Nucleosynthesis in O-Ne-Mg Supernovae

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We have studied detailed nucleosynthesis in the shocked surface layers of an oxygen-neon-magnesium core collapse supernova with an eye to determining whether the conditions are suitable for r-process nucleosynthesis. We find no such conditions in an unmodified model, but do find overproduction of N=50 nuclei (previously seen in early neutron-rich neutrino winds) in amounts that, if ejected, would pose serious problems for Galactic chemical evolution.

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Hoffman, R D; Janka, H & Muller, B December 18, 2007.

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We have studied detailed nucleosynthesis in the shocked surface layers of an oxygen-neon-magnesium core collapse supernova with an eye to determining whether the conditions are suitable for r-process nucleosynthesis. We find no such conditions in an unmodified model, but do find overproduction of N=50 nuclei (previously seen in early neutron-rich neutrino winds) in amounts that, if ejected, would pose serious problems for Galactic chemical evolution.

Physical Description

PDF-file: 14 pages; size: 0.1 Mbytes

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  • Journal Name: The Astrophysical Journal Letters, vol. 676, no. 2, April 1, 2008, L127-L130; Journal Volume: 676; Journal Issue: 2

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  • Report No.: LLNL-JRNL-400005
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 944332
  • Archival Resource Key: ark:/67531/metadc894548

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  • December 18, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 30, 2016, 1:38 p.m.

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Hoffman, R D; Janka, H & Muller, B. Nucleosynthesis in O-Ne-Mg Supernovae, article, December 18, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc894548/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.