Reference : Radiative lifetimes, branching fractions and oscillator strengths in PdI and the sola...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/26898
Radiative lifetimes, branching fractions and oscillator strengths in PdI and the solar palladium abundance
English
Xu, H. L. [> > > >]
Sun, Z. W. [> > > >]
Dai, Z. W. [> > > >]
Jiang, Z. K. [> > > >]
Palmeri, P. [> > > >]
Quinet, Pascal mailto [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie >]
Biémont, Emile mailto [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie >]
Jun-2006
Astronomy and Astrophysics
Edp Sciences S A
452
1
357-362
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis Cedex A
[en] atomic data ; techniques : spectroscopic ; stars : abundances
[en] Transition probabilities have been derived for 20 5s-5p transitions of Pd I from a combination of radiative lifetime measurements for 6 odd-parity levels with time-resolved laser-induced fluorescence spectroscopy and of branching fraction determination using a hollow cathode discharge lamp. Additional oscillator strengths for 18 transitions have been determined from measured lifetimes and theoretical branching fractions obtained from configuration interaction calculations with core-polarization effects included. These new results have allowed us to refine the palladium abundance in the solar photosphere: A(Pd) = 1.66 +/- 0.04, in the usual logarithmic scale, a result in close agreement with the meteoritic value.
Researchers ; Professionals
http://hdl.handle.net/2268/26898

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