Fivet, V. ; Quinet, P. ; Palmeri, P. ; Biémont, É. ; Asplund, M. ; Grevesse, N. ; Sauval, A. J. ; Engström, L. ; Lundberg, H. ; Hartman, H. ; Nilsson, H.

published in Monthly Notices of the Royal Astronomical Society, 396, pp. 2124-2132 (2009)

Abstract: The solar photospheric abundance of ruthenium is revised on the basis of a new set of oscillator strengths derived for RuI transitions with wavelengths in the spectral range 2250-4710 Å. The new abundance value (in the usual logarithmic scale where the solar hydrogen abundance is equal to 12.00), ARu = 1.72 +/- 0.10, is in agreement with the most recent meteoritic result, ARu = 1.76 +/- 0.03. The accuracy of the transition probabilities, obtained using a relativistic Hartree-Fock model including core-polarization effects, has been assessed by comparing the theoretical lifetimes with previous experimental results. A comparison is also made with new measurements performed in this work by the time-resolved laser-induced fluorescence spectroscopy for 10 highly excited odd-parity levels of RuI.

DOI: 10.1111/j.1365-2966.2009.14761.x
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