Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae

Nobuya Nishimura; Masa Aki Hahimoto; Shin Ichirou Fujimoto; Kei Kotake; Shoichi Yamada

doi:10.1063/1.2234456

Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae

Nobuya Nishimura^*, Masa Aki Hahimoto, Shin Ichirou Fujimoto, Kei Kotake, Shoichi Yamada

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

For the rst time heavy element nucleosynthesis in the magneto- hydrodynamical (MHD) explosions of core-collapse supernovae are investigated using a massive star of 13M_⊙ in a main sequence stage. Contrary to the case of the spherical explosion, jet-like explosion due to the combined effects of the rotation and magnetic eld lowers the electron fraction signicantly inside the layers above the Fe-core. Then, the anisotropic shock waves pass through the oxygen rich layers. As a consequence, we nd that the nucleosynthesis of the r- and p-process proceeds appreciably compared to the models previously considered.

Original language	English
Title of host publication	ORIGIN OF MATTER AND EVOLUTION OF GALAXIES
Subtitle of host publication	International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology
Pages	452-454
Number of pages	3
DOIs	https://doi.org/10.1063/1.2234456
Publication status	Published - 2006
Event	ORIGIN 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, Japan Duration: 2005 Nov 8 → 2005 Nov 11

Publication series

Name	AIP Conference Proceedings
Volume	847
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology
Country/Territory	Japan
City	Tokyo
Period	05/11/8 → 05/11/11

Keywords

Stars: evolution
Stars: magneticelds
Stars: nuclear reactions, nucleosynthesis, abundances
Supernova: general

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.2234456

Cite this

Nishimura, N., Hahimoto, M. A., Fujimoto, S. I., Kotake, K., & Yamada, S. (2006). Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae. In ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology (pp. 452-454). (AIP Conference Proceedings; Vol. 847). https://doi.org/10.1063/1.2234456

Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae. / Nishimura, Nobuya; Hahimoto, Masa Aki; Fujimoto, Shin Ichirou et al.

ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology. 2006. p. 452-454 (AIP Conference Proceedings; Vol. 847).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishimura, N, Hahimoto, MA, Fujimoto, SI, Kotake, K & Yamada, S 2006, Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae. in ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology. AIP Conference Proceedings, vol. 847, pp. 452-454, ORIGIN 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, Japan, 05/11/8. https://doi.org/10.1063/1.2234456

Nishimura N, Hahimoto MA, Fujimoto SI, Kotake K, Yamada S. Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae. In ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology. 2006. p. 452-454. (AIP Conference Proceedings). doi: 10.1063/1.2234456

Nishimura, Nobuya ; Hahimoto, Masa Aki ; Fujimoto, Shin Ichirou et al. / Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae. ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology. 2006. pp. 452-454 (AIP Conference Proceedings).

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abstract = "For the rst time heavy element nucleosynthesis in the magneto- hydrodynamical (MHD) explosions of core-collapse supernovae are investigated using a massive star of 13M⊙ in a main sequence stage. Contrary to the case of the spherical explosion, jet-like explosion due to the combined effects of the rotation and magnetic eld lowers the electron fraction signicantly inside the layers above the Fe-core. Then, the anisotropic shock waves pass through the oxygen rich layers. As a consequence, we nd that the nucleosynthesis of the r- and p-process proceeds appreciably compared to the models previously considered.",

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AU - Kotake, Kei

AU - Yamada, Shoichi

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AB - For the rst time heavy element nucleosynthesis in the magneto- hydrodynamical (MHD) explosions of core-collapse supernovae are investigated using a massive star of 13M⊙ in a main sequence stage. Contrary to the case of the spherical explosion, jet-like explosion due to the combined effects of the rotation and magnetic eld lowers the electron fraction signicantly inside the layers above the Fe-core. Then, the anisotropic shock waves pass through the oxygen rich layers. As a consequence, we nd that the nucleosynthesis of the r- and p-process proceeds appreciably compared to the models previously considered.

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Heavy element nucleosynthesis in the MHD jet explosions of core-collapse supernovae

Abstract

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