New identifications of MnVI and FeVII vacuum ultraviolet lines

被引：15
作者：
Ekberg, JO [2 ]
Feldman, U
机构：
[1] USN, Res Lab, EO Hulburt Ctr Space Res, Washington, DC 20375 USA
[2] Artep Inc, Ellicott City, MD 21042 USA
来源：
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2003年 / 148卷 / 02期
关键词：
atomic data; line : identification; methods : laboratory; Sun : UV radiation; ultraviolet : general;
D O I：
10.1086/377438
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Solar Ultraviolet Measurements of Emitted Radiation (SUMER) spectrometer aboard the Solar and Heliospheric Observatory (SOHO) recorded a large number of spectra in the 500-1600 Angstrom region. Although many of the detected lines have already been identified, the origins of a substantial fraction of the lines remain unknown. In this paper we report on a study of Mn VI and Fe VII in laboratory-generated vacuum spark spectra. Some of the Fe VII identified lines belonging to transitions of the type 3d4s-3d4p and 3d4p-3d4d were also observed in SUMER quiet-Sun and sunspot spectra. Because of the much lower manganese abundance in the solar atmosphere, none of the Mn VI lines were observed in the SUMER spectra.
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收藏
页码：567 / 574
页数：8
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