Lifetime measurements for RU I and the solar abundance of ruthenium

Details Lifetime measurements for RU I and the solar abundance of ruthenium Lifetime measurements for RU I and the solar abundance of ruthenium

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...131..364b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 131, no. 2, Feb. 1984, p. 364-366.

Astronomy and Astrophysics

Astrophysics

6

Abundance, Cosmochemistry, Radiative Lifetime, Ruthenium, Solar Spectra, Oscillator Strengths, Transition Probabilities

Scientific paper

Reference is made to studies by Biemont et al. (1982) and Kwiatkowski et al. (1982), in which 'modern' radiative lifetimes obtained by laser excitation were used to refine and update solar abundance values. The same procedure is extended here to Ru I. Radiative lifetimes are measured by laser excitation for 12 levels of Ru I. The results are combined with branching ratios taken from Corliss and Bozman (1962) in order to provide an accurate set of oscillator strengths for transitions of solar interest. From studying nine Ru I lines, the photospheric abundance is found to be 1.84 + or - 0.07.

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