Article (Scientific journals)
Lifetime measurements in Ru II and calculated oscillator strengths in Ru II and Ru III
Palmeri, P.; Quinet, Pascal; Fivet, V. et al.
2009In Journal of Physics : B Atomic Molecular and Optical Physics, 42, p. 1-12
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Abstract :
[en] A new set of theoretical f -values is reported for 178 Ru II transitions of astrophysical interest, involving energy levels below 58 000 cm−1. The theoretical model, including core-polarization effects, has been tested by comparing theoretical lifetimes with new measurements performed by time-resolved laser-induced fluorescence spectroscopy for 23 4d6(5D)5p odd levels of Ru II and by comparing theoretical and experimental Land´e g-factors. The first set of transition probabilities is proposed for 25 strong lines depopulating the 4d55p 5,7P◦ terms of Ru III. The new results will allow quantitative investigations of stellar spectra and allow the astrophysicists to refine the ruthenium abundance in stars.
Disciplines :
Physics
Author, co-author :
Palmeri, P.
Quinet, Pascal  ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Fivet, V.
Biémont, Emile ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Cowley, C. R.
Engström, L.
Lundberg, H.
Hartman, H.
Nilsson, H.
Language :
English
Title :
Lifetime measurements in Ru II and calculated oscillator strengths in Ru II and Ru III
Publication date :
2009
Journal title :
Journal of Physics : B Atomic Molecular and Optical Physics
ISSN :
0953-4075
eISSN :
1361-6455
Publisher :
Institute of Physics, Bristol, United Kingdom
Volume :
42
Pages :
1-12
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 March 2010

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