articleThe Astrophysical JournalSep 1, 2020BRONZE OA

The Origin of Elements from Carbon to Uranium

CKChiaki KobayashiAIAmanda I. KarakasMLMaria Lugaro

University of Hertfordshire · ASTRO-3D · +6 more institutions

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Abstract

Abstract To reach a deeper understanding of the origin of elements in the periodic table, we construct Galactic chemical evolution (GCE) models for all stable elements from C ( A = 12) to U ( A = 238) from first principles, i.e., using theoretical nucleosynthesis yields and event rates of all chemical enrichment sources. This enables us to predict the origin of elements as a function of time and environment. In the solar neighborhood, we find that stars with initial masses of M > 30 M ⊙ can become failed supernovae if there is a significant contribution from hypernovae (HNe) at M ∼ 20–50 M ⊙ . The contribution to GCE from super-asymptotic giant branch (AGB) stars (with M ∼ 8–10 M ⊙ at solar metallicity) is…

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Topics & keywords

Topics
Keywords
  • Physics
  • Nucleosynthesis
  • Astrophysics
  • Supernova
  • Asymptotic giant branch
  • Stars
  • White dwarf
  • Metallicity
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