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  • 标题:Experimental transition probabilities for 4p – 4d spectral lines in V  II
  • 本地全文:下载
  • 作者:H. Nilsson ; J. Andersson ; L. Engström
  • 期刊名称:Astronomy & Astrophysics
  • 印刷版ISSN:0004-6361
  • 电子版ISSN:1432-0746
  • 出版年度:2019
  • 卷号:622
  • DOI:10.1051/0004-6361/201834795
  • 语种:English
  • 出版社:EDP Sciences
  • 摘要:Aims. We aim to measure lifetimes of levels belonging to the 3d3(4F)4d subconfiguration in V II, and derive absolute transition probabilities by combining the lifetimes with experimental branching fractions.Methods. The lifetimes were measured using time-resolved laser-induced fluorescence in a two-photon excitation scheme. The branching fractions were measured in intensity calibrated spectra from a hollow cathode discharge lamp, recorded with a Fourier transform spectrometer.Results. We report lifetimes for 13 levels at an energy around 73 000 cm−1. Absolute transition probabilities of 78 lines are derived by combining the lifetimes and branching fractions. The experimental values are compared with theoretical data from the literature.
  • 关键词:enatomic dataline: identificationmethods: laboratory: atomictechniques: spectroscopic
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