PyNeb原子数据评估:[Fe-ii]和[Fe-iii]的辐射和电子碰撞激发率

IF 1.7 Q3 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL Atoms Pub Date : 2023-04-01 DOI:10.3390/atoms11040063
C. Mendoza, J. E. Méndez-Delgado, M. Bautista, J. García-Rojas, C. Morisset
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引用次数: 1

摘要

我们使用PyNeb 1.1.16 Python软件包来评估可用于[Fe-ii]和[Fe-iii]光谱建模的原子数据集,其中列出了能级能量、A值和有效碰撞强度。大多数数据集都是从来源重建的,并将新的数据集与观测和测量的基准进行比较。对于[Fe ii],我们得出了结论性的结果,使我们能够选择默认数据集,而对于[Fe ii],对碰撞数据的明显温度依赖性成为一种威慑。这种依赖性主要是由于3d7a4F9/2亚稳态能级的临界密度非常低,这在很大程度上取决于辐射和碰撞数据,尽管不能排除由恒星连续体的荧光泵浦填充的能级。PyNeb的新版本(1.1.17)发布,其中包含评估的数据集。
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Atomic Data Assessment with PyNeb: Radiative and Electron Impact Excitation Rates for [Fe ii] and [Fe iii]
We use the PyNeb 1.1.16 Python package to evaluate the atomic datasets available for the spectral modeling of [Fe ii] and [Fe iii], which list level energies, A-values, and effective collision strengths. Most datasets are reconstructed from the sources, and new ones are incorporated to be compared with observed and measured benchmarks. For [Fe iii], we arrive at conclusive results that allow us to select the default datasets, while for [Fe ii], the conspicuous temperature dependency on the collisional data becomes a deterrent. This dependency is mainly due to the singularly low critical density of the 3d7a4F9/2 metastable level that strongly depends on both the radiative and collisional data, although the level populating by fluorescence pumping from the stellar continuum cannot be ruled out. A new version of PyNeb (1.1.17) is released containing the evaluated datasets.
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来源期刊
Atoms
Atoms Physics and Astronomy-Nuclear and High Energy Physics
CiteScore
2.70
自引率
22.20%
发文量
128
审稿时长
8 weeks
期刊介绍: Atoms (ISSN 2218-2004) is an international and cross-disciplinary scholarly journal of scientific studies related to all aspects of the atom. It publishes reviews, regular research papers, and communications; there is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles. There are, in addition, unique features of this journal: -manuscripts regarding research proposals and research ideas will be particularly welcomed. -computed data, program listings, and files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Scopes: -experimental and theoretical atomic, molecular, and nuclear physics, chemical physics -the study of atoms, molecules, nuclei and their interactions and constituents (protons, neutrons, and electrons) -quantum theory, applications and foundations -microparticles, clusters -exotic systems (muons, quarks, anti-matter) -atomic, molecular, and nuclear spectroscopy and collisions -nuclear energy (fusion and fission), radioactive decay -nuclear magnetic resonance (NMR) and electron spin resonance (ESR), hyperfine interactions -orbitals, valence and bonding behavior -atomic and molecular properties (energy levels, radiative properties, magnetic moments, collisional data) and photon interactions
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