Aspherical abundance distribution of ejecta from neutrino-driven core collapse supernova

Shinichiro Fujimoto, Kei Kotake, Masaaki Hashimoto, Masaomi Ono, Naofumi Ohnishi

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

Abstract

We examine explosive nucleosynthesis during a delayed neutrino-driven, supernova explosion aided by standing accretion shock instability, based on two-dimensional hydrodynamic simulations of the explosion of a 15 M⊙progenitor.We find that abundance pattern of the supernova ejecta is similar to that of the solar system, for cases with high explosion energies of ≃ 1051ergs. Aspherical distribution of Fe, Si, and O, which is observed in a nearby core-collapse SN remnant such as Cas A, is obtained in spite of the explosion of the non-rotating, spherical progenitor.

Original languageEnglish
Title of host publication10th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG10
Pages472-474
Number of pages3
DOIs
Publication statusPublished - 2010 Sep 21
Event10th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG10 - Osaka, Japan
Duration: 2010 Mar 82010 Mar 10

Publication series

NameAIP Conference Proceedings
Volume1269
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other10th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG10
CountryJapan
CityOsaka
Period10/3/810/3/10

Keywords

  • Abundances
  • MHD
  • Methods: Numerical
  • Nuclear reactions
  • Nucleosynthesis
  • Stars: Supernovae: General

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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