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首页> 外文期刊>The Astrophysical journal >THE INFLUENCE OF ACCRETION RATE AND METALLICITY ON THERMONUCLEAR BURSTS: PREDICTIONS FROM KEPLER MODELS
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THE INFLUENCE OF ACCRETION RATE AND METALLICITY ON THERMONUCLEAR BURSTS: PREDICTIONS FROM KEPLER MODELS

机译:增长率和金属化对热核爆裂的影响:从开普勒模型的预测

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摘要

Using the KEPLER hydrodynamics code, 464 models of thermonuclear X-ray bursters were performed across a range of accretion rates and compositions. We present the library of simulated burst profiles from this sample, and examine variations in the simulated light curve for different model conditions. We find that the recurrence time varies as a power law against accretion rate, and measure its slope while mixed H/He burning is occurring for a range of metallicities, finding the power law gradient to vary from to 1.24. We identify the accretion rates at which mixed H/He burning stops and a transition occurs to different burning regimes. We explore how varying the accretion rate and metallicity affects burst morphology in both the rise and tail.
机译:使用KEPLER流体力学代码,在各种吸积率和组成范围内执行了464个模型的热核X射线爆发器。我们提供了来自该样本的模拟爆炸轮廓库,并检查了不同模型条件下模拟光曲线的变化。我们发现,递归时间随幂定律相对于吸积率的变化而变化,并在一定范围的金属性下发生混合H / He燃烧时测量其斜率,发现幂律梯度从到1.24不等。我们确定了混合H / He燃烧停止并向不同燃烧方式过渡时的吸积率。我们探索变化的吸积率和金属性如何影响上升和尾部的爆发形态。

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