论文标题
血浆环境对天体物理兴趣k线的影响III。 IP，K阈值，辐射率和Fe ix中的螺旋式宽度-Fe XVI
Plasma-environment effects on K lines of astrophysical interest III. IPs, K thresholds, radiative rates, and Auger widths in Fe ix - Fe xvi
论文作者
论文摘要
目标。在黑孔积聚磁盘的背景下，我们旨在计算血浆环境对中等带电的铁离子（即FE IX-FE ix-Fe XVI）中用于建模K胶状状态衰减的原子参数的影响。方法。我们使用了近似等离子电子核和电子电子筛选的完全相对论的多浓度dirac-fock（MCDF）方法，具有时间平均的Debye-huckel势。结果。我们报告了经过修改的电离电位，K阈值能量，波长，辐射率和螺旋式宽度的等离子体，其特征是电子温度和密度$ 10^5 $ - $ 10^7 $ k和$ 10^7 $ K和$ 10^{18} {18} $ 10^{18} $ - $ 10^{22^{22} $ cm $ cm $ cm $ cm $ cm $^3}结论。这项研究证实，由于未来的Xrism和Athena空间任务的高分辨率X射线光谱仪将能够检测由于在紧凑型物体周围的积聚磁盘中发生的极端血浆条件，因此可以检测这些离子的K边缘的降低。
Aims. In the context of black-hole accretion disks, we aim to compute the plasma-environment effects on the atomic parameters used to model the decay of K-vacancy states in moderately charged iron ions, namely Fe ix - Fe xvi. Methods. We used the fully relativistic multiconfiguration Dirac-Fock (MCDF) method approximating the plasma electron-nucleus and electron-electron screenings with a time-averaged Debye-Huckel potential. Results. We report modified ionization potentials, K-threshold energies, wavelengths, radiative emission rates, and Auger widths for plasmas characterized by electron temperatures and densities in the ranges $10^5$ - $10^7$ K and $10^{18}$ - $10^{22}$ cm$^{-3}$. Conclusions. This study confirms that the high-resolution X-ray spectrometers onboard the future XRISM and ATHENA space missions will be capable of detecting the lowering of the K edges of these ions due to the extreme plasma conditions occurring in accretion disks around compact objects.
