Radiative lifetime and oscillator strength determinations in Sm III

Biémont, E (author)

Garnir, H P (author)

Litzén, Ulf (author): Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science

Nielsen, Krister (author): Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Quinet, P (author)

Svanberg, Sune (author): Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Wahlgren, Glenn (author): Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science

Zhang, Zhiguo (author)

(creator_code:org_t)

2003-02-05
2003
English.
In: Astronomy & Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 399:1, s. 343-349

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Abstract Subject headings

Radiative lifetimes of 6 levels belonging to the4f5(6Hdeg,6Fdeg)5d configuration of Sm III have beenmeasured for the first time using a time-resolved laser-inducedfluorescence technique. Experimental data have been compared withsemi-empirical calculations. The agreement is excellent for 4 levelswith 6Fdeg as a parent term. Larger discrepancies(53 and 37) are observed for 2 levels with 6Hdegand 6Fdeg, respectively, as a parent term and areexplainable by strong mixing and cancellation effects occurring in theline strength calculations which are responsible of instabilitiesoccurring in the lifetimes considered as a function of J value withinthe term. Branching ratios for the lines depopulating the levels ofinterest have been measured by Fourier transform spectroscopy. A firstset of oscillator strengths has been deduced for this ion.

By the author/editor: Biémont, E; Garnir, H P; Litzén, Ulf; Nielsen, Krister; Quinet, P; Svanberg, Sune; show more...; Wahlgren, Glenn; Zhang, Zhiguo; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Atom and Molecul ...

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