高能X射线光谱分析工具—SasalPy
High energy X-ray spectroscopy tools—SasalPy
郝明月 1梁贵云 2王凯 3毛俊捷4
作者信息
- 1. 河北大学,保定 071002;中国科学院国家天文台,北京 100101
- 2. 中国科学院国家天文台,北京 100101
- 3. 河北大学,保定 071002
- 4. 清华大学,北京 100084
- 折叠
摘要
等离子体模型是天文学家解析高能天体观测数据的重要工具,发展精确便利的等离子体模型有助于研究者高效的进行高能X射线光谱分析工作.在现有的SASAL等离子体模型的基础上进一步提出一种新的基于Python语言的高能X射线光谱分析工具包SasalPy,并从理论框架、功能性和差异性方面阐述SasalPy的可靠性和精确性.线辐射和连续辐射计算结果表明,原子参数如跃迁速率、碰撞强度等会对合成光谱产生明显地影响.以Capella星冕的体微分发射度为基础开展了三个温度的光谱合成应用,并通过与其他等离子体模型辐射损失结果的对比,说明SasalPy在X射线能段比较精确可靠.
Abstract
The plasma model is an important tool for astronomers to analyze the observation data of high-energy celestial bodies.The development of accurate and convenient plasma models is helpful for researchers to carry out high-energy X-ray spectroscopic analysis work efficiently.Based on the existing plasma model SASAL,a new high-energy X-ray spectroscopy toolkit SasalPy based on the Python language is further developed.The reliability and accuracy of SasalPy are explained from the aspects of theoretical framework,functionality,and differences.Calculation results of line and continuum radiation show that atomic parameters such as transition rates and collision strengths will significantly impact the synthetic spectrum.Based on the volume differential e-mission measure of the Capella corona,the application of three-temperature spectral synthesis was carried out.The comparison with the radiation loss results of other plasma models showed that SasalPy is more accurate and reliable in the X-ray energy range.
关键词
等离子体模型/高能X射线/线辐射/连续辐射/合成光谱/辐射损失Key words
Plasma model/High energy X-ray/Line emission/Continuum emission/Synthetic spectrum/Ra-diative loss引用本文复制引用
基金项目
中国科学院战略先导B专项(XDB34020205)
国家自然科学基金天文联合项目(U1931140)
计算物理重点实验室基金(6142A05210401)
出版年
2024
国家科技期刊平台
NSTL
万方数据