The potassium abundance in the solar photosphere

descriptionPublicationkeyboard_double_arrow_right Article 01 Jul 1975 English Publisher:Springer Science and Business Media LLCJournal:Solar Physics, volume 43, pages 15-32 (issn: 0038-0938, eissn: 1573-093X,

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Authors: Ramiro De La Reza; Edith A. Müller;

doi: 10.1007/bf00155138

The potassium abundance in the solar photosphere

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Abstract

High precision center-limb spectrograms of the K i resonance doublet line at λ 7699 A were used to study the line formation and to determine the abundance of potassium in the solar atmosphere. The LTE assumption is not valid for these lines. Synthetic profiles computed in NLTE reproduce very well the observed center-limb line behaviour and yield logɛ K = 5.14±0.10 for the solar abundance of potassium (on the scale of logɛ H = 12 for Hydrogen).

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