Fe I oscillator strengths for transitions from high-lying odd-parity levels

M. T. Belmonte, J. C. Pickering, M. P. Ruffoni, E . A. Den Hartog, J. E. Lawler, A. Guzman, U. Heiter

Published 2017-10-20Version 1

We report new experimental Fe I oscillator strengths obtained by combining measurements of branching fractions measured with a Fourier Transform spectrometer and time-resolved laser-induced fluorescence lifetimes. The study covers the spectral region ranging from 213 to 1033 nm. A total of 120 experimental log(gf)-values coming from 15 odd-parity energy levels are provided, 22 of which have not been reported previously and 63 values with lower uncertainty than the existing data. Radiative lifetimes for 60 upper energy levels are presented, 39 of which have no previous measurements.