Type Ia Supernova Nucleosynthesis: Metallicity-dependent Yields

Journal Article · 21 August 2023 · The Astrophysical Journal. Supplement Series

DOI: https://doi.org/10.3847/1538-4365/ace102 · OSTI ID:1996305

Keegans, James D. ; Pignatari, Marco ; Stancliffe, Richard J. ; Travaglio, Claudia; Jones, Samuel ; Gibson, Brad K. ; Townsley, Dean M. ; Miles, Broxton J. ; Shen, Ken J. ; Few, Gareth

Abstract Type Ia supernova explosions (SN Ia) are fundamental sources of elements for the chemical evolution of galaxies. They efficiently produce intermediate-mass (with Z between 11 and 20) and iron group elements—for example, about 70% of the solar iron is expected to be made by SN Ia. In this work, we calculate complete abundance yields for 39 models of SN Ia explosions, based on three progenitors—a 1.4 M _⊙ deflagration detonation model, a 1.0 M _⊙ double detonation model, and a 0.8 M _⊙ double detonation model—and 13 metallicities, with ²² Ne mass fractions of 0, 1 × 10 ⁻⁷ , 1 × 10 ⁻⁶ , 1 × 10 ⁻⁵ , 1 × 10 ⁻⁴ , 1 × 10 ⁻³ , 2 × 10 ⁻³ , 5 × 10 ⁻³ , 1 × 10 ⁻² , 1.4 × 10 ⁻² , 5 × 10 ⁻² , and 0.1, respectively. Nucleosynthesis calculations are done using the NuGrid suite of codes, using a consistent nuclear reaction network between the models. Complete tables with yields and production factors are provided online at Zenodo:Yields ( https://doi.org/10.5281/zenodo.8060323 ). We discuss the main properties of our yields in light of the present understanding of SN Ia nucleosynthesis, depending on different progenitor mass and composition. Finally, we compare our results with a number of relevant models from the literature.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: National Science Foundation (NSF); Science and Technology Facilities Council (STFC); USDOE; USDOE National Nuclear Security Administration (NNSA)
• Contributing Organization: NuGrid Collaboration
• Grant/Contract Number: 89233218CNA000001
• OSTI ID: 1996305
• Report Number(s): LA-UR-23-24784
• Journal Information: The Astrophysical Journal. Supplement Series, Journal Name: The Astrophysical Journal. Supplement Series Journal Issue: 1 Vol. 268; ISSN 0067-0049
• Publisher: American Astronomical SocietyCopyright Statement
• Country of Publication: United States
• Language: English