THE SPECTRUM OF Fe ii
THE SPECTRUM OF Fe ii
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Fe ii 的光谱
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
S. Johansson
中科院分区：
文献类型：
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作者：
G. Nave;S. Johansson
用高分辨傅里叶变换和光栅光谱技术在900 nm ~ 5.5 μm波长范围内记录了单电离铁（Fe Ⅱ）的光谱。在高电流连续和脉冲空心阴极放电中使用FT光谱仪在基特峰国家天文台，图森，亚利桑那州和帝国理工学院，伦敦和10.7米正常入射光谱仪在国家标准与技术研究所观察到的光谱。大约12，900条谱线被分类，使用1027个Fe ii能级，这些能级被优化以测量波数。FT光谱中谱线的波数不确定度范围从4 μm附近强谱线的10−4 cm−1到1500 μ m附近弱谱线的0.05 cm−1。光栅谱线的波长不确定度为0.005 μ m。由3d 6（5D）5g和3d 6（5D）6 h能级估算出电离能为（130，655.4 ± 0.4）cm−1。
The spectrum of singly ionized iron (Fe ii) has been recorded using high-resolution Fourier transform (FT) and grating spectroscopy over the wavelength range 900 Å to 5.5 μm. The spectra were observed in high-current continuous and pulsed hollow cathode discharges using FT spectrometers at the Kitt Peak National Observatory, Tucson, AZ and Imperial College, London and with the 10.7 m Normal Incidence Spectrograph at the National Institute of Standards and Technology. Roughly 12,900 lines were classified using 1027 energy levels of Fe ii that were optimized to measured wavenumbers. The wavenumber uncertainties of lines in the FT spectra range from 10−4 cm−1 for strong lines around 4 μm to 0.05 cm−1 for weaker lines around 1500 Å. The wavelength uncertainty of lines in the grating spectra is 0.005 Å. The ionization energy of (130,655.4 ± 0.4) cm−1 was estimated from the 3d6(5D)5g and 3d6(5D)6h levels.