Reference : Time-resolved laser-induced fluorescence lifetime measurements and relativistic Hartree-...

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry Physical, chemical, mathematical & earth Sciences : Physics Engineering, computing & technology : Electrical & electronics engineering
	To cite this reference:	http://hdl.handle.net/2268/26989

Title :	Time-resolved laser-induced fluorescence lifetime measurements and relativistic Hartree-Fock calculations of transition probabilities in SmII
Language :	English
Author, co-author :	Xu, H. L. [> > > >]
	Svanberg, S. [> > > >]
	Quinet, Pascal [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie >]
	Garnir, Henri-Pierre [Université de Liège - ULg > Département de physique > Physique nucléaire]
	Biémont, Emile [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie >]
Publication date :	28-Dec-2003
Journal title :	Journal of Physics B-Atomic Molecular and Optical Physics
Publisher :	Iop Publishing Ltd
Volume :	36
Issue/season :	24
Pages :	4773-4787
Audience :	International
ISSN :	0953-4075
City :	Bristol
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.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/26989

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