Atomic transition probabilities of Gd I

被引：13

作者：

Lawler, J. E. ^{[1
]}

Bilty, K. A. ^{[2
]}

Den Hartog, E. A. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[2] Univ Wisconsin, Dept Phys & Astron, Eau Claire, WI 54702 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2011年 / 44卷 / 09期

基金：

美国国家科学基金会;

关键词：

METAL-POOR STARS; R-PROCESS-RICH; ARGON BRANCHING RATIOS; SPECTRAL-INTENSITY CALIBRATION; SUN; ABUNDANCES; GADOLINIUM; SPECTROMETER; ELEMENT;

D O I：

10.1088/0953-4075/44/9/095001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Fourier transform spectra are used to determine emission branching fractions for 1290 lines of the first spectrum of gadolinium (Gd I). These branching fractions are converted to absolute atomic transition probabilities using previously reported radiative lifetimes from time-resolved laser-induced-fluorescence measurements (Den Hartog et al 2011 J. Phys. B: At. Mol. Opt. Phys. 44 055001). The wavelength range of the data set is from 300 to 1850 nm. A least squares technique for separating blends of the first and second spectra lines is also described and demonstrated in this work.

引用

页数：9

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