Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...249..545h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 249, no. 2, Sept. 1991, p. 545-549.
Astronomy and Astrophysics
Astrophysics
177
Abundance, Iron, Metallicity, Oscillator Strengths, Solar Atmosphere, Chondrites, Metal Ions, Photosphere, Radiative Lifetime, Solar Spectra, Transition Probabilities
Scientific paper
The solar abundance of iron is derived from photospheric Fe I lines whose f-values have been determined recently in a hollow-cathode experiment in combination with accurate lifetime measurements. Taking into account a small (+0.03 dex) abundance correction for photospheric non-LTE effects, a solar iron abundance of log N(Fe) = 7.50 +/-0.07 on the scale log N(H) = 12 is inferred. This result is in close agreement with that derived earlier from lines of ionized iron whose f-values have been obtained by the same technique, but it is 0.17 dex smaller than the currently accepted standard value based on absorption furnace f-values. The new result strengthens the evidence that the solar Fe/Si ratio agrees with the meteoritic value found in C1 chondrites.
Bard A.
Holweger Hartmut
Kock Anders
Kock Manfred
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