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Title: Nucleosynthesis in neutrino-driven, aspherical supernovae of population III stars

Abstract

We examine explosive nucleosynthesis during neutrino-driven, aspherical supernovae of Population III stars, based on two-dimensional (2D) hydrodynamic simulations of the explosion of 11-40M{sub Circled-Dot-Operator} stars with zero metallicity. The magnitude and asymmetry of the explosion energy are estimated with the simulations. By post-processing calculations with a large nuclear reaction network, we have evaluated abundances and masses of ejecta from the aspherical SNe. We find that the evaluated abundance patterns are similar to those observed in extremely metal poor stars, as shown in spherical and 2D models, in which the explosion is manually and spherically initiated. Matter mixing induced via standing accretion shock instability is important for the abundances and masses of the SN ejecta.

Authors:
; ; ;  [1];  [2];  [2];  [2]
  1. Kumamoto National College of Technology, 2659-2 Suya, Goshi 861-1102 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22075793
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1484; Journal Issue: 1; Conference: Conference on origin of matter and evolution of galaxies 2011, Wako (Japan), 14-17 Nov 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASYMMETRY; ELEMENT ABUNDANCE; MASS; METALS; NEUTRINO REACTIONS; NEUTRINOS; NUCLEOSYNTHESIS; SPHERICAL CONFIGURATION; STAR ACCRETION; SUPERNOVA REMNANTS; SUPERNOVAE; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Fujimoto, Shin-ichiro, Hashimoto, Masa-aki, Ono, Masaomi, Kotake, Kei, Department of Physics, School of Sciences, Kyushu University, Fukuoka 810-8560, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, and National Astronomical Observatory Japan, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588. Nucleosynthesis in neutrino-driven, aspherical supernovae of population III stars. United States: N. p., 2012. Web. doi:10.1063/1.4763457.
Fujimoto, Shin-ichiro, Hashimoto, Masa-aki, Ono, Masaomi, Kotake, Kei, Department of Physics, School of Sciences, Kyushu University, Fukuoka 810-8560, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, & National Astronomical Observatory Japan, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588. Nucleosynthesis in neutrino-driven, aspherical supernovae of population III stars. United States. doi:10.1063/1.4763457.
Fujimoto, Shin-ichiro, Hashimoto, Masa-aki, Ono, Masaomi, Kotake, Kei, Department of Physics, School of Sciences, Kyushu University, Fukuoka 810-8560, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, and National Astronomical Observatory Japan, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588. Mon . "Nucleosynthesis in neutrino-driven, aspherical supernovae of population III stars". United States. doi:10.1063/1.4763457.
@article{osti_22075793,
title = {Nucleosynthesis in neutrino-driven, aspherical supernovae of population III stars},
author = {Fujimoto, Shin-ichiro and Hashimoto, Masa-aki and Ono, Masaomi and Kotake, Kei and Department of Physics, School of Sciences, Kyushu University, Fukuoka 810-8560 and Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 and National Astronomical Observatory Japan, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588},
abstractNote = {We examine explosive nucleosynthesis during neutrino-driven, aspherical supernovae of Population III stars, based on two-dimensional (2D) hydrodynamic simulations of the explosion of 11-40M{sub Circled-Dot-Operator} stars with zero metallicity. The magnitude and asymmetry of the explosion energy are estimated with the simulations. By post-processing calculations with a large nuclear reaction network, we have evaluated abundances and masses of ejecta from the aspherical SNe. We find that the evaluated abundance patterns are similar to those observed in extremely metal poor stars, as shown in spherical and 2D models, in which the explosion is manually and spherically initiated. Matter mixing induced via standing accretion shock instability is important for the abundances and masses of the SN ejecta.},
doi = {10.1063/1.4763457},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1484,
place = {United States},
year = {2012},
month = {11}
}