Emission-Line Spectra of S VII-S XIV in the 20-75 Å Wavelength Region

Emission-Line Spectra of S VII-S XIV in the 20-75 Å Wavelength Region
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DOI:
10.1086/429879
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发表时间:
2005-06
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
J. Lepson;P. Beiersdorfer;E. Behar;S. Kahn
J. Lepson;P. Beiersdorfer;E. Behar;S. Kahn
中科院分区:
其他
文献类型:
--
作者:
J. Lepson;P. Beiersdorfer;E. Behar;S. Kahn

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作为一个更大的项目的一部分,以完成一个全面的目录天体物理相关的发射线,以支持新一代X射线天文台使用劳伦斯利弗莫尔电子束离子阱EBIT-I和EBIT-II,我们目前的观测硫线在软X射线和极紫外线区域。我们的数据库包括波长测量与标准误差,相对强度,和线分配的127个过渡的S VII到S XIV之间的20和75毫米。实验数据的补充与一套完整的计算使用希伯来大学劳伦斯利弗莫尔原子代码(HULLAC)。比较的实验室数据与钱德拉测量的南河三,使我们能够确定S VII-S XI线。
As part of a larger project to complete a comprehensive catalog of astrophysically relevant emission lines in support of new-generation X-ray observatories using the Lawrence Livermore electron beam ion traps EBIT-I and EBIT-II, we present observations of sulfur lines in the soft X-ray and extreme-ultraviolet regions. Our database includes wavelength measurements with standard errors, relative intensities, and line assignments for 127 transitions of S VII through S XIV between 20 and 75 Å. The experimental data are complemented with a full set of calculations using the Hebrew University Lawrence Livermore Atomic Code (HULLAC). A comparison of the laboratory data with Chandra measurements of Procyon allows us to identify S VII-S XI lines.