15O(alpha,gamma)19Ne breakout reaction and impact on X-ray bursts.
15O(alpha,gamma)19Ne breakout reaction and impact on X-ray bursts.
复制标题
15O(α,γ)19Ne爆发反应及其对X射线爆发的影响。
DOI：
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发表时间：
2007
影响因子：
8.6
通讯作者：
M. Wiescher
中科院分区：
文献类型：
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作者：
Wanpeng Tan;J. Fisker;J. Görres;M. Couder;M. Wiescher
爆发反应15O（α，γ）19 Ne，它调节热CNO循环和rp过程之间的流动，是解释X射线爆发的爆发幅度和周期性的关键。我们报告的第一次成功测量的临界α衰变分支比的相关国家在19 Ne通过19 F（3He，t）19 Ne填充。根据实验结果和我们以前对这些态的寿命测量，我们得到了15O（α，γ）19Ne的第一个实验速率。我们的实验结果的爆发模式和周期性的吸积率范围内的影响进行了分析。
The breakout reaction 15O(alpha,gamma)19Ne, which regulates the flow between the hot CNO cycle and the rp process, is critical for the explanation of the burst amplitude and periodicity of x-ray bursters. We report on the first successful measurement of the critical alpha-decay branching ratios of relevant states in 19Ne populated via 19F(3He,t)19Ne. Based on the experimental results and our previous lifetime measurements of these states, we derive the first experimental rate of 15O(alpha,gamma)19Ne. The impact of our experimental results on the burst pattern and periodicity for a range of accretion rates is analyzed.