Hyperfine structure constants for neutral and singly ionized manganese using Fourier transform spectra

IF 1.5 4区物理与天体物理 Q3 OPTICS

The European Physical Journal D Pub Date : 2025-01-08 DOI:10.1140/epjd/s10053-024-00945-0

Hongfeng Zheng, Die Fang, Liguang Jiao, Xiaolei Che, Zhenwen Dai

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Abstract

We utilized the archival data recorded by the Fourier transform spectrometer at the USA National Solar Observatory to investigate the hyperfine structure (HFS) for neutral manganese (Mn I) and singly ionized manganese (Mn II) levels. HFS constants for 25 levels of Mn I between 24,779 cm⁻¹ and 62,671 cm⁻¹ and, those for 14 levels of Mn II between 38,366 cm⁻¹ and 99,893 cm⁻¹ were determined by analyzing 100 spectral lines, among which the results for 15 levels of Mn I and eight levels of Mn II are reported for the first time, to our best knowledge. This increases the total number of levels with experimental HFS constants to 182 for Mn I and 116 for Mn II. For two Mn I levels and one Mn II level, both magnetic dipole HFS constants A and electric quadrupole HFS constants B were obtained. For the other levels, only A constants were determined. The uncertainties of most of the HFS constants determined in this work are less than 10%.

Graphical abstract

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用傅里叶变换光谱研究中性和单离子锰的超精细结构常数

利用美国国家太阳天文台的傅里叶变换光谱仪记录的档案数据，研究了中性锰（Mn I）和单离子锰（Mn II）水平的超精细结构（HFS）。通过对100条谱线的分析，确定了25个水平Mn I （24,779 cm−1 ~ 62,671 cm−1）和14个水平Mn II （38,366 cm−1 ~ 99,893 cm−1）的HFS常数，其中15个水平Mn I和8个水平Mn II的结果为首次报道。这使得具有实验HFS常数的Mn I和Mn II的能级总数分别增加到182和116。对于两个Mn I能级和一个Mn II能级，得到磁偶极子HFS常数A和电四极子HFS常数B。对于其他能级，只确定了A常数。本工作确定的大部分HFS常数的不确定度小于10%。图形抽象

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来源期刊

The European Physical Journal D 物理-物理：原子、分子和化学物理

CiteScore

3.10

自引率

11.10%

发文量

213

审稿时长

3 months

期刊介绍： The European Physical Journal D (EPJ D) presents new and original research results in: Atomic Physics; Molecular Physics and Chemical Physics; Atomic and Molecular Collisions; Clusters and Nanostructures; Plasma Physics; Laser Cooling and Quantum Gas; Nonlinear Dynamics; Optical Physics; Quantum Optics and Quantum Information; Ultraintense and Ultrashort Laser Fields. The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.