Article (Scientific journals)
Time-resolved laser-induced fluorescence lifetime measurements and relativistic Hartree-Fock calculations of transition probabilities in SmII
Xu, H. L.; Svanberg, S.; Quinet, Pascal et al.
2003In Journal of Physics : B Atomic Molecular and Optical Physics, 36 (24), p. 4773-4787
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Abstract :
[en] 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.
Disciplines :
Chemistry
Physics
Electrical & electronics engineering
Author, co-author :
Xu, H. L.
Svanberg, S.
Quinet, Pascal  ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Garnir, Henri-Pierre ;  Université de Liège - ULiège > Département de physique > Physique nucléaire
Biémont, Emile ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Language :
English
Title :
Time-resolved laser-induced fluorescence lifetime measurements and relativistic Hartree-Fock calculations of transition probabilities in SmII
Publication date :
28 December 2003
Journal title :
Journal of Physics : B Atomic Molecular and Optical Physics
ISSN :
0953-4075
eISSN :
1361-6455
Publisher :
Iop Publishing Ltd, Bristol, United Kingdom
Volume :
36
Issue :
24
Pages :
4773-4787
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 March 2010

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