微量热计时代的X射线光谱学I：Fe XXIV共振俄歇破坏对Fe XXV K $α$谱的影响
X-ray spectroscopy in the microcalorimeter era I: Effects of Fe XXIV Resonance Auger Destruction on Fe XXV K$α$ spectra
摘要：
我们讨论了在光学厚云中Fe $^{23+}$在确定Fe XXV K $α$络合物谱线强度中的重要性，并研究了Liedahl（2005）对有云共振俄歇破坏（RAD）的预测。虽然最初的动机英仙座集群，我们的计算扩展到广泛的列密度在天文学中遇到的。Fe XXV线光子在被三电子铁吸收后可以改变/失去其身份，这是“线联锁”的结果。这可能导致吸收离子的自电离，最终通过RAD破坏Fe XXV K $α$光子。在Fe XXV K $α$络合物中的四个成员中，显著部分的x线光子被Fe $^{23+}$吸收并被破坏，导致x线强度降低。例如，在10 $^{25}$ cm $^{-2}$的氢柱密度下，$\sim$ 32%的x光子由于RAD而被破坏，而w几乎不受影响。y的线强度略有降低（$\leq$ 2\%）。z不直接受RAD影响，但是z和x线强度之间的对比行为指向x光子的微小部分（$\sim$ 2\%）到z光子的可能转换。本文还讨论了快热电子散射逃逸（ESE）引起的谱线强度的变化。
英文摘要：
We discuss the importance of Fe$^{23+}$ in determining the line intensities of the Fe XXV K$α$ complex in an optically thick cloud, and investigate the prediction of Liedahl (2005) on Resonance Auger Destruction (RAD) with CLOUDY. Although initially motivated by the Perseus cluster, our calculations are extended to the wide range of column densities encountered in astronomy. A Fe XXV line photon can change/lose its identity upon absorption by three-electron iron as a result of "line interlocking". This may lead to the autoionization of the absorbing ion, ultimately destroying the Fe XXV K$α$ photon by RAD. Out of the four members in the Fe XXV K$α$ complex, a significant fraction of the x line photons is absorbed by Fe$^{23+}$ and destroyed, causing the x line intensity to decrease. For example, at a hydrogen column density of 10$^{25}$ cm$^{-2}$, $\sim$ 32\% of x photons are destroyed due to RAD while w is mostly unaffected. The line intensity of y is slightly ($\leq$2\%) reduced. z is not directly affected by RAD, but the contrasting behavior between z and x line intensities points towards the possible conversion of a tiny fraction ($\sim$ 2\%) of x photons into z photons. The change in line intensities due to Electron Scattering Escape (ESE) off fast thermal electrons is also discussed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
