[en] The solar photospheric abundance of ruthenium is revised on the basis of a new set of oscillator
strengths derived for Ru I 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 Ru I
Disciplines :
Physics
Author, co-author :
Fivet, V.
Quinet, Pascal ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Palmeri, P.
Biémont, Emile ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Asplund, M.
Grevesse, Nicolas ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO)
Sauval, A. J.
Engström, L.
Lundberg, H.
Hartman, H.
Nilsson, H.
Language :
English
Title :
Experimental and theoretical radiative decay rates for highly excited ruthenium atomic levels and the solar abundance of ruthenium
Corliss C. H., Bozman W. R., 1962, Experimental Transition Probabilities for Spectral Lines of Seventy Elements. Natl. Bur. Stand., US, Monogr. 53
Cowan R. D., 1981, The Theory of Atomic Structure and Spectra. University of California Press, Berkeley, CA
Delbouille L., Neven L., Roland G., 1973, Atlas Photométrique du Spectre Solaire de 3000 á 10000 Å. Institut d'Astrophysique, Université de Liège, Liège
Fivet V., Palmeri P., Quinet P., Biémont É., Xu H. L., Svanberg S., 2006, Eur. Phys. J. D, 37, 29
Fraga S., Karwowski J., Saxena K. M. S., 1976, Handbook of Atomic Data. Elsevier, Amsterdam
Harrison G. R., McNally J. R., Jr., 1940, Phys. Rev., 58, 703
Holweger H., Müller E. A., 1974, Sol. Phys., 39, 19
Jaschek M., Brandi E., 1972, A&A, 20, 233
Kessler K. G., Meggers W. F., 1955, J. Res. Nat. Bur. Stand., 55, 97
Krishnaswamy K., Sneden C., 1985, PASP, 97, 407
Lodders K., Palme H., Gail H. P., 2009, Landoldt-Börnstein series in Astronomy and Astrophysics, in press
McNally J. R., Jr., 1941, Thesis, MIT, Cambridge, MA
Meggers W. F., Laporte O., 1926, J. Wash. Acad. Sci., 16, 143
Moore C. E., 1971, Atomic Energy Levels, NSRDS-NBS 35
