On the origin and evolution of s-process elements

Details On the origin and evolution of s-process elements On the origin and evolution of s-process elements

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...193..151s&link_type=abstract

Astrophysical Journal, vol. 193, Oct. 1, 1974, pt. 1, p. 151-155.

Computer Science

Numerical Analysis

15

Abundance, Astronomical Models, Galactic Evolution, Nuclear Fusion, Solar System, Stellar Evolution, Chemical Elements, Interstellar Matter, Mathematical Models, Milky Way Galaxy, Numerical Analysis

Scientific paper

The evolution of s-process abundances in the solar neighborhood is studied, using alternative stellar production sites and galactic models. Production in either low-mass or medium-mass stars, as suggested in Ulrich's alternative models for FG Sge for example, can account for the solar-system abundances. Either case is consistent with independent limits on subsequent neutron exposure of nuclei produced in explosive oxygen and silicon burning and of r-process material. The cases could be distinguished by observations of the ratios of s-process to primary metal abundances in stars of different ages. The predictions are not strongly dependent on the model used for galactic evolution.

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