| 超新星的前身星阶段fp壳层的电子俘获 |
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| 引用本文： | 罗志全,刘门全,林理彬,彭秋和.超新星的前身星阶段fp壳层的电子俘获[J].中国物理 B,2005,14(6):1272-1275. |
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| 作者姓名： | 罗志全 刘门全 林理彬 彭秋和 |
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| 作者单位： | Department of Physics, Sichuan University, Chengdu 610065, China；Institute of Theoretical physics, China West Normal University, Nanchong 637002, China;Institute of Theoretical physics, China West Normal University, Nanchong 637002, China;Department of Physics, Sichuan University, Chengdu 610065, China;Department of Astronomy, Nanjing University, Nanjing 210093, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No.10347008) |
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| 摘 要： | 基于核的壳层模型，本文讨论了大质量恒星的超新星前身星阶段核的fp壳层电子俘获，分析中引入了一高斯函数来表征Gamow-Teller跃迁强度分布，结果表明，由于这一修正，在高密度下，电子俘获率较前人给出的结果有较大幅度的增加。
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| 关 键 词： | 电子俘获 核合成 超新星 |
| 收稿时间： | 2004-10-14 |
| 修稿时间： | 2/7/2005 12:00:00 AM |
Electron capture in fp shell at presupernova stage |
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| Luo Zhi-Quan,Liu Men-Quan,Lin Li-Bin and Peng Qiu-He.Electron capture in fp shell at presupernova stage[J].Chinese Physics B,2005,14(6):1272-1275. |
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| Authors: | Luo Zhi-Quan Liu Men-Quan Lin Li-Bin and Peng Qiu-He |
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| Institution: | Department of Astronomy, Nanjing University, Nanjing 210093, China; Department of Physics, Sichuan University, Chengdu 610065, China; Department of Physics, Sichuan University, Chengdu 610065, China；Institute of Theoretical physics, China West Normal University, Nanchong 637002, China; Institute of Theoretical physics, China West Normal University, Nanchong 637002, China |
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| Abstract: | The electron capture of neutron-rich nuclei in fp shell in massive stars at presupernova stage is discussed based on the nuclear shell model. The Gamow-Teller resonance transition strength is modified by introducing a Gaussian function. As a result, the electron capture rate in high density is evidently larger than the previous results given by some authors. |
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| Keywords: | electron capture nucleosynthesis supernova |
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