周期爆发子XB1323-619和GS1826-24：核燃烧状态的长期演变和与理论的比较
The periodic bursters XB1323-619 and GS1826-24: longterm evolution of the nuclear burning regime and comparison with theory
摘要：
大多数X射线爆发源并没有像预期的那样显示出随亮度增加的爆发率，但这在两个时钟爆发XB 1323 -619和GS 1826 -24中可以看到。我们提出了一个详细的调查，这两个来源的情况下，第一个来源，跨越18年。基于测量的爆发率，X射线光度，α参数和两个时间常数一般存在于爆发衰变，我们证明了rp核燃烧过程的重要性。与理论的详细比较表明，虽然在每个源的爆发率与理论值吻合良好，有一个以上的因素5的爆发率在一个给定的光度源之间的差异。我们发现，这是主要原因是，这两个源有显着不同的发射面积的中子星在非突发发射，一个因素往往被忽视。这个面积的变化可以解释大多数爆发源爆发率与光度的反比关系。
英文摘要：
The majority of X-ray burst sources do not display a burst rate that increases with luminosity as expected, but this is seen in the two clocked bursters XB1323-619 and GS1826-24. We present a detailed investigation of these two sources which in the case of the first source, spans 18 years. Based on measurements of the burst rate, X-ray luminosity, the alpha-parameter and the two time constants generally present in the burst decays, we demonstrate the importance of the rp nuclear burning process. A detailed comparison with theory shows that although the burst rate in each source agrees well with the theoretical value, there is a difference of more than a factor of 5 in the burst rate at a given luminosity between the sources. We show that the main reason for this is that the two sources have substantially different emitting areas on the neutron star in non-burst emission, a factor often neglected. Variation of this area may explain the inverse relation of burst rate with luminosity in the majority of burst sources.
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