Spectral Data for Ta II with Application to the Tantalum Abundance in chi Lupi
Författare
Summary, in English
Tantalum spectra, emitted from a hollow cathode, have been recorded with a Fourier transform spectrometer in the region 2000–5000 Ů The observed hyperfine patterns of Ta II have been analyzed, yielding center-of-gravity wavelengths for 199 lines and hyperfine constants for 38 even and 97 odd levels of Ta II. Improved energy level values have been derived. The laboratory data have been used for a study of the tantalum abundance of the CP star chi Lupi.
Avdelning/ar
Publiceringsår
2002
Språk
Engelska
Sidor
480-489
Publikation/Tidskrift/Serie
Physica Scripta
Volym
65
Issue
6
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
IOP Publishing
Ämne
- Astronomy, Astrophysics and Cosmology
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0031-8949