P Palmeri et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 165005 doi:10.1088/0953-4075/42/16/165005
Lifetime measurements in Ru II and calculated oscillator strengths in Ru II and Ru III
P Palmeri1, P Quinet1,2, V Fivet1, É Biémont1,2, C R Cowley3, L Engström4, H Lundberg4, H Hartman5 and H Nilsson5
Show affiliationsA 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 Landé g-factors. The first set of transition probabilities is proposed for 25 strong lines depopulating the 4d55p5,7P° 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.
- PACS
-
32.70.Cs Oscillator strengths, lifetimes, transition moments
07.57.-c Infrared, submillimeter wave, microwave and radiowave instruments and equipment
33.50.Dq Fluorescence and phosphorescence spectra
32.50.+d Fluorescence, phosphorescence (including quenching)
- Subjects
- Dates
-
Issue 16 (28 August 2009)
Received 27 April 2009, in final form 18 June 2009
Published 22 July 2009
-
Lifetime measurements in Ru II and calculated oscillator strengths in Ru II and Ru III
P Palmeri et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 165005
-
Calorimetry of Bose–Einstein condensates
P B Blakie et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 3273
-
Mechanisms of cluster ionization in strong laser pulses
U Saalmann et al 2006 J. Phys. B: At. Mol. Opt. Phys. 39 R39
-
Partial photoionization cross sections of doubly excited helium below the ionization thresholds I8 and I9
Y H Jiang et al 2006 J. Phys. B: At. Mol. Opt. Phys. 39 L9
-
Cold atom clocks and applications
S Bize et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 S449
-
Spontaneous-emission suppression via multiphoton quantum interference
Jörg Evers and Christoph H Keitel 2004 J. Phys. B: At. Mol. Opt. Phys. 37 2771
-
On the role of shake-off in single-photon double ionization
T Pattard et al 2003 J. Phys. B: At. Mol. Opt. Phys. 36 L189
-
Linear dichroism in the 4d photoionization of atomic europium
J Schulz et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 907
-
Combining high-resolution photoelectron spectroscopy and laser polarization for a study of the 4f and 5p photoionization of atomic thulium
Ph Wernet et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 3887
-
A quasi-classical approach to fully differential ionization cross sections
Tihamér Geyer and Jan M Rost 2001 J. Phys. B: At. Mol. Opt. Phys. 34 L47
Users also read
What's this?- On the streamlines and particle paths of gravitational water waves
- The Galactic bulge: the VLT/CRIRES perspective
- The ALICE experiment at the CERN LHC
Tc and 
line source responses