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Time-resolved laser-induced fluorescence lifetime measurements and relativistic Hartree-Fock calculations of transition probabilities in SmII

In English

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

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0953-4075