Time-resolved laser-induced fluorescence lifetime measurements and relativistic Hartree-Fock calculations of transition probabilities in SmII
Författare
Summary, in English
Radiative lifetime measurements were performed with time-resolved laser-induced fluorescence techniques for 47 levels of the astrophysically important ion Sm1+ over the energy range 21000-36 000 cm(-1). The new results have been compared with previous measurements but also with theoretical calculations taking configuration interactions and core-polarization effects into account, and a satisfying agreement has been found for many levels of this complex ion. New calculated transition probabilities are deduced from the experimental lifetimes and from the theoretical branching fractions for 162 transitions of astrophysical interest. These results will help astrophysicists in the quantitative investigation of the chemical composition of CP stars.
Avdelning/ar
Publiceringsår
2003
Språk
Engelska
Sidor
4773-4787
Publikation/Tidskrift/Serie
Journal of Physics B: Atomic, Molecular and Optical Physics
Volym
36
Issue
24
Fulltext
- Available as PDF - 238 kB
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Dokumenttyp
Artikel i tidskrift
Förlag
IOP Publishing
Ämne
- Atom and Molecular Physics and Optics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0953-4075