MONTAGE: AGB nucleosynthesis with full s-process calculations

Abstract

We present MONTAGE, a post-processing nucleosynthesis code that combines a traditional network for isotopes lighter than calcium with a rapid algorithm for calculating the s-process nucleosynthesis of the heavier isotopes. The separation of those parts of the network where only neutron-capture and beta-decay reactions are significant provides a substantial advantage in computational efficiency. We present the yields for a complete set of s-process isotopes for a 3 Mo, Z = 0.02 stellar model, as a demonstration of the utility of the approach. Future work will include a large grid of models suitable for use in calculations of Galactic chemical evolution.

9 pages, 4 figures. Accepted by PASA

References in corpus (3)

• Evolution, nucleosynthesis and yields of low mass AGB stars
• Stellar Models and Yields of Asymptotic Giant Branch Stars
• Mass loss and yield uncertainty in low-mass asymptotic giant branch stars

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• Post-AGB stars in the SMC as tracers of stellar evolution: the extreme s-process enrichment of the 21 micrometer star J004441.04-732136.4
• Detailed abundance study of four s-process enriched post-AGB stars in the Large Magellanic Cloud
• Diagnostics of Stellar Modelling from Spectroscopy and Photometry of Globular Clusters