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A Photospheric Solar Iron Abundance from Weak FeII Lines

Published online by Cambridge University Press:  19 July 2016

U. Pauls ,
N. Grevesse  and
M. C. E. Huber
U. Pauls
Affiliation:
Institut für Astronomie, Eidgenössische Technische Hochschule, ETH–Zentrum CH – 8092 Zürich, Switzerland
N. Grevesse
Affiliation:
Institut d'Astrophysique, Université de Liège, B – 4200 Ougrée–Liège, Belgium
M. C. E. Huber
Affiliation:
Institut für Astronomie, Eidgenössische Technische Hochschule, ETH–Zentrum CH – 8092 Zürich, Switzerland

Abstract

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The high resolution and the high light-gathering power of a Fourier–transform spectrometer (FTS) afford the observation of very weak lines in laboratory spectra. Thus it became possible to determine an accurate solar iron abundance from Fe II lines that are weak in the solar spectrum: we measured the branching fractions of a few such lines whose upper levels lifetimes are known.

Type
VI. Chemical Composition of Stars
Information
Symposium - International Astronomical Union , Volume 132: The Impact of Veryhigh S/N Spectroscopy on Stellar Physics , 1988 , pp. 425 - 427
Copyright
Copyright © Kluwer 1988 

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