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Accurate f-Values for Ultraviolet Transitions From the 3d5 (6S) 4p Levels in Mn II



R Kling, Ulf Griesmann


We have measured branching fractions for ultraviolet electric dipole transitions from upper levels belonging to the 3d5(6S)4p5P and 3d5 (6S)4p7P terms of Mn II. The levels were excited in a hollow cathode lamp and the spectra were observed with a Fourier fraction transform spectrometer. Absolute oscillator strengths, based on the new branching fraction measurements, were determined using existing experimental lifetime data. The uncertainty of the f-values is below 5% for strong, LS-allowed transitions. Oscillator strengths for several very weak intercombination lines with log(gf)
Astrophysical Journal
No. 2


atomic transition probabilities, fourier transform spectroscopy, Mn II


Kling, R. and Griesmann, U. (2000), Accurate f-Values for Ultraviolet Transitions From the 3d<sup>5</sup> (<sup>6</sup>S) 4p Levels in Mn II, Astrophysical Journal (Accessed June 18, 2024)


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Created March 1, 2000, Updated February 17, 2017