2012 Fiscal Year Final Research Report
Study on explosion mechanism and explosive nucleosynthesis in aspherical core-collapse supernovae
| Project/Area Number |
22540297
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | National Institute of Technology, Kumamoto College |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KOTAKE Kei 国立天文台, 理論天文部, 助教 (20435506)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 宇宙物理 / 理論天文学 / 元素合成 / 超新星爆発 |
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| Research Abstract |
Based on simulations of aspherical explosion of core-collapse supernovae (SNe) of massive stars, we investigate abundances of SN ejecta. We find that abundances of ejecta from an SN of a star with the solar metallicity reproduce the solar composition, and that abundances of ejecta from SNe of zero-metal massive stars well reproduce observed abundances of the surface of metal-poor stars. Moreover, from SN simulations employed with newly-developed hydrodynamic code, in which heating via nuclear reactions are taken into account, we show that the nuclear heating are greater than or comparable to neutrino-heating.
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