Precision measurement of relative oscillator strengths. VII - Comparison between measured lifetimes of excited Fe I levels and values calculated from precise oscillator strengths

Details Precision measurement of relative oscillator strengths. VII - Comparison between measured lifetimes of excited Fe I levels and values calculated from precise oscillator strengths Precision measurement of relative oscillator strengths. VII - Comparison between measured lifetimes of excited Fe I levels and values calculated from precise oscillator strengths

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.186..669b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 186, Mar. 1979, p. 669-672. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

14

Astronomical Spectroscopy, Atomic Excitations, Iron, Line Spectra, Atomic Spectra, Oscillators, Radiative Lifetime, Tables (Data)

Scientific paper

Lifetimes of 12 excited levels of Fe I and branching ratios for radiative deexcitation of these levels are calculated from Oxford oscillator strengths and compared with various experimental measurements. It is found that the differences between the calculated and measured values, and their standard deviations, are rather poor, except for the results of Figger et al. (1975), for which the mean deviation is 0.5% and the standard deviation of the differences is 5.8%. It is concluded that the absorption technique used at Oxford yields the oscillator strengths of excited lines more accurately than do lifetime measurements.

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