论文标题
收费交换，从天空到实验室：确定状态选择性横截面以改进建模的方法
Charge exchange, from the sky to the laboratory: A method to determine state-selective cross-sections for improved modeling
论文作者
论文摘要
电荷交换（CX）是一个半共振的重组过程，可以导致X射线频带中的光谱线发射。它几乎发生在热等离子体和冷气相互作用的任何环境中：在太阳系，彗星和行星大气中，可能在天体物理上，例如超新星残留物和星系簇。它也有助于软X射线背景。因此，CX的准确光谱建模对于正确解释我们的天体物理观测值至关重要，但是流行光谱拟合包装中常用的CX模型通常依赖于缩放方程，并且可能无法准确描述观察值或实验室测量。本文介绍了一种可以应用于高分辨率CX光谱的方法，以直接提取状态选择性CX横截面以进行电子捕获，这是正确模拟所得CX频谱的关键参数。
Charge exchange (CX) is a semi-resonant recombination process that can lead to spectral line emission in the X-ray band. It occurs in nearly any environment where hot plasma and cold gas interact: in the solar system, in comets and planetary atmospheres, and likely astrophysically, in, for example, supernova remnants and galaxy clusters. It also contributes to the soft X-ray background. Accurate spectral modeling of CX is thus critical to properly interpreting our astrophysical observations, but the commonly used CX models in popular spectral fitting packages often rely on scaling equations and may not accurately describe observations or laboratory measurements. This paper introduces a method that can be applied to high-resolution CX spectra to directly extract state-selective CX cross-sections for electron capture, a key parameter for properly simulating the resulting CX spectrum.
