Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aipc..125..766m&link_type=abstract
AIP Conference Proceedings, Volume 125, pp. 766-773 (1985).
Astronomy and Astrophysics
Astrophysics
1
Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Radiative Capture
Scientific paper
We summarize results from a detailed parameter study of the s-process in models which produce an exponential distribution of exposures by sequential irradiations and dredge up in the stellar environment. The calculations are based on a complete network of measured and calculated neutron capture and beta-decay rates as well as estimates for their temperature dependence. In the framework of these models we identify and systematically vary the astrophysical variables which affect the observed solar-system σN (cross section times abundance) curve. Constraints are placed on the s-process neutron exposure and flux as well as the temperatures, densities, neutron pulse shape and inter-pulse period. The results also highlight important needs for better nuclear data in various mass regions.
Howard Michael W.
Mathews Grant J.
Takahashi Keitaro
Ward Richard A.
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