Lifetimes in Fe II and the solar abundance of iron

Details Lifetimes in Fe II and the solar abundance of iron Lifetimes in Fe II and the solar abundance of iron

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...259..301h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 1, p. 301-306.

Astronomy and Astrophysics

Astrophysics

135

Abundance, Iron, Metallicity, Radiative Lifetime, Solar Spectra, Atomic Spectra, Transition Probabilities

Scientific paper

New atomic lifetimes have been determined for eight quartet (z 4D, z 4F) levels and ten sextet (z 6D, z 6F, z 6P) levels in Fe II and the results for seven of these levels have been combined with existing experimental branching fractions to obtain a revised set of log gf-values for 15 solar lines in Fe II. The new log gf data are used together with equivalent widths determined from the Liege solar atlas to derive a value for the iron photospheric abundance: 7.48 +/- 0.04, which is consistent with the currently accepted meteoritic result, 7.51 +/- 0.01. The results are compared with the atomic lifetime data, log gf data and solar analyses used in three other recent solar abundance determinations based on Fe II lines.

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