process contributions for the tellurium isotopes. An improved set of isotopic data for tellurium is provided as a basis for future s-process analyses until such time as the absolute isotopic composition of tellurium is established.

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