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Astron. Astrophys. 342, 610-613 (1999)

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Selected Fe II lifetimes and f-values suitable for a solar abundance study

R. Schnabel 1, M. Kock 1 and H. Holweger 2

1 Institut für Atom- und Molekülphysik, Abteilung Plasmaphysik, Universität Hannover, Callinstrasse 38, D-30167 Hannover, Germany (e-mail: kock@pmp.uni-hannover.de)
2 Institut für Theoretische Physik und Astrophysik, Universität Kiel, D-24098 Kiel, Germany (e-mail: supas059@astrophysik.uni-kiel.de)

Received 12 October 1998 / Accepted 12 November 1998


A selected number of Fe II level lifetimes have been measured anew with an improved experimental equipment and evaluation procedure yielding data with uncertainties around 1%. The lifetimes have been used to rescale the corresponding oscillator strengths and to derive solar abundances. On average, the iron abundance, log N(Fe) = 7.42 [FORMULA] 0.09 on the scale log N(H) = 12, is further reduced supporting the lower abundance results in the literature.

Key words: atomic data – methods: laboratory – Sun: abundances

Send offprint requests to: M. Kock

This article contains no SIMBAD objects.


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© European Southern Observatory (ESO) 1999

Online publication: February 22, 1999