Collapse velocity and prompt explosion for the presupernova model Ws15M(circle dot)

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	Collapse velocity and prompt explosion for the presupernova model Ws15M(circle dot)
	Luo, Zhi-Quan ; Liu, Men-Quan ; Peng, Qiu-He ; Xie, Zuo-Heng
	2006
发表期刊	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
ISSN	1009-9271
卷号	6 期号:4 页码:455-460
摘要	For the presupernova model Ws15M(.), we re-calculate the electron capture (EC) timescale and hydrodynamical (HD) timescale. We found that the EC timescale can be smaller than the HD timescale in the inner region of the collapse iron core at the moment immediately before the shock wave bounce. The change in these two timescales at the late stage of core collapse is expected to affect the collapse velocity. If the late-time collapse velocity is artificially increased by a small quantity, then prompt explosion of the supernova may happen. Further calculations are still needed to check the plausibility of the acceleration mechanism caused by the faster EC process.
关键词	star : supernova nuclear reaction nucleosynthesis
语种	英语
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:000239902800008
出版者	SCIENCE CHINA PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/3534
专题	中国科学院数学与系统科学研究院
通讯作者	Luo, Zhi-Quan
作者单位	1.China W Normal Univ, Inst Theoret Phys, Nanchong 637002, Peoples R China 2.Sichuan Univ, Dept Phys, Chengdu 610065, Peoples R China 3.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 4.Chinese Acad Sci, Inst Appl Math, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Luo, Zhi-Quan,Liu, Men-Quan,Peng, Qiu-He,et al. Collapse velocity and prompt explosion for the presupernova model Ws15M(circle dot)[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(4):455-460.
APA	Luo, Zhi-Quan,Liu, Men-Quan,Peng, Qiu-He,&Xie, Zuo-Heng.(2006).Collapse velocity and prompt explosion for the presupernova model Ws15M(circle dot).CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(4),455-460.
MLA	Luo, Zhi-Quan,et al."Collapse velocity and prompt explosion for the presupernova model Ws15M(circle dot)".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.4(2006):455-460.