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Solar Oscillator Strengths As A Diagnostic Tool

  • E. A. Gurtovenko
  • R. I. Kostik
  • R. J. Rutten
Conference paper
Part of the International Astronomical Union book series (IAUS, volume 138)

Abstract

We briefly review the Kiev program for determining oscillator strengths of Fraunhofer lines from the optical solar spectrum, which has recently resulted in a compilation of solar gf-values for 1958 lines from 40 chemical elements (Gurtovenko and Kostik 1989). These gf-values were determined empirically by fitting solar lines using standard plane-parallel LTE modelling. Errors in this modelling propagate into the gf-values; reversely, the deviations in the latter may serve as diagnostics of the modelling and thus of spectral line formation in the solar photosphere. For a small subset, comparison with reliable laboratory data can be made; for other lines there is information in the differences between fits of the line area and of the line depth.

Keywords

Oscillator Strength Solar Phys Monthly Notice Solar Photosphere Iron Line 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© International Astronomical Union 1990

Authors and Affiliations

  • E. A. Gurtovenko
    • 1
  • R. I. Kostik
    • 1
  • R. J. Rutten
    • 2
  1. 1.Main Astronomical ObservatoryAcademy of Sciences of the Ukrainian SSRKievUSSR
  2. 2.Sterrekundig InstituutUtrechtThe Netherlands

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