STELLAR YIELDS FROM METAL-RICH ASYMPTOTIC GIANT BRANCH MODELS

By A. Karakas, M. Lugaro. 2016

167 citations recorded by the source corpus.

We present new theoretical stellar yields and surface abundances for three grids of metal-rich asymptotic giant branch (AGB) models. Post-processing nucleosynthesis results are presented for stellar models with initial masses between 1 M☉ and 7.5 M☉ for Z = 0.007, and 1 M☉ and 8 M☉ for Z = 0.014 (solar) and Z = 0.03. We include stellar surface abundances as a function of thermal pulse on the AGB for elements from C to Bi and for a selection of isotopic ratios for elements up to Fe and Ni (e.g., / ), which can be obtained from observations of molecules in stars and from the laboratory analysis of meteoritic stardust grains. Ratios of elemental abundances of He/H, C/O, and N/O are also included, which are useful for direct comparison to observations of AGB stars and their progeny, including planetary nebulae. The integrated elemental stellar yields are presented for each model in the grid for hydrogen, helium, and all stable elements from C to Bi. Yields of Li are also included for intermediate-mass models with hot bottom burning. We present the first slow neutron-capture (s-process) yields for super solar metallicity AGB stars with Z = 0.03, and the first complete s-process yields for models more massive than 6 M☉ at all three metallicities.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/e2806165abab254b3859d1f89c0f1976617f0eca

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In Astronomy and Astrophysics

1. M. Limongi
2. A. Chieffi
3. C. Abia
4. N. Prantzos
5. S. Cristallo
6. R. Hirschi
7. A. Karakas
8. Stan Woosley

In Instrumentation

1. A. Chieffi
2. M. Limongi
3. C. Abia
4. S. Cristallo
5. A. Karakas

Citations in the corpus

• Chemical evolution with rotating massive star yields - I. The solar neighbourhood and the s-process elements (2018, background): “Nevertheless, apart from FRUITY, the only extensive AGB yields set available is that of Mt Stromlo group (hereafter MST; see Karakas & Lugaro (2016) and references therein for a recent up date).”