Light element production in type Ic supernovae

Toshikazu Shigeyama, Ko Nakamura, Shinya Wanajo, Susumu Inoue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We discuss production of light elements (Li, Be) in energetic type Ic supernovae (SNe Ic) and how newly synthesized light elements are transferred to stars of the next generation. We have pointed out that spallation reactions involving N and He become important in an explosion of a rotating metal-poor star if the progenitor still keeps a fraction of the He layer at SN explosion. In this kind of explosions, 6Li is produced by a fusion reaction He+He. Simultaneously, most of Be is produced through the spallation reaction He+N. This scenario suggests that there must be intrinsic scattering in abundance of Li isotopic ratios among metal-poor stars because the mass range of stars concerned here is limited to ≳ 40 M and light element yields should be sensitive to the degree of rotation.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages105-110
Number of pages6
Volume847
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology - Tokyo
Duration: 2005 Nov 82005 Nov 11

Other

OtherORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology
CityTokyo
Period05/11/805/11/11

Keywords

  • Light elements
  • Population II stars
  • Supernovae

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Shigeyama, T., Nakamura, K., Wanajo, S., & Inoue, S. (2006). Light element production in type Ic supernovae. In AIP Conference Proceedings (Vol. 847, pp. 105-110) https://doi.org/10.1063/1.2234390