Radiative lifetime measurements in DY II and the solar abundance of dysprosium

Details Radiative lifetime measurements in DY II and the solar abundance of dysprosium Radiative lifetime measurements in DY II and the solar abundance of dysprosium

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...273..665b&link_type=abstract

Astronomy and Astrophysics, Vol. 273, p. 665 (1993)

Astronomy and Astrophysics

Astrophysics

31

Atomic Data, Line Identification, Sun: Abundances, Sun: Photosphere

Scientific paper

New radiative lifetimes have been measured for 28 levels of Dy II by the method of laser-induced fluorescence from sputtered metal vapour. The new lifetime values have been combined with branching fractions determined from recent transition probability measurements in order to deduce oscillator strengths for a total of 63 lines of Dy II. Finally, on the basis of this new set of atomic data and new measurements of equivalent widths of a sample of 16 solar lines, a refined value is proposed for the solar photospheric content of dysprosium: ADy =1.20±0.06 in the usual logarithmic scale, where ADy = log(NDy/NH) + 12.00.

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