On the establishment of internally consistent solar scales of oscillator strengths and abundances of chemical elements. I - Oscillator strengths for 865 FeI lines iron abundance

Details On the establishment of internally consistent solar scales of oscillator strengths and abundances of chemical elements. I - Oscillator strengths for 865 FeI lines iron abundance On the establishment of internally consistent solar scales of oscillator strengths and abundances of chemical elements. I - Oscillator strengths for 865 FeI lines iron abundance

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26as...46..239g&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 46, Nov. 1981, p. 239-248.

Astronomy and Astrophysics

Astrophysics

81

Abundance, Iron, Molecular Oscillators, Photosphere, Solar Atmosphere, Solar Spectra, Atmospheric Turbulence, Error Analysis, Fraunhofer Lines, Line Spectra

Scientific paper

A method is developed for the establishment of internally consistent scales for solar abundances and oscillator strengths and used to deduce the solar iron abundance and the oscillator strengths for 865 Fe I lines. The method involves the calculation of L, defined as the product of the abundance with the oscillator strength, which can be inferred from the line profiles, equivalent widths, central intensities and the entire Fraunhofer spectrum of the specific chemical element. In the iron study, abundance and oscillator strengths are derived from unblended central intensities of lines in the region 4000-8000 A taking into account the influence of macroturbulence velocities. An average iron abundance of 7.525 + or - 0.007 is obtained from 266 weak and moderately strong lines appearing in the oscillator strength scale of May et al. (1974). The obtained abundance was then used to calculate the oscillation strengths of all 612 weak and moderate Fe I lines and the remaining strong lines to within + or - 0.035 dex.

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