Measurement of relative oscillator strengths for Fe I: Transitions from levels /b-3/-F/2-4/ /2.61 eV-2.56 eV/ - Use of a multipass optical system

Details Measurement of relative oscillator strengths for Fe I: Transitions from levels /b-3/-F/2-4/ /2.61 eV-2.56 eV/ - Use of a multipass optical system Measurement of relative oscillator strengths for Fe I: Transitions from levels /b-3/-F/2-4/ /2.61 eV-2.56 eV/ - Use of a multipass optical system

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.201..595b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 201, Nov. 1982, p. 595-602. Research supported by the Science and Engin

Other

105

Atomic Energy Levels, Electron Oscillations, Electron Transitions, Iron, Optical Emission Spectroscopy, Astronomical Spectroscopy, Furnaces, Line Spectra, Stellar Spectra

Scientific paper

The design of a three-pass optical system for use with the Oxford spectroscopic furnace is described. Relative oscillator strengths of 16 lines of Fe I (2.56 eV < χ < 2.61 eV, -0.9 > log gf > -2.7) measured by its use are presented. The accuracy of the relative values for the stronger lines is 0.006 dex (1.4 per cent) but some of the weaker lines have an accuracy of only 0.03 dex (7 per cent) because of possible blending. The relative values have been placed on an absolute scale through a comparison with Fe I 371.99 via Fe I lines of excitation energy 1.5 eV. Comparisons are made with the data of other experimenters and with theoretical values. A formula is proposed for adjusting the experimental results of Bridges & Kornblith to bring them into better agreement with the Oxford results.

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