Experimental f-Value and Isotopic Structure for the Ni I Line Blended with [O I] at 6300 Å
Johansson, Sveneric; Litzén, Ulf; Lundberg, Hans; Zhang, Z (2003). Experimental f-Value and Isotopic Structure for the Ni I Line Blended with [O I] at 6300 Å. Astrophysical Journal, 584, (2), 107 - 110
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Published
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English
Authors:
Johansson, Sveneric
;
Litzén, Ulf
;
Lundberg, Hans
;
Zhang, Z
Department:
Lund Observatory - Has been reorganised
Atomic Physics
Abstract:
We have measured the oscillator strength of the Ni I line at 6300.34Å, which is known to be blended with the forbidden line [O I]lambda6300 used for the determination of the oxygen abundance in coolstars. We also give wavelengths of the two isotopic line components of<SUP>58</SUP>Ni and <SUP>60</SUP>Ni derived from the asymmetriclaboratory line profile. These two line components of Ni I have to beconsidered when calculating a line profile of the 6300 Å featureobserved in stellar and solar spectra. We also discuss the labeling ofthe energy levels involved in the Ni I line since level mixing makes thetheoretical predictions uncertain.
Keywords:
Sun: Abundances ;
Stars: Abundances ;
Atomic Data ;
Astronomy, Astrophysics and Cosmology ;
Atom and Molecular Physics and Optics
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