Collapse velocity and prompt explosion for the presupernova model Ws15M(circle dot) | |
Luo, Zhi-Quan; Liu, Men-Quan; Peng, Qiu-He; Xie, Zuo-Heng | |
刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS |
2006 | |
卷号 | 6期号:4页码:455-460 |
关键词 | star : supernova nuclear reaction nucleosynthesis |
ISSN号 | 1009-9271 |
英文摘要 | 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. |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | SCIENCE CHINA PRESS |
WOS记录号 | WOS:000239902800008 |
内容类型 | 期刊论文 |
源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/3533] |
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. |
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