Nucleosynthesis in neutrino-driven, aspherical supernova explosion of a massive star

S. Fujimoto; M. Hashimoto; M. Ono; K. Kotake; N. Ohnishi

doi:10.1063/1.3628410

Nucleosynthesis in neutrino-driven, aspherical supernova explosion of a massive star

S. Fujimoto, M. Hashimoto, M. Ono, K. Kotake, N. Ohnishi

Experimental Particle Physics

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

Abstract

We examine explosive nucleosynthesis of p-nuclei during a delayed neutrino-driven, aspherical supernova explosion aided by standing accretion shock instability, based on two-dimensional hydrodynamic simulations of the explosion of a 15M_⊙ star. We find that p-nuclei are mainly produced through γ-processes, and that the nuclei lighter than ⁹²Mo are abundantly synthesized in slightly neutron-rich bubbles with electron fractions of Y_e≤0.48. ⁹⁴Mo, ⁹⁶Ru, and ⁹⁸Ru, are underproduced compared with the solar system, as in the spherical model.

Original language	English
Title of host publication	Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3
Pages	353-355
Number of pages	3
DOIs	https://doi.org/10.1063/1.3628410
Publication status	Published - Nov 24 2011
Event	3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3 - Rhodes, Greece Duration: Aug 23 2010 → Aug 27 2010

Publication series

Name	AIP Conference Proceedings
Volume	1377
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3
Country	Greece
City	Rhodes
Period	8/23/10 → 8/27/10

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1063/1.3628410

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Fujimoto, S., Hashimoto, M., Ono, M., Kotake, K., & Ohnishi, N. (2011). Nucleosynthesis in neutrino-driven, aspherical supernova explosion of a massive star. In Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3 (pp. 353-355). (AIP Conference Proceedings; Vol. 1377). https://doi.org/10.1063/1.3628410

Fujimoto, S, Hashimoto, M, Ono, M, Kotake, K & Ohnishi, N 2011, Nucleosynthesis in neutrino-driven, aspherical supernova explosion of a massive star. in Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3. AIP Conference Proceedings, vol. 1377, pp. 353-355, 3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3, Rhodes, Greece, 8/23/10. https://doi.org/10.1063/1.3628410

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abstract = "We examine explosive nucleosynthesis of p-nuclei during a delayed neutrino-driven, aspherical supernova explosion aided by standing accretion shock instability, based on two-dimensional hydrodynamic simulations of the explosion of a 15M⊙ star. We find that p-nuclei are mainly produced through γ-processes, and that the nuclei lighter than 92Mo are abundantly synthesized in slightly neutron-rich bubbles with electron fractions of Ye≤0.48. 94Mo, 96Ru, and 98Ru, are underproduced compared with the solar system, as in the spherical model.",

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AU - Ohnishi, N.

PY - 2011/11/24

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