On the Application of Differential Evolution to the Analysis of X-Ray Spectra
On the Application of Differential Evolution to the Analysis of X-Ray Spectra
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DOI：
10.3847/1538-4357/ac4aec
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发表时间：
2022-02
期刊：
影响因子：
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通讯作者：
A. Kępa;B. Sylwester;M. Siarkowski;J. Sylwester
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文献类型：
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作者：
A. Kępa;B. Sylwester;M. Siarkowski;J. Sylwester
利用微分进化(DE)的方法，确定了2003年1月21日等离子体耀斑的日冕元素丰度和微分发射测量(DEM)分布。并根据RESIK X射线能谱进行了分析。De属于进化算法家族。它概念简单，易于实现，已被应用于解决科学和工程中的许多问题。在这项研究中，我们将这种方法应用于一种新的背景下：同时测定血浆成分和DEM。为了增加使用DE获得的结果的置信度，我们通过将合成的DE与RESIK观察到的各自的光谱进行比较来测试其算法的使用。对所用的DE方法和获得的耀斑等离子体的物理特性进行了广泛的讨论。
Using methods of differential evolution (DE), we determined the coronal elemental abundances and the differential emission measure (DEM) distributions for the plasma flaring on 2003 January 21. The analyses have been made based on RESIK X-ray spectra. DE belongs to the family of evolutionary algorithms. DE is conceptually simple and easy to implement, so it has been applied to solve many problems in science and engineering. In this study we apply this method in a new context: simultaneous determination of plasma composition and DEM. In order to increase the confidence of the results obtained using DE, we tested the use of its algorithms by comparing the DE synthesized with respective spectra observed by RESIK. Extensive discussion of the DE method used and the obtained physical characteristics of flaring plasma is presented.