Accurately Measured Wavelengths of Zn I and Zn II Lines of Astrophysical Interest
Accurately Measured Wavelengths of Zn I and Zn II Lines of Astrophysical Interest
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准确测量具有天体物理学意义的 Zn I 和 Zn II 线的波长
DOI：
10.1238/physica.regular.061a00652
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发表时间：
2000
期刊：
影响因子：
2.9
通讯作者：
U. Litzén
中科院分区：
文献类型：
--
作者：
D. Gullberg;U. Litzén
从宇宙学到恒星大气动力学，锌在天文学和天体物理学的许多研究领域中都是重要的元素。为了改进30年来对天体物理意义的锌线的测量，用空心阴极光源的傅里叶变换光谱仪记录了锌离子的发射光谱。已知能级的修正能量是从测量的3d104snl和3d94s2得到的。在涉及3d94s2组态的锌Ⅱ系中观察到了同位素位移。突出线和能级的精度分别为0.001-0.003 cm-1和0.002-0.005 cm-1。
Zinc is an element of importance in many research fields within astronomy and astrophysics, from cosmology to stellar atmosphere dynamics. With the aim of improving three decades old measurements of zinc lines of astrophysical interest, emission spectra of Zn I and Zn II have been recorded using a Fourier Transform Spectrometer with a hollow cathode light source. Revised energies for previously known levels are derived from the measurements for Zn I 3d104snl and for Zn II 3d10nl and 3d94s2. Isotope shifts are observed in Zn II lines involving the 3d94s2 configuration. The accuracy of prominent lines and energy levels are about 0.001–0.003 cm-1 and 0.002–0.005 cm-1 respectively.