Spectra of W VIII and W IX in the EUV Region

The results obtained on the W VIII spectrum as well as on the isoelectronic spectra Lu V, Hf VI, Ta VII, and Re IX in the VUV wavelength region are summarized with emphasis on the main trends along the isoelectronic sequence. A total of 187 lines of W VIII in the region of 160-271 Å were accurately...

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Published inAtoms Vol. 3; no. 3; pp. 273 - 298
Main Authors Ryabtsev, Alexander, Kononov, Edward, Kildiyarova, Rimma, Tchang-Brillet, Wan-Ü, Wyart, Jean-Francois, Champion, Norbert, Blaess, Christophe
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2015
MDPI
Subjects
Astrophysics
atomic data for tungsten
energy levels
Hafnium
ion spectra
Lists
Mathematical analysis
parametric calculations
Physics
Regularity
Spectra
Transition probabilities
Trends
vacuum ultraviolet
Wavelengths
parametric calculations
energy levels
transition probabilities
atomic data for tungsten
vacuum ultraviolet
wavelengths
ion spectra
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Summary:The results obtained on the W VIII spectrum as well as on the isoelectronic spectra Lu V, Hf VI, Ta VII, and Re IX in the VUV wavelength region are summarized with emphasis on the main trends along the isoelectronic sequence. A total of 187 lines of W VIII in the region of 160-271 Å were accurately measured and identified, 98 levels were found, and transition probabilities calculated. The isoelectronic regularities support the data on W VIII. A list of spectral lines in the region of 170-199 Å, considered as belonging to W IX, is presented.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:2218-2004
2218-2004
DOI:10.3390/atoms3030273