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The s Process: Nuclear Physics, Stellar Models, Observations
Franz Käppeler, Roberto Gallino, Sara Bisterzo +1
Nucleosynthesis in the s process takes place in the He burning layers of low mass AGB stars and during the He and C burning phases of massive stars. The s process contributes about…
The effect of r-process enhancement in binary CEMP-s/r stars
Sara Bisterzo, Roberto Gallino
About half of carbon and s-process enhanced metal-poor stars (CEMP-s) show a high r-process enrichment (CEMP-s/r), incompatible with a pure s-process contribution. CEMP-s stars are…
Low metallicity AGB models: H profile in the 13C-pocket and the effect on the s-process
S. Bisterzo, S. Cristallo
The 13C(a, n)16O reaction is the major neutron source in low mass asymptotic giant branch (AGB) stars, where the main and the strong s process components are synthesised. After a t…
The Role of Primary 16O as a Neutron Poison in AGB stars and Fluorine primary production at Halo Metallicities
R. Gallino, S. Bisterzo, S. Cristallo +1
The discovery of a historical bug in the s-post-process AGB code obtained so far by the Torino group forced us to reconsider the role of primary 16O in the 13C-pocket, produced by…
s-Process in Low Metallicity Stars. I. Theoretical Predictions
S. Bisterzo, R. Gallino, O. Straniero +2
A large sample of carbon enhanced metal-poor stars enriched in s-process elements (CEMP-s) have been observed in the Galactic halo. These stars of low mass (M ~ 0.9 Msun) are locat…